1

Build a SIP of Environment

Speaker: Yi-Ji JhengDate: 2007.10.03

Outline

Test SIP of Environment

Direct call

Proxy call

2

TEST SIP OF ENVIRONMENT

3

Preface

Can to build up a Server is not point

It’s very important to know how it work and how I setup it for our need and maintain it later

Otherwise, it may change (evil tools)

4

Direct call mode

5

SoftPhone A SoftPhone BPC

SIP signal

Talk

Proxy Call mode

6

SIP Server

SoftPhone A SoftPhone B

VMware

PC

Talk

SIP signal

Requirement

Softphones X_lite-v2.0

X_lite-v3.0 do not support network configure (direct call)

SJphone-1.60

SIP Server ser-0.9.6_src.tar.gz

7

DIRECT CALL

8

Environment

9

X-Lite SJPhone

Listen on <ip>:5060Listen on <ip>:50600

PC

Number 1000

SIP signal

Setup SJPhone

10

11

12

13

Setup X-Lite

14

System Settings / SIP Proxy / Default

Enables : Yes

Display Name : 1000 Username : 1000 Authorization User :

1000

Password : 1000

Register : Nerver Direct Dial IP : Yes

15

System Settings / Network Auto Detect IP : No

Listen on IP : <IP>

Listen SIP Port : 50600

16

Test basic of actions

SJPhone calls to X-Lite X-Lite hangs up phone SJPhone hangs up phone *

X-Lite calls to SJPhone * X-Lite hangs up phone SJPhone hangs up phone

17

Phenomenon and Questions

Listen some quarrel voice

Ethereal cannot catch packet

Some action cannot run (previous slides that mark “*”)

18

SJPhone Bugs

Occur when two softphones in the same PC

SJPhone calls to X-Lite when SJPhone hangs up phone Via part didn’t have branch

X-Lite calls to SJPhone c part in SDP (c : IN IPv4 127.0.0.1)

19

Try again

Install SJphone 1.65

SJPhone calls to X-Lite X-Lite hangs up phone SJPhone hangs up phone

X-Lite calls to SJPhone X-Lite hangs up phone SJPhone hangs up phone

20

PROXY CALL

21

Enviroment

22

SIP Server

X-Lite SJPhone

VMware

PC

Number 1000 Number 2000

SIP signal

Listen on <ip>:5060Listen on <ip>:50600

Ethereal

Install SIP Server

Use Winscp upload SER on the Linux Usually put it in /usr/src

Use Pietty connect to Linux #cd /usr/src #tar zxvf ser-0.9.6_src.tar.gz #make #make modules #make install

Can see /ser-0.9.6/INSTALL23

Start SIP Server

After install, you can see /usr/local/etc/ser/ser.cfg /usr/local/sbin/ser

#ser Must to check

Did SER binding right ?? Did SER already executed ??

24

Setup X-Lite

System Settings / SIP Proxy / Default Domain/Realm : <Server IP> SIP Proxy : <Server IP> Register : Always Direct Dial IP : No

Reboot X-Lite

25

Setup SJPhone

26

27

28

29

30

31

Check Softphones really register on SER

#serctl ul show “serctl –h” to see more

32

Setup Ethereal

33

34

35

Ethereal filter command

Only see someone ip.addr eq <ip>

Protocol type arp 、 icmp 、 udp 、 tcp 、 rtp 、 sip

Logic eq 、 and 、 or == 、 && 、 ||

36

Stop or Restart Ethereal

37

Save file

38

Careful

Catch packets in Switch may have some questions

Switch v.s. Hub

Can select “Capture packets in promiscuous mode” to solve some questions

39

Call flow of actions

REGISTER

Call SJPhone(2000) calls to X-Lite(1000) X-Lite(1000) calls to SJPhone(2000)

40

REGISTER

41

UA SIP Server

REGISTER

200 OK

REGISTER

200 OK

0 Bindings

1 Bindings

Un-Register 0 bindings expire=0 with contact Register 1 bindings (no)expire with contact

N bindings N number of contacts

Call

42

INVITE

100 Trying

UASUAC SIP Server

INVITE

100 Trying

180 Ringing

200 OK

180 Ringing

RTP

BYEBYE

Dialog

transaction

transaction

200 OK

200 OK200 OK