At Commands for GPRS_1.3

8/2/2019 At Commands for GPRS_1.3

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WAVECOM ASIA PACIFIC LIMITED5th Floor, Shui On Centre6-8 Harbour Road, Wan ChaiHong Kong, People's Republic of ChinaTelephone: + 852 2824 0254Fax: + 852 2824 0255Corporate web site: www.wavecom.com

A T c o m m a n d s f o r G PRS

Vers ion : 1 .31 .3Date : 1 1 / 0 7 / 2 0 0 11 1 / 0 7 / 2 0 0 1Reference :Ini t ia l version R eg i s M A D E CR eg i s M A D E CA u t h o r Sebas t ien LESREL 30 /11 /00Sebas t ien LESREL 30 /11 /00

T h i s docum en t i s t he p rope rt y o f W AVECOM , and i s t r ans fe rred t o______________________________ u n d er t h e con d it io n s o f t h e ac t iv e N on -D is c lo su reAg reem ent dated __________. Use of t h is d ocu m ent is su bject t o th e term s of t h isNDA . T h is docum en t w i ll be ret u rned t o W AVECOM und e r reques t .


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W A V EC O M c o n f i d e n t i al This conf ident ia l docum ent i s t he proper t y o f WA VECOM and m ay no t be cop ied or c i rcu la ted w i thout perm iss ion

CONTENTS

1 Define PDP Cont ext + CGDCONT ... . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . . .. . . . .. . . 4 2 Qu ali ty of Serv ice Prof i le (Requ ested) + CGQREQ ... . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . 6 5 PDP con text act ivat e or deact ivat e + CGACT... . . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . . .. . 12 6 Enter d ata s tate + CGDA TA ... . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . 14 7 GPRS m obi le st at ion c lass + CGCLA SS ... . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . 16 8 Select serv ice for M O SM S m essages + CGSM S ... . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. 18 10 GPRS netw ork regist rat ion stat us + CGREG ... . .. . . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . . .. . 21 1 1 Requ est GPRS IP service 'D'................................................................................ 22 1 2 Netw ork requ ested PDP con text act iv at ion .. . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. 23

1 3 Au tom a t ic response to a ne tw o rk reques t fo r PDP con tex t ac t iva t ion + CGAUTO 24 1 4 M anua l response to a ne tw o rk reques t fo r PDP con tex t act i va t ion + CGAN S . .. .. . 26 1 5 Show PDP add ress + CGPAD DR ... . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . 28 1 6 Cellu lar result codes + CRC ... . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . .. . 29 1 6 Service report in g cont ro l + CR... . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . .. . 30 17 Extend ed error report + CEER ... . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . .. 31 18 PDP Cou nt ers Info s + CGCOUNTERS... . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . . .. 32 1 9 GPRS-related errors + CM E ERROR: < error> .. . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . 33

19 .1 Errors re lated to a fa i lure to perform an At tach .. . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . . 33 19 .2 Errors related to a fa i lure to Act ivate a Cont ext . . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . . 33 19 .3 Oth er GPRS errors .. . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . . .. . 33

2 0 Specif ic GPRS Fai lure Cause for + CEER... . . . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . . 33 2 1 Ful l AT com m and s exam ples .. . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . 35

21 .1 A ctivat ion of an IP PDP con text . . . . . .. . . . .. . . . . .. . . . . .. . . . .. . . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . 35

21 .2 Netw ork request . . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . .. . . . . .. . . . . .. . . . . .. . . . . .. . . . .. . . . . .. . . . . 36

T h i s d o c u m en t i sT h i s d o c u m en t i s b a s ed o n G SM r ec o m m a n d a t io n 0 7 . 0 7 .b a sed o n G SM r ec o m m a n d at io n 0 7 .0 7 .W a v ec o m m a y a t a n y t i m e m a ke m o d i fic a t io n s t o t h i s l is tW a v ec o m m a y a t a n y t i m e m a ke m o d i fic at io n s t o t h i s l is tw it h o u t p r io r n o t ic e.w it h o u t p r io r n o t ic e.

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W A V EC O M c o n f i d e n t i al This conf ident ia l document i s t he proper t y o f WA VECOM and m ay no t be cop ied or c i rcu la ted w i thout perm iss ion

1 D e f in e PD P C o n t e x t + C G D C O N T

Command Possible response(s)+CGDCONT=[ [, [,[, [,

[,]]]]]]

OK

ERROR

+CGDCONT? +CGDCONT: , ,

,, ,

[+CGDCONT: , ,,, ,

[...]]

+CGDCONT=? +CGDCONT: (range o f sup por ted s),

,,,( lis t o f sup por ted

s),

( lis t o f sup por ted s)

[+CGDCONT: ( range o f sup por ted

s), ,,,( lis t o f sup por ted

s),( lis t o f sup por ted s)[...]]

D e s c r i p t i o nD e s c r i p t i o n

This com m and spec i f ies PDP contex t param eter va lues fo r a PDP contex t ident i f ied bythe loca l con tex t ident i f ica t ion param eter, .

Eleven PDP contex ts can be def ined th roug h W avecom sof tw are.

A spec ial fo rm o f the set com m and , + CGDCONT= < c id> causes the va lues fo r con tex tn u m b e r < c i d > t o b e c om e u n d e fi n ed .

The tes t com m and re tu rns va lues suppo r ted as a com pound va lue . If the M T suppo r tssevera l PDP typ es, , the p arameter va lue ranges fo r each < PDP_typ e> arere turned on a separate l ine .

The read com m and re tu rns th e cur ren t se t t ings fo r each de f ined contex t .

The tes t com m and re tu rns va lues suppo r ted as a compou nd va lue . If the M T suppo r tsseveral PDP types, < PDP_typ e), the param eter value rang es for each < PDP_typ e> arere turned on a separate l ine .

Def ined va luesDe f ined va lues

< c i d >< c i d > : (PDP Contex t Ident i f ie r ) a nu m er ic param eter (1 -32 ) w h ich sp ec if ies a par t icu la rPDP contex t de f in i t ion . The param eter is loca l to the TE-M T in te r face and is u sed in

o the r PDP con tex t - related com m ands .

< PDP_typ e>< PDP_typ e> : (Packet Data Pro toco l typ e) a s t r ing p arameter w h ich sp ec if ies th e type o fpacket da ta pro toco l

q IP Intern et Protocolq PPP Po in t to Po in t Pro toco l

< A P N >< A P N > : (Access Po in t N am e) a s t r ing param eter, w h ich is a log ica l nam e tha t is used tose lec t the GGSN or th e ex terna l packet da ta ne tw ork .I f the va lue is nu l l o r om i t ted , then the sub scr ip t ion va lue w i l l be requested .

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< PDP_address>< PDP_add ress> : a s t r ing param eter tha t ident i f ies the M T in the address spaceapp l icab le to the PDP.I f th e va lue is nu l l o r omi t t ed , then a va lue m ay be prov ided by th e TE du r ing th e PDPstar tup p rocedure or , fa i ling th a t , a dyn am ic address w i l l be requested .

The read fo rm o f the com m and w i ll con t inue to retu rn t he nu l l s t r ing even i f an add resshas been a l loca ted dur ing the PDP s tar tup procedure . The a lloca ted add ress may b e

read us ing t he + C G P A D D R+ C G P A D D R c o m m a n d .

< d _c o m p >< d _c o m p > : a num er ic param eter tha t con tro ls PDP data com press ionq 0 - o f f (defau l t i f va lue is om i t ted)q 1 onq Oth er values are reserved.

< h _c o m p >< h _c o m p > : a num er ic param eter tha t con tro ls PDP header comp ress ionq 0 - o f f (de fau l t i f va lue is om i t ted)q 1 onq Oth er values are reserved.

NOTE. At p resent on ly one da ta com press ion a lgor i thm (V.42b is ) is p rov ided inSNDCP. If and w hen o the r a lgo r i thm s become ava ilab le, a comm and w i ll be p rov ided to

se lec t one or m ore o f these.

NOTE. 32 c ids are ava i lab le to spec i f ie 32 PDP contex t s bu t on ly 11 NSA PI a reava i lab le fo r PDP ac t iva t ion . Due to W avecom Cho ice , 32 PDP cont ex ts canbe spec if ie w i th on ly onr ac t iva ted at the sam e t im e.

Ex a m p l eEx a m p l e

AT +CGDCONT=1, "IP", "internet"; +GCDCONT=2, "IP", "abc.com"

OK

AT+CGDCONT=?

+CGDCONT=(1-32),IP,,,(0-1),(0-1)

+CGDCONT=(1-32),PPP,,,0,0

OK

AT+CGDCONT?

+CGDCONT=1, "IP", "internet",,0,0

+CGDCONT=2, "IP", "abc.com",,0,0

OK

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2 Q u a l i t y o f S er v i c e P r o f i le(Re q u e s t e d ) + C G Q REQ

C o m m a n dC o m m a n d Poss ib le Respon se (s )Poss ib le Respon se (s )+CGQREQ=[ [ ,

[ , [ ,< re liab i li ty .> [ ,< peak>[ ,< m ean> ] ] ]] ] ]

OKERROR

+ CGQREQ? +CGQREQ: , , ,, , [+CGQREQ: , ,, , , []]

+CGQREQ=? +CGQREQ: , (list of supporteds), (list of supporteds), (list of supporteds) , (list of supporteds), (list of supported s)[+CGQREQ: , (list ofsupported s), (list ofsupported s), (list of supporteds) , (list of supporteds), (list of supported s)

[]]


This com m and a l low s the TE to spec i fy a Qua l ity o f Serv ice Pro f ile th a t is used w hen th eM T sends an Ac t i va te PDP Con tex t Reques t m essage to the ne tw o rk.

The se t com m and sp ec if ies a p ro f i le fo r the cont ex t ident i f ied b y th e loca l con tex tident i f icat ion param eter, . S ince th is is the sam e param eter tha t is used in th e+ C G D C O N T+ C G D C O N T com m and , the + CGQREQ com m and i s e f fect i vely an ex tens ion to th e+ CGDCONT com m and. The QoS pro f i le cons is ts o f a num ber o f param eters , each o fw h ich m ay be set to a separa te va lue .

A spec ia l form o f the se t com m and , + CGQREQ= < c id> causes the requested p ro f i le fo rcon tex t num ber < c id> to becom e und e fined .

The read com m and re tu rns th e cur ren t se t t ings fo r each de f ined contex t .The tes t com m and re tu rns va lues suppo r ted as a com pound va lue . If the M T suppo r tssevera l PDP types, the p arameter va lue ranges fo r each PDP typ e are retu rn ed on aseparate l ine.


< c i d >< c i d > : a num er ic param eter w h ich spec i f ies a par t icu lar PDP contex t d e f in i t ion .

 : a num er ic param eter w h ich spec i f ies the precedence c lass

< d e la y >< d e la y > : a num er ic param eter w h ich sp ec if ies the de lay c lass

< re l iab i l i t y>< re l iab i l i t y> : a num er ic param eter w h ich sp ec if ies th e rel iab i l i ty c lass

 : a nu m er ic parameter w h ich spec i f ies the peak th rou ghp ut c lass

< m e a n >< m e a n > : a num eric pa ram e ter w h ich spec if ies the mean th rough pu t c lass

I f a va lue is om i t ted fo r a par t icu la r c lass then t he va lue is cons idered t o be u nspec i f ied .

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PrecedencePrecedence

Precedence Precedence Name Interpretation

0 Subscribed Subscribed by the Nwk / default if value is omitted

1 High priority Service commitments shall be maintained ahead of precedence classes 2 and 3.2 Normal priority Service commitments shall be maintained ahead of precedence class 3.3 Low priority Service commitments shall be maintained after precedence classes 1 and 2.

DelayDelay

Delay (maximum values)

SDU size: 128 octets SDU size: 1024 octets

Delay ClassMeanTransferDelay (sec)

95 percentileDelay (sec)

MeanTransferDelay (sec)

95 percentileDelay (sec)

0 Subscribed Subscribed by the Nwk / default if value isomitted

1. (Predictive) < 0.5 < 1.5 < 2 < 72. (Predictive) < 5 < 25 < 15 < 753. (Predictive) < 50 < 250 < 75 < 375

4. (Best Effort) Unspecified

Rel iab i l iyRe l iab i l iy

ReliabilityClass

GTP Mode LLC Frame Mode LLC DataProtection

RLC Block Mode Traffic Type

0 Subscribed Subscribed by the Nwk / default if value is omitted1 Acknowledged Acknowledged Protected Acknowledged Non real-time traffic, error-

sensitive application thatcannot cope with data loss.

2 Unacknowledged Acknowledged Protected Acknowledged Non real-time traffic, error-sensitive application thatcan cope with infrequentdata loss.

3 Unacknowledged Unacknowledged Protected Acknowledged Non real-time traffic, error-sensitive application thatcan cope with data loss,GMM/SM, and SMS.

4 Unacknowledged Unacknowledged Protected Unacknowledged Real-time traffic, error-sensitive application thatcan cope with data loss.

5 Unacknowledged Unacknowledged Unprotected Unacknowledged Real-time traffic, error non-sensitive application thatcan cope with data loss.

NOTE: For real-time traffic, the QoS profile also requires appropriate settings for delay and throughput.

Pe a k t h r o u g h p u tPe a k t h r o u g h p u t


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Peak Throughput Class Peak Throughput in octets per second

0 Subscribed by the Nwk / default if value is omitted1 Up to 1 000 (8 kbit/s).2 Up to 2 000 (16 kbit/s).3 Up to 4 000 (32 kbit/s).4 Up to 8 000 (64 kbit/s).5 Up to 16 000 (128 kbit/s).6 Up to 32 000 (256 kbit/s).7 Up to 64 000 (512 kbit/s).8 Up to 128 000 (1 024 kbit/s).9 Up to 256 000 (2 048 kbit/s).

M ea n t h ro u g h p u tM ea n t h ro u g h p u t

Mean Throughput Class Mean Throughput in octets per hour

0 Subscribed by the Nwk / default if value is omitted1 100 (~0.22 bit/s).

2 200 (~0.44 bit/s).3 500 (~1.11 bit/s).

4 1 000 (~2.2 bit/s).5 2 000 (~4.4 bit/s).

6 5 000 (~11.1 bit/s).7 10 000 (~22 bit/s).

8 20 000 (~44 bit/s).9 50 000 (~111 bit/s).10 100 000 (~0.22 kbit/s).11 200 000 (~0.44 kbit/s).12 500 000 (~1.11 kbit/s).13 1 000 000 (~2.2 kbit/s).14 2 000 000 (~4.4 kbit/s).15 5 000 000 (~11.1 kbit/s).16 10 000 000 (~22 kbit/s).17 20 000 000 (~44 kbit/s).18 50 000 000 (~111 kbit/s).

31 Best effort.

ExE x a m p l ea m p l e

AT +CGQREQ=1,1,4,5,2,14

OK

AT+CGQREQ=?

+CGQREG: IP, (1-3), (1-4), (1-5), (1-9), (1-31)

+CGQREQ: PPP, (1-3), (1-4), (1-5), (1-9), (1-31)

OK

AT+CGQREQ?

+CGQREQ: 1,1,4,5,2,14

OK

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3 Q u a l i t y o f S er v i c e P r o f i le(M in im u m a c c e p t a b le ) + C G Q M IN

C o m m a n dC o m m a n d PoPoss ib le Response(s)ss ib le Response(s)+ C GQ M IN = [ [ ,

[ , [ ,< re liab i li ty .> [ ,< peak>[ ,< m ean> ] ] ]] ] ]

OKERROR

+ C G QM IN ? +CGQMIN: , , ,, , [+CGQMIN: , ,, , , []]

+ C GQ M IN = ? +CGQMIN: , (list of supporteds), (list of supporteds), (list of supporteds) , (list of supporteds), (list of supported s)[+CGQMIN: , (list ofsupported s), (list ofsupported s), (list of supporteds) , (list of supported

s), (list of supported s)[]]


Th is comm and a l low s the TE to spec if y a m in imu m accep tab le p ro fi le w h ich i s checkedby th e M T aga ins t the negot ia ted pro f i le re tu rned in th e Act iva te PDP Contex t Acceptm essage.

The se t com m and sp ec if ies a p ro f i le fo r the cont ex t ident i f ied b y th e loca l con tex tident i f icat ion param eter, . S ince th is is the sam e param eter tha t is used in th e+ C G D C O N T+ C G D C O N T com m and , the +CGQM IN comm and i s ef fec t i vely an ex tens ion to the+ CGDCONT com m and. The QoS pro f i le cons is ts o f a num ber o f param eters , each o fw h ich m ay be set to a separa te va lue .

A spec ia l fo rm o f the set comm and , +CGQM IN= < c id> causes the m in imu m accep tab lep ro f il e fo r con tex t nu m ber to becom e unde f ined . In t h is case no check is m adeaga ins t the negot ia ted pro f i le.

The read com m and re tu rns th e cur ren t se t t ings fo r each de f ined contex t .The tes t com m and re tu rns va lues suppo r ted as a comp ound va lue . If the M T suppo r tssevera l PDP types, the p arameter va lue ranges fo r each PDP typ e are retu rn ed on aseparate l ine.


< c i d >< c i d > : a num er ic param eter w h ich spec i f ies a par t icu la r PDP contex t .

 : a num er ic param eter w h ich spec i f ies the precedence c lass .

< d e la y >< d e la y > : a num er ic param eter w h ich sp ec if ies the de lay c lass .

< re l iab i l i t y>< re l iab i l i t y> : a num er ic param eter w h ich sp ec if ies the re l iab i l ity c lass .

 : a nu m er ic parameter w h ich spec i f ies the peak th rou ghp ut c lass .

< m e a n >< m e a n > : a num eric pa ram e ter w h ich spec if ies the mean th rough pu t c lass .


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I f a va lue is om i t ted fo r a par t icu la r c lass then t h is c lass is no t ch ecked.


AT +CGQMIN=1,1,4,5,2,31

OK

AT+CGQMIN=?

+CGQMIN: IP, (1-3), (1-4), (1-5), (1-9), (1-31)

+CGQMIN: PPP, (1-3), (1-4), (1-5), (1-9), (1-31)

OK

AT+CGQMIN?

+CGQMIN: 1,1,4,5,2,14

OK

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4 G PRS a t t a c h o r d e t a c h + C G A T T

C o m m a n dC o m m a n d Poss ib le Respon se (s )Poss ib le Respon se (s )+ C GAT T = [] OK

ERROR+ CGATT? +CGATT :

+ CGATT= ? + CGATT : (l is t o f suppo r ted s)


The execu t ion com m and i s used to a t tach th e M T to , o r detach the M T f rom, the GPRSserv ice. A f te r the com m and has com p leted , the M T rem a ins in V .25 te r com m and s ta te .I f the M T is al ready in th e requ ested s ta te , the com m and is ignored and th e OK responseis re tu rned. I f the requested s ta te cannot be ach ieved, an ERROR or +CM E ERRORresponse is re tu rned. Ex tend ed erro r responses are enab led by t he + CM EE com m and.

Any ac t ive PDP con tex ts w i ll be au tom a t ica ll y deac t i vated w hen th e a t tachm en t s ta techang es to de tached.

The read com m and re tu rn s the cur ren t GPRS serv ice s ta te .

The tes t com m and is used fo r request ing in fo rm at ion on the supp or ted GPRS serv ices ta tes .

Def ined Va luesDe f ined Va lues

< s t a t e >< s t a t e > : ind ica tes the s ta te o f GPRS a t tachm ent

q 0 detached

q 1 att ached

q Other va lues are reserved and w i l l resu l t in an ERROR response to thee x ec u t io n c o m m a n d .


AT +CGATT=1

OK

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5 PD P c o n t e x t a c t i v a t e o r d e a c t i v a t e+ C G A C T

C o m m a n dC o m m a n d Poss ib le Respon se (s )Poss ib le Respon se (s )+CGACT= [[,[,[,]]]]

OKERROR

+ CGACT? + CGACT: ,[ < C R > < L F > + C G AC T : ,[...]]

+ CGACT= ? + CGACT: ( lis t o f sup por ted s)


The execut ion com m and is used t o ac t iva te o r deact iva te the spec i f ied PDP contex t (s ).A f te r the com m and has com p leted , the M T rem a ins in V .25 te r com m and s ta te . I f anyPDP contex t is a l ready in th e requ ested s ta te , the s ta te fo r tha t contex t remainsunchanged .

I f the requ ested s ta t e fo r any spec i f ied contex t cannot be ach ieved, an ERROR or + CM E

ERROR response is retu rn ed. Ex tend ed er ro r responses are enab led by th e + CM EEc o m m a n d .

I f the M T is no t GPRS a t tached w hen the ac t iva t ion fo rm o f the comm and i s execu ted ,the M T f i rs t per fo rm s a GPRS a t tach and them a t tem pts to ac t iva te the spec i f iedcontex ts . I f the a t tach fa ils then the M T respon ds w i th ERROR or , if ex tended er ro rresponses are enab led , w i th t he approp r ia te fai lu re- to -a t tach er ro r m essage.

I f no < c id> s are spec i f ied the ac t iva t ion fo rm o f the com m and ac t iva tes al l def inedcon tex ts .I f no < c id> s are spec i f ied the deact iva t ion fo rm o f the com m and d eact iva tes al l ac t ivecon tex ts .

Tw o PDP con tex ts can be ac t iva ted th roug h W avecom so f tw a re.

The read com m and re tu rn s the cur ren t ac t iva t ion s ta tes fo r a ll the de f ined PDP contex ts .

The test com m and i s used fo r reques t ing in fo rma t ion on the supp o r ted PDP con tex tac t iva t ion s ta tes .


< s t a t e >< s t a t e > : ind ica tes the s ta te o f PDP contex t ac t iva t ionq 0 deact ivat edq 1 act ivatedq Other va lues are reserved and w i l l resu l t in an ERROR response t o th e

e x ec u t i on c o m m a n d .

< c i d >< c i d > : a num er ic param eter w h ich spec i f ies a par t icu lar PDP contex t .


AT +CGACT=1,1

OK

AT+CGACT?

+CGACT: 1, 1


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OK

AT+CGACT=?

+CGACT: (0-1)

OK

Be fo re a con tex t can be ac t iva ted , the M T m us t be a t tached to the GPRS netw o rk byper fo rm ing an au tom at ic GPRS at tach .

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6 En t e r d a t a s t a t e + C G D A T A

CC o m m a n do m m a n d Poss ib le Respon se (s )Poss ib le Respon se (s )+ C G D A T A = [ < cid> [, [,]]]] CONNECT

ERROR+ CGDATA = ? + CGDA TA: (l is t o f suppo r ted s)


The execu t ion com m and causes the M T to pe r fo rm w ha tever ac t ions a re necessary toestab l ish com m un ica t ion be tw een th e TE and th e netw o rk us ing on e o r more GPRS PDPtypes. Th is m ay inc lude per form ing a GPRS a t tach and on e or m ore PDP contex tac t iva t ions .

I f the c id va lue is no t de f ined to th e M T, the M T w i l l re tu rn an ERROR or + CM E ERRORresponse. Otherw ise, the M T issues the in te rm ed ia te resu l t code CONN ECT and en t ersV.25ter on l ine da ta s ta t e .

GPRS a t tachm ent and PDP contex t ac t iva t ion procedures m ay take p lace pr io r to o rdur ing the PDP s tartup i f they have no t a l ready been per fo rm ed us ing th e + C G A T T+ C G A T T an d+ C G A C T+ C G A C T c o m m a n d s .

I f con tex t ac t iva t ion takes p lace du r ing th e PDP s tar tup , one or m ore < c id> s m ay bespec i f ied in o rder to p rov ide the in fo rm at ion needed fo r the cont ex t ac t iva t ion request(s ).Dur ing each PDP s tar tup p rocedure the M T m ay have access to som e or a l l o f thefo llow ing in fo rm a t ion -

The M T m ay have a p r io r i know ledge , for exam p le, it m ay im p lem en t on ly onePDP type.

The TE m ay prov ide a PDP type and/or PDP address to th e M T dur ing in the PDPstar tup procedure .

I f any o f th i s in fo rm a t ion i s in con f l ic t , the com m and w i ll fa il .

An y PDP type and/or PDP address present in the above in fo rm at ion sha l l be comp aredw i th th e PDP type and/or PDP address in any con tex t de f in i t ions spec i f ied in thecom m and in the o rde r in w h ich the i r < c id>s appea r. Fo r a con tex t de f in i t i on to m a tch -

The PDP type m us t m a tch exac t l y .The PDP addresses are cons idered t o m atch i f t hey are ident ica l o r i f ei ther o r bo t h

addresses are un spec i f ied . For exam ple , a PPP NCP requ est spec ify ing PDP typ e = IPand no PDP add ress w ou ld cause the M T to search th rough the spec if ied con tex tde f in i t ions fo r one w i th PDP type = IP and any PDP address .

The contex t sh a l l be ac t iva ted u s ing th e m atched va lue fo r PDP type and a s ta t ic PDPaddress if avai lab le , togeth er w i th th e o ther in fo rm at ion found in t he PDP contex tde f in i t ion . If a s ta t ic PDP address is no t ava ilab le then a dyn am ic address is requ ested .

I f no i s g iven o r i f the re i s no m a tch ing con tex t de f in i t i on , the M T sha l l a t tem p t to

ac t iva te the con tex t w i th w ha tever in fo rma t ion i s avai lab le to the M T . The o ther con tex tparam eters sha l l be se t to th e ir de fau l t va lues .

I f the ac t iva t ion is successfu l , da ta t rans fer m ay proceed.

Af te r da ta t rans fer is com ple te, and th e layer 2 p ro t oco l te rm inat ion procedure hascom p leted success fu l ly , the V .25 te r comm and s ta te i s re-en te red and the M T re tu rns thef inal result code OK.

15/36


In the event o f an erroneous te rm inat ion or a fa i lu re to s ta r t up , the V.25 ter com m andsta te is re -en tered an d t he M T re turns the f ina l resu l t code NO CARRIER or , i f enab led ,+ CM E ERROR. At t ach , ac t iva te and o th er er ro rs m ay be repor ted .

The test com m and i s used fo r reques t ing in fo rm a t ion on the suppo r ted layer 2 p ro toco ls .Th is com m and m ay be used in bo th no rm a l and m odem com pa t ib i li t y modes .


< c i d >< c i d > : a nu m er ic param eter w h ich spec i f ies a par t icu lar PDP contex t d e f in i t ion .


AT+CGDATA=?

+CGDATA:

OK

AT +CGDATA=1

CONNECT

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7 G PRS m o b i le s t a t io n c la s s+ C G C L A S S

C o m m a n dC o m m a n d Poss ib le Respon se (s )Poss ib le Respon se (s )+ CGCLASS= [] OK

ERROR+ CGCLA SS? + CGCLA SS: + CGCLASS= ? + CGCLASS: ( lis t o f supp or ted s)


The set com m and is used to se t the M T to opera te accord ing to th e spec i f ied GPRSm obi le c lass . If th e requested c lass is no t supp or ted , an ERROR or +CM E ERRORresponse is retu rn ed.

The read com m and re tu rns th e cur ren t GPRS m obi le c lass .

The test com m and i s used fo r reques t ing in fo rma t ion on the suppo r ted GPRS m ob i leclasses.


< c la s s >< c la s s > : a s t r ing param eter w h ich ind ica tes the GPRS m obi le c lass (in descend ing ordero f func t iona l i ty )A c lass A (h ighest )B c lass BCG c lass C in GPRS on ly m odeCC c lass C in c i rcu i t sw i tched on ly m ode ( low est)Other va lues are reserved and w i l l resu l t in an ERROR response to th e set com m and.

I f the M T is GPRS a t tached w hen the set com m and i s issued w i th a = CCspec i f ied , a GPRS detach requ est sha l l be sent to th e ne tw ork .If t h e M T i s GSM a t t ac h ed w h e n t h e se t c om m a n d i s is s u ed w i t h a < c l as s > = C Gspec i f ied , a GSM detach request sha l l be sent t o the ne tw ork .

On ly c lasses CG and CC are suppor t ed by W avecom GPRS sof tw are Class C.


AT +CGCLASS=CG

OK

To go in GPRS c lass CGPRS c lass C m o d e

AT +CGCLASS=CC

OK

To go in GSMGSM m o d e

AT +CGCLASS=A

+CME ERROR: 150

Class chosen no t supp or ted .

AT+CGCLASS=?+ CGCL A SS: ("CG","CC")


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OK

AT+ CGCLASS?

+ CGCLASS: "CC"

OK

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8 S e le c t s e r v ic e f o r M O S M Sm e s s a g e s + C G SM S

C o m m a n dC o m m a n d Poss ib le Respon se (s )Poss ib le Respon se (s )+ C GS M S = [] OK

ERROR+ C GSM S? + C GSM S: + CGSM S= ? + CGSM S: ( lis t o f cur ren t ly ava ilab le

s)


The set com m and is used to spec i fy the serv ice or serv ice pre ference tha t t he M T w i l luse to send M O SM S messages .

The read com m and re tu rns t he cur ren t ly se lec ted serv ice or serv ice pre ference.

The tes t com m and is used fo r request ing in fo rm at ion on t he cur ren t ly ava i lab le serv icesand serv ice preferences.

GPRS SM S NO T SUPPORTED IN CURRENT VERSIONGPRS SM S NO T SUPPORTED IN CURRENT VERSION


< se rv ice>< se rv ice> : a nu m er ic param eter w h ich ind ica tes the serv ice or serv ice pre ference to beused

0 GPRS1 C ircu i t sw i tched2 GPRS pre fer red (use c i rcu i t sw i tched i f GPRS is no t ava i lab le )3 Ci rcu i t sw i tched pre fer red (use GPRS i f c i rcu i t sw i tched no t ava i lab le )

Other va lues are reserved and w i l l resu l t in an ERROR response to th e set com m and.


AT +CGSMS=0

OK

AT+CGSMS=?

+CGSMS=(0-3)

OK

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9 G PRS e v en t r e p o r t in g + C G EREP

Command Possible response(s)+CGEREP=[] OK

ERROR

+CGEREP? +CGEREP:

+CGEREP=? +CGEREP: (l i s t o f sup por ted s)


Set com m and enab les or d isab les send ing o f un so l ic ited resu l t cod es, +CGEV: XXX f romM T to TE in the case o f cer ta in events occu rr ing in the GPRS M T or the ne tw ork .

< m ode> con t ro ls th e p rocess ing o f un so li c ited resu l t codes spec if ied w i th in th isc o m m a n d .

Read com m and re tu rns the cu r ren t m ode and bu f fe r se t t ings

Tes t com m and retu rns th e modes and bu f fer set t ings suppo r ted by the M T ascom pound va lues.


< m o d e >< m o d e > :0 bu f fe r un so l ic ited resu l t codes in th e M T; i f M T resu l t code bu f fe r is fu l l , the o ldes tones can be d iscarded. No cod es are fo rw arded to th e TE.1 d iscard un so l ici ted resu l t codes w hen M T-TE l ink is reserved (e.g . in on- l ine da tam ode); o the rw ise fo rw a rd them d i rec t l y to the TE2 buf fe r un so l ic i ted resu l t codes in the M T w hen M T-TE l ink is reserved (e.g . inon- l ine da ta m ode) and f lush th em to th e TE w hen M T-TE l ink becom es ava i lab le;o the rw ise fo rw a rd them d i rect l y to the TE

W i th W avecom 's so f tw a re, a com b ina ison o f a l l modes i s imp lem en ted . W hen se rial l inkis avai lable, indicat ions are forw arded d irect ly to t he TE. If ser ia l l ink is reserved ( e.g. in

on- l ine da ta m ode ) , i f M T resu l t code bu f fe r is fu l l , the o ldes t on es can be d iscarded.

Def ined even tsDe f ined even ts

The fo l low ing u nso l ic i ted resu l t codes and t he cor respond ing events a re de f ined:

+ CGEV: REJECT < PDP_typ e> , < PDP_add r>+ CGEV: REJECT < PDP_typ e> , < PDP_add r>A ne tw o rk reques t fo r PDP con tex t act i vat ion occu r red w hen the M T w as unab le

to repor t i t to the TE w i th a + CRING unso l ic ited resu l t code and w as au t om at ica llyre jected.

+ C GEV: N W R EAC T < PD P_ty p e > , < PD P_a d d r > , [ < c i d > ]+ C GEV: N W R EAC T < PD P_ty p e > , < PD P_a d d r > , [ < c i d > ]The ne tw o rk has reques ted a con tex t reac t i vat ion . The < c id> t ha t w as used to

reac t iva te the con tex t i s p rov ided i f know n to the M T .

+ C G EV: N W D EAC T < PD P_ty p e > , < PD P_a d d r > , [ < c i d > ]+ C G EV: N W D EAC T < PD P_ty p e > , < PD P_a d d r > , [ < c i d > ]The ne tw o rk has fo rced a con tex t deac t iva t ion . The < c id> t ha t w as used to

ac t iva te the con tex t i s p rov ided i f know n to th e M T .

+ C G EV: M E D EAC T < PD P_ty p e > , < PD P_a d d r > , [ < c i d > ]+ C G EV: M E D EAC T < PD P_ty p e > , < PD P_a d d r > , [ < c i d > ]The m ob i le equ ipm en t has fo rced a con tex t deac t iva t ion . The tha t w as

used to ac t iva te the con tex t i s p rov ided i f know n to th e M T .

+ C GEV: N W D ET AC H+ C G EV: N W D ET AC H

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The netw ork has fo rced a GPRS detach. Th is im p l ies tha t a l l ac t ive contex t s havebeen deact ivated. These are not reported separate ly.

+ C GEV: M E D ET AC H+ C G EV: M E D ET AC HThe m ob i le equ ipm ent has fo rced a GPRS detach. Th is im p l ies tha t a l l ac t ive

contex ts have been deact iva ted . These are no t repor ted separa tely .

+ C GEV: N W C LASS < c las s >+ C GEV: N W C LASS < c las s >The netw ork has fo rced a chang e o f M S c lass . The h ighest ava i lab le c lass isrepor ted .

+ C GEV: M E CL ASS < c las s >+ C GEV: M E CL ASS < c las s >The m ob i le equ ipm ent has fo rced a change o f M S c lass . The h ighest ava ilab le

class is reported.

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1 0 G PRS n e t w o r k r eg i s t r a t i o n s t a t u s+ C G R E G

Command Possible response(s)+CGREG=[]

+CGREG? +CGREG: ,[,,]+CME ERROR:

+CGREG=? +CGREG: (l i s t o f sup por ted s)


The se t comm and con tro ls the present a t ion o f an un so l ic i ted resu l t code + CGREG:< s ta t> w hen < n> = 1 and th e re is a change in the M T 's GPRS ne tw o rk reg is t rat ions ta tus , or code + CGREG: [ ,< lac> , ] w hen < n> = 2 and the re i s a change o f thene tw o rk cel l.

The read com m and re tu rns th e sta tus o f resu l t code presenta t ion and an in t eger < s ta t>w h ich show s w he the r the ne tw o rk has cu r ren t l y ind icated the reg is t rat ion o f the M T .Loca t ion in fo rm a t ion e lemen ts < lac> and < c i> a re retu rned on ly w hen = 2 and M T is

reg is tered in th e ne tw ork .


< n >< n > :0 d isab le ne tw ork reg is t rat ion un so l ic ited resu l t code1 enab le ne tw ork reg is t ra t ion un so l ici ted resu l t code + CGREG: < s ta t>2 enab le ne tw ork reg is t rat ion and loca t ion in fo rm at ion un so l ic ited resu l t code+CGREG: [ ,< lac> , ]

< s t a t >< s t a t > :0 no t reg iste red , M E is no t cur ren t ly search ing a new opera tor to reg is ter to1 reg is tered , hom e ne tw o rk2 no t reg is tered , bu t M E is cur ren t ly search ing a new opera tor to reg is ter to3 reg is t rat ion den ied4 u n kn o w n5 reg is tered , roam ing

< l a c >< l a c > :s t r ing typ e; tw o by te locat ion area code in hexadec im al fo rm at .

< c i >< c i > :s t r ing type ; tw o by te ce ll ID in hexadec ima l fo rma t

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1 1 Re q u e s t G P RS IP s e r v i c e 'D '

C o m m a n dC o m m a n d Poss ib le Respon se (s )Poss ib le Respon se (s )D*[*]# CONNECT

ERROR


Th is comm and causes the M T to p e rfo rm w ha tever ac t ions a re necessa ry to estab l ishcom m un ica t ion be tw een th e TE and th e ex te rna l PDN.

The V.25 ter 'D ' (D ia l ) com m and causes th e M T to en ter th e V.25 ter on l ine da ta s ta te and ,w i th th e TE, to s ta r t the spec i f ied layer 2 p ro toco l . The M T sha l l retu rn CONNECT toconf i rm acceptan ce o f th e com m and pr io r to en ter ing the V.25 ter on l ine da ta s ta te . Nofu r t h er c o m m a n d s m a y f o ll ow o n t h e AT c o m m a n d l in e .

The de ta i led behav iour a f te r th e on l ine da ta s ta te h as been en tered is descr ibed br ie f ly inc lause 9 , fo r IP, of GSM 07.6 0 . GPRS a t tachm ent and PDP cont ex t ac t iva t ion proceduresm ay take p lace pr io r to o r dur ing th e PDP s tar tup i f they have no t a l ready b eenpe r fo rm ed us ing the + CGATT and + CGACT com m ands .

I f < c id> i s suppo r ted , i t s usage sha ll be the same as in the +CGDATA com m and . The+ CGDCONT, +CGQREQ, e tc . com m ands m ay then be used in th e m odem in i t ia li sat ionAT com m and s t r ing to se t va lues fo r fo r PDP type, APN, QoS etc

I f < c id> i s no t sup po r ted o r is suppo r ted bu t om i t ted , the M T sha l l a t temp t to ac t i vatethe con tex t us ing :(a) any in fo rm at ion prov ided b y th e TE du r ing th e PDP s tar tup procedure , e.g . the TE

m ay prov ide a PDP type and/or PDP address to the M T,o r , (b ) a p r ior i know ledge , e.g . the M T m ay im p lem en t on ly one PDP type ,or , (c ) us ing th e 'Em pty PDP type ' (GSM 04.0 8) . (No PDP add ress or APN sha l l be sent inth is case and on ly one PDP contex t subscr ip t ion record sha l l be present in the HLR fo rth is su bscr iber .)


< GPRS_SC_IP>< GPRS_SC_IP> : (GPRS Service Code for IP) a d ig i t s t r ing (value 98 ), w hich ident i f ies arequest to u se the GPRS w i th IP (PDP types IP and PPP)

< c i d >< c i d > : a d ig i t s t r ing w h ich spec i f ies a par t icu la r PDP contex t d e f in i t ion .


ATD*98*1#

CONNECT

ATD*98*2#

NO CARRIER

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1 2 N e t w o r k r eq u e s t e d PD P c o n t e x ta c t i v a t i o n

In th is m ode o f opera t ion , the M T behaves l ike an answ ering m odem and accep ts th enorm al V.25 ter com m ands assoc iated w i th answ er ing a ca l l. If GPRS-spec i f ic

con f igu ra t ion comm ands a re requ i red , they m ay be sen t t o the M T as pa r t o f the modemin i t ia li sat ion com m ands .The +CGAUTO com m and i s used to se lect m odem com pa t ib il it y m ode .

A u t o m a t i c r es p o n s e t o a n e t w o r k r e q u e st f o r PD P c o n t e x t a c t i v a t io n 'S 0 '

The V .25 te r 'S0= n ' (Au tom a t ic answ er) com m and m ay be used to tu rn o f f (n= 0 ) and on(n> 0) the au tom at ic response to a ne tw ork requ est fo r a PDP contex t ac t iva t ion .W hen the 'S0= n ' (n> 0 ) comm and i s rece ived , the M T sha l l at tem p t t o pe r form a GPRSat tach i f i t is no t a l ready a t tached. Fai lu re w i l l resu l t in ERROR be ing re tu rned to t he TE.Subsequen t l y , the M T w i ll announce a ne tw o rk reques t fo r PDP con tex t ac t iva t ion b yissu ing t he un so l ici ted resu l t code RING to th e TE, fo l low ed by th e in te rm ed ia te resu l tcode CONN ECT. The M T then en ters V.25 ter on l ine da ta s ta te and fo l low s the sam eprocedu re as i t w ou ld a f ter hav ing received a + CGAN S=1 w i th no < L2P> o r

values specif ied.NOTE. The 'S0= n ' (n= 0) com m and does no t per fo rm an au tom at ic GPRS detach.

M a n u a l a c c e p t a n c e o f a n et w o r k r e q u e st f o r PD P c o n t e x t a c t iv a t i o n 'A '

The V .25 te r 'A ' (An sw er) com m and m ay be used to accep t a n e tw o rk request fo r a PDPcontex t ac t iva t ion ann oun ced by the unso l ic i ted resu l t code RING. The M T respond sw i th CONN ECT, en t ers V.25 ter on l ine da ta s ta te and fo l low s the sam e procedu re as i tw ou ld a f ter hav ing received a + CGAN S=1 w i th no < L2P> o r va lues spec i fied . It i san e rro r to i ssue the 'A ' com m and w hen the re is no ou t s tand ing ne tw o rk reques t .

M a n u a l r e je c t i o n o f a n e t w o r k r e q u e s t f o r P D P c o n t e x t a c t i va t i o n 'H '

The V.25 ter 'H ' o r 'H0 ' (On-hook) com m and m ay be used to re jec t a ne tw ork requ est fo rPDP contex t ac t iva t ion announ ced by the unso l ic i ted resu l t code RING. The M Tresponds w i th OK. It i s an e r ro r to i ssue the 'H ' com m and w hen the re is no ou t s tand ingne tw o rk reques t .NOTE: Th is is an ex tens ion to the usage o f the 'H ' com m and tha t is descr ibed inITU-T V.25 ter .

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1 3 A u t o m a t i c r es p o n s e t o a n e t w o r kr e q u e s t f o r PD P c o n t e x t a c t i v a t i o n+ C G A U T O

Command Possible response(s)+ C G AU T O = []

OK

ERROR

+CGAUTO? +CGAUTO:

+ CGAUTO= ? + CGAUTO: (l is t o f suppo r teds)


The set com m and d isab les or enab les an au tom at ic pos i t ive response (au to-answ er) tothe receip t o f a Request PDP Contex t A c t iva t ion m essage f rom t he ne tw ork . I t a lsoprov ides contro l over th e use o f the V.25 ter bas ic com m ands 'S0 ', 'A and 'H ' fo r hand l ingnetw ork requ ests fo r PDP contex t ac t iva t ion . The se t t ing does no t a f fec t the issu ing o f

the u nso l ic i ted resu l t cod e RING or + CRING.

The tes t com m and retu rns va lues o f suppo r ted by the M T as a com pound va lue .

W hen the + CGAUTO= 0 com m and i s rece ived , the M T w i ll no t pe r fo rm a GPRS de tach i fi t i s at tached . Subsequen t l y , w hen the M T announces a ne tw o rk reques t fo r PDPcontex t ac t iva t ion by issu ing the un so l ici ted resu l t cod e RING or + CRING, the TE m aym anua l ly accep t o r re ject the request by i ssu ing th e +CGANS com m and o r m ay s im p lyigno re the netw o rk reques t .

W hen the +CGAUTO= 1 com m and i s received , the M T w i ll at tem p t to pe r fo rm a GPRSat tach i f i t is no t a l ready a t tach ed. Fa i lu re w i l l resu l t in ERROR or, i f enab led , + CM EERROR be ing retu rned to t he TE. Subsequen t l y , w hen the M T announ ces a ne tw o rkrequest fo r PDP contex t ac t iva t ion by issu ing the unso l ic i ted resu l t code RING or+ CRING to the TE, th is is fo llow ed by th e in te rm ed ia te resu l t code CONN ECT. The M Tthen en ters V.25 ter on l ine da ta s ta te and fo l low s the same procedure as i t w ou ld a f te rhav ing received a + CGANS= 1 w i th no < L2P> o r va lues spec i fied .


< n >< n > :0 tu rn o f f au tom at ic response fo r GPRS on ly1 tu rn on au tom at ic response fo r GPRS on ly2 m odem com pa t ib i li t y m ode , GPRS on ly3 m odem com pa t ib i li t y m ode , GPRS and c i rcu i t sw i tched ca ll s (de fau l t )

Fo r < n> = 0 GPRS ne tw o rk reques ts a re m anua l ly accep ted o r re jected by th e +CGANSc o m m a n d .

Fo r < n> = 1 GPRS ne tw o rk reques ts a re au tom a t ica ll y accep ted acco rd ing to th edescr ip t ion above.

For < n> = 2 , au tom at ic acceptance o f GPRS netw ork requ ests is contro l led by th e 'S0 'com m and. M anua l contro l uses the 'A ' and 'H ' com m ands, respect ive ly , to accept andre jec t GPRS requ ests . (+ CGANS m ay a lso be used.) Incom ing c i rcu i t sw i tched ca l ls canbe ne ithe r m anua l ly n o r au tom a t ica ll y answ ered .

25/36


For < n> = 3 , au tom a t ic accep tance o f bo th GPRS ne tw o rk requests and incom ing c i r cu i tsw i tched ca l ls is contro l led by t he 'S0 ' com m and. M anua l contro l uses the 'A ' and 'H 'com m ands, respect ively , to accept an d re jec t GPRS requests . (+ CGANS m ay a lso beused.) Ci rcu i t sw i tched ca l ls a re hand led as descr ibed e lsew here in th is sp ec if icat ion .

NOTE. In c lass C GPRS the m odem can t receive GPRS and GSM incom ing ca l lss imu l taneous ly .


AT + C G AU T O = ?+ CGAUTO: (0 -2 )OK

AT + C G AU T O ?+ CGAUTO: 2OK

AT + C G AU T O = 0OK

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1 4 M a n u a l r e s p o n s e t o a n e t w o r kr e q u e s t f o r PD P c o n t e x t a c t i v a t i o n+ C G A N S

Command Possible response(s)+ C G A N S = [,[] ]

OK

ERROR

+ CGAN S=? + CGAN S: (l is t o f suppo r teds), ( l is t of supported

s)


The execu t ion com m and requests the M T to respond to a ne tw o rk request fo r GPRSPDP contex t ac t iva t ion w h ich h as been s ign a l led to th e TE by t he RING or + CRING:un so l ic i ted resu l t code. The < response> p arameter a l low s the TE to accept o r re jec t th erequest .

I f < response> is 0 , the requ est is re jec ted and the M T re turns OK to th e TE.I f < response> i s 1 , the fo llow ing p rocedu re i s fo l low ed by the M T .

PDP contex t ac t iva t ion p rocedures sha l l take p lace pr io r to o r du r ing th e PDP s tartu p .One or m ore s m ay be spec if ied in o rder to p rov ide the va lues needed fo r thecontex t ac t iva t ion request .

Dur ing the PDP s tartu p procedure the M T has the PDP typ e and t he PDP addressp rov ided by the ne tw o rk in th e Request PDP Con tex t Ac t i va t ion m essage. The M T m aya lso have som e or a ll o f the fo l low ing in fo rm at ion -

The M T m ay have a p r ior i know ledge , for exam p le, it m ay imp lemen t on ly onePDP type.

The comm and m ay have p rov ided an < L2P> pa ram e ter va lue .The TE m ay p rov ide one o r bo th o f PDP type and PDP add ress to the M T in the

PDP s ta rtup .I f any o f th i s in fo rm a t ion i s in con f l ic t , the comm and w i ll fa il .

I f one o r m ore < c id> i s g iven th en an a t temp t sha l l be made to iden t i fy an app rop r ia tecon tex t de f in i t i on by m a tch ing the PDP type and PDP add ress in th e ne tw o rk reques tw i th th e PDP type and PDP address in each o f the spec if ied cont ex t de f in i t ions (in theo rder in w h ich the ir < c id>s appea r in the comm and) as fo llow s -

The PDP type m us t m a tch exac t l y .The PDP addresses are cons idered t o m atch i f t hey are ident ica l o r if th e address

in the cont ex t de f in i t ion is unspec i f ied .

The contex t sha l l be ac t iva ted us ing the va lues fo r PDP type and PDP address prov idedby th e netw o rk , toge the r w i th the o the r in fo rm a t ion found in the PDP con tex t de f in i t i on .An APN m ay o r m ay no t re requ i red , depend ing on the app l ica t ion .I f no < c id> i s g iven o r if the re i s no ma tch ing con tex t de f in it i on , the M T w i ll at tem p t toac t iva te the contex t us ing the va lues fo r PDP type and PDP address prov ided by thene tw o rk , toge the r w i th any o ther relevan t in fo rm a t ion know n to the M T . The o thercontex t p arameters w i l l be se t to the i r de fau l t va lues .I f the ac t iva t ion is successfu l , da ta t rans fer m ay proceed.Af te r da ta t rans fer is com ple te, and th e layer 2 p ro t oco l te rm inat ion procedure hascom p leted success fu l ly , the V .25 te r comm and s ta te i s re-en te red and the M T re tu rns thef ina l resu l t code OK

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In the event o f an er roneous te rm inat ion or a fai lu re to s ta r tup , the V.25 t er comm andsta te is re -en tered an d t he M T re turns the f ina l resu l t code NO CARRIER or , i f enab led ,+ CM E ERROR. At tach , ac t iva te and o t her e r rors m ay be repor ted . It is a lso an er ro r toissue the + CGAN S com m and w hen the re i s no ou ts tand ing ne tw o rk reques t .

Th is com m and m ay be used in bo th no rm a l and m odem com pa t ib i li t y modes .


< r e s p o n s e >< r e s p o n s e > : i s a num eric pa rame te r w h ich spec if ies how the reques t shou ld b eresponded to .0 re ject th e request1 accept and request tha t the PDP contex t be ac t iva tedI f < response> is om i t ted i t is assum ed to be 0 . Other va lues are reserved and w i l l resu l tin th e ERROR respon se.

< c i d >< c i d > : a num er ic param eter w h ich spec i f ies a par t icu la r PDP contex t d e f in i t ion .


+ CRING: GPRS "IP", "12 2.4 1.7 4.2 38 "

A T + C G A N S = 1CONNECT

A T + C G A N S = ?+ C GAN S= (0 - 1 )OK

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1 5 S h o w PD P a d d r e s s + C G PA D D R

Command Possible response(s)+CGPADDR=[ [,

[,]]]

+CGPADDR: ,

[+CGPADDR: ,

[...]]

+CGPADDR=? +CGPADDR: (list of defined s)


The execut ion com m and re tu rn s a l is t o f PDP addresses fo r the spec i f ied contex tident i f iers.

The tes t com m and re tu rns a li s t o f def ined < c id>s

D e f in e d v aDe f ined va lueslues

< c i d >< c i d > : a num er ic param eter w h ich spec i f ies a par t icu lar PDP contex t d e f in i t ion . I f no< c id> is spec i fied , th e addresses fo r a l l de f ined con tex ts a re re tu rned.

< PDP_address>< PDP_add ress> : a s t r ing th a t ident i f ies the M T in the address space app l icab le to th ePDP. The address m ay be s ta t ic o r dynam ic . For a s ta t ic address, i t w i l l be the one se tby the + CGDCONT comm and w hen the con tex t w as def ined . Fo r a dynam ic add ress i tw i l l be the one ass igned dur ing t he las t PDP contex t ac t iva t ion tha t used the contex tde f in i t ion re fe r red to b y < c id> . < PDP_address> is om i t ted i f none is ava ilab le.


AT + C G PAD D R = 1+CGPADDR=1 , "107 .210 .5 .4 "

OK

AT + C G PAD D R = ?+CGAPDDR= (1 -32 )OK

AT + C G PAD D R+CGPADDR: 1,

+CGPADDR: 2,"10.3.73.151"

+CGPADDR: 3,

+CGPADDR: 4 ,

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1 6 C e l l u l a r r e s u l t c o d e s + C RC

D e s c r ip t i o n :D e s c r ip t i o n :

This com m and enab les a m ore de ta iled r ing in d ica t ion , in case o f incom ing ca l l (vo ice or

da ta) . Ins tead o f the s t r ing RING , an ex tend ed s t r ing is used to ind ica te w h ich typ e o fcal l is r ingin g (e.g. + CRING: VO ICE).These ex tend ed ind ica t ions are :

+CRING: ASYNC for asynchronous transparent

+CRING: REL ASYNC for asynchronous non-transparent

+CRING: VOICE for normal speech.

+CRING : FAX for fax calls

New ind ica t ion fo r GPRS is :- GPRS < PDP_typ e>, < PDP_addr> [ , ] (GPRS netw ork requ est fo r PDP

contex t ac t iva t ion).

< PDP_type> and < PDP_addr> are as de f ined in th e + C G D C O N T+ C G D C O N T com m and . The op t iona l< L2P> p roposes a layer 2 p ro toco l to use be tw een th e M T and th e TE. It is de f ined int h e + C G D A T A+ C G D A T A com m and . I f the M T is unab le to announ ce to the TE the ne tw o rk 'srequest ( fo r exam ple i t is in V.25 ter on l ine da ta s ta te ) the M T sha l l rejec t th e requ est . Noco r respond ing unso l ic i ted resu l t code shal l be issued w hen th e M T re tu rns to ac o m m a n d s ta te.


+ CRING: GPRS "IP", "12 3.4 5.6 3.2 6"

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1 6 S e r v ic e r e p o r t i n g c o n t r o l + C R

D e s c r ip t i o n :D e s c r ip t i o n :

This com m and enab les a m ore de ta iled serv ice repor t ing , in case o f da tai n c o m i n g o r o u t g o i n g c a lli n c o m i n g o r o u t g o i n g c a ll . Be fore send ing th e CONNECT response to t he app l ica t ion ,the GSM m odu le w i l l p rec ise th e type o f da ta connect ion tha t have been es tab l ished.These report t ypes are :

+CR: ASYNC For asynchronous transparent

+CR: REL ASYNC For asynchronous non-transparent

New ind ica t ion fo r GPRS is : GPRS [< L2P> ]The Opt iona l < L2P> p roposes a layer 2 p ro toco l to u se be tw een th e M T and the TE. It isde f ined in the En ter GPRS Data M ode (+ CGDA TA) comm and .

Sy n ta xSy n ta x

C om m a n d s y n tax : AT + C R

Command Possible responses

AT+CR=0Note : Ex tend ed repor ts d isab led

OKNote : Com m and va l id

A T + C R = 1Note : Ex tend ed repor ts enab led


Ex a m p l eEx a m p l e+ CR: GPRS

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1 7 Ex t e n d e d e r r o r r e p o r t + C EER

D e s c r i p t i o n :

This com m and g ives the reason o f the ca ll release w hen th e las t ca ll setup(or ig ina t ing or answ er ing ) fa i led .

New ind ica t ion fo r GPRS is th e reason o f the las unsuccessfu l PDP contex t

ac t iva t ion and th e las t GPRS detach or PDP contex t ac t iva t ion .

S y n t a x :

Com m and syn tax : AT+ CEER

C o m m a n dC o m m a n d Possible responses

A T D 1 2 3 4 5 6 7 8 9 ;Note : Outg o ing vo ice cal l

NO CARRIERNote : Ca ll se tup fa i lu re

AT+ CEER

Not e : Ask for reason of re lease

+ CEER : Erro r < xxx >

OKNote : is the cause in fo rm a t ion e lem ent va lues fo rm GSMrecomm andat ion 04 .08 or spec i f ic Ca ll accepted

The cause in fo rm a t ion e lem en t f rom GSM 04 .08 i s g iven be low in chap te r 18 .4 fo rspecif ic GPRS fa i lure causes.The NO CA RRIER ind ica tes tha t the A T+ CEER in fo rm at ion is ava i lab le fo r a fai lu red iagnost ic .

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1 8 PD P C o u n t e r s In f o s + C G C O U N T ERS

D e s c r i p t i o n :

This com m and enab le o r d isab le th e spont aneous send ing o f the las t PDPdeact iva ted cou nters . Theses counters a re re la ted to conn ect ion t im e o f a PDP cont ex t o rda ta vo lum es sent an d received dur ing a PDP contex t l i fe ( ie be tw een is ac t iva t ion and

deact ivat ion). NOT IM PLEM ENTED IN CURRENT VERSIONNOT IM PLEM ENTED IN CURRENT VERSION

S y n t a x :

Com m and syn tax : AT+ CGCOUNTERS

AT+CGCOUNTERS=0Note : PDP Coun ters in fos d isab led


AT+CGCOUNTERS=1Note : PDP Coun ters In fos enab led


AT+ CGCOUNTERS= ? + CGCOUNTERS: (0 -1 )

AT+ CGCOUNTERS?Note : Th e las t PDP coun ters in fos inm e m o r y

+ CGCOUNTERS: < c id> , < PDP Con tex tT ime> , ,

Ex a m p l eEx a m p l e+ CGCOUNTERS: < c id> , , , < Da ta OUT>

Def ined Va luesDe f ined Va lues< PDP Con tex t T im e> : du ra t ion be tw een th e act i va t ion and deac t i vat ion o f the PDPcontex t< Da ta IN> : da ta vo lum e rece ived by the M S< D a ta OU T > : d a ta v o lu m e se n t b y t h e M S

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1 9 G PRS -r e la t e d e r r o r s + C M E ERRO R :< e r r o r >

1 9 .1 Er r o r s r e la t e d t o a f a i l u r e t o p e r f o r m a n A t t a c h

Num eric Tex t103 Il legal M S (#3 )106 I ll ega l M E (# 6 )10 7 GPRS serv ices no t a l low ed (#7)1 1 1 PLM N n o t a ll ow e d (# 1 1 )112 Loca t ion a rea no t a llow ed (#1 2 )113 Roam ing no t a llow ed in th is locat ion a rea (#1 3 )

(Va lues in p arenth eses are GSM 04.0 8 cause codes.)

1 9 .2 Er r o r s r e la t e d t o a f a i lu r e t o A c t i v a t e a C o n t e x t

Num eric Tex t132 serv ice op t ion no t suppo r ted (#3 2 )13 3 requested serv ice op t ion no t sub scr ibed (#33 )13 4 serv ice op t ion tem porar i ly ou t o f o rder (#34 )14 9 PDP auth ent ica t ion fa i lu re

(Va lues in p arenth eses are GSM 04.0 8 cause codes.)

1 9 .3 O t h e r G P RS e r r o r s

Num eric Tex t15 0 inva l id m ob i le c lass14 8 un spec i f ied GPRS error

Other va lues in the range 10 1 - 1 50 are reserved fo r use by GPRSAlso a l l o ther va lues be low 25 6 are reserved

2 0 S p e c i f i c G PRS Fa i lu r e C a u s e f o r+ C E E RNum eric Tex t

224 M S reques ted de tach225 NW K reques ted De tach

22 6 Unsu ccessfu l a t tach cause NO SERVICE22 7 Unsu ccessfu l a t tach cause NO ACCESS22 8 Un successfu l at tach cause GPRS SERVICE REFUSED229 PDP deact i va t ion reques ted by Nw k23 0 PDP deact iva t ion cause LLC l ink ac t iva t ion fa i led231 PDP deact i va t ion cause NW K reac t iva t ion w i th same T I232 PDP deac t i vat ion cause GM M abo r t23 3 PDP deact iva t ion cause LLC or SNDCP fa i lu re234 PDP unsuccess fu l ac t iva t ion cause GM M e rro r23 5 PDP un successfu l ac t iva t ion cause NW K re jec t23 6 PDP un successfu l ac t iva t ion cause NO NSA PI ava i lab le


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23 7 PDP un successfu l ac t iva t ion cause SM re fuse238 PDP unsuccess fu l ac t iva t ion cause M M I igno re


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2 1 Fu l l A T c o m m a n d s e x a m p l e s

2 1 .1 A c t i v a t i o n o f a n IP PD P c o n t e x t

AT +CGDCONT=1, "IP", "internet"; +GCDCONT=2, "IP", "abc.com"

OK

ATD*98*1#

CONNECT

Other exam ple :

AT +CGCLASS=CG

OK

+CGREG: 1

AT +CGDCONT=1, "IP", "internet"

OK

AT +CGQREQ=1,1,4,5,2,14

OK

AT +CGQMIN=1,1,4,5,2,14

OK

AT +CGATT=1

OK

AT +CGACT=1,1

OK

AT +CGDATA=IP,1

CONNECT

.

Data transfert

.


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+CGEV: NW DETACH

2 1 . 2 N e t w o r k r eq u e s t

AT + C G AU T O = 0OK

+ CRING: GPRS "IP", "21 1.4 5.8 9.1 52 "

A T + C G A N S = 1CONNECT

.Data t rans fert.

Documents

At Commands for GPRS_1.3