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www.sunrisetelecom.com Technology Overview SS7 is a globally adopted protocol for out-of-band signaling systems, and supports critical applications such as: • interaction with network databases • mobile services • network maintenance and administration • advanced call features such as call waiting, call forwarding, three-way calling, congestion and priority management, toll-free applications and toll services • database information exchange between network elements and wireless services such as wireless roaming and mobile subscriber authentication The network elements involved in SS7 networks, such as SSPs (Signaling Switching Points), STPs (Signaling Transfer Points) and SCPs (Signaling Control Points) are usually connected in a redundant topology to ensure signaling integrity and availability even if one or more signaling links fails. SUNRISE TELECOM SS7 Simulation & Testing Simulation Suite for SS7 Calls & Traffic Generation Application Note Sunrise Telecom SS7 Simulation Platform Solutions SS7 is now merging with TCP/IP to allow integration between traditional telephony and Internet-Intranet networks by transporting voice and video in IP packet-based format. The Sunrise Telecom Solution Sunrise Telecom has developed a comprehensive set of emulation suites to test different protocols for PSTN including ISDN, SS7, and Analog. This Application Note addresses the SS7 simulation suite. The current hardware platforms that support the SS7 Simulation suite are: • NeTracker® / 3GMaster® 1000-DX and 6000-QX SS7 Simulation Suite In contrast to other protocol analyzers on the market, Sunrise Telecom’s solutions offer not only full-featured protocol analysis, but integrated SS7 simulation as well. NeTracker & 3GMaster

SS7 Simulation

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Page 1: SS7 Simulation

www.sunrisetelecom.com

Technology Overview

SS7 is a globally adopted protocol for

out-of-band signaling systems, and

supports critical applications such as:

• interaction with network databases

• mobile services

• network maintenance and

administration

• advanced call features such as call

waiting, call forwarding, three-way

calling, congestion and priority

management, toll-free applications

and toll services

• database information exchange

between network elements and

wireless services such as wireless

roaming and mobile subscriber

authentication

The network elements involved in

SS7 networks, such as SSPs (Signaling

Switching Points), STPs (Signaling

Transfer Points) and SCPs (Signaling

Control Points) are usually connected

in a redundant topology to ensure

signaling integrity and availability even

if one or more signaling links fails.

SUNRISE TELECOM

SS7 Simulation & TestingSimulation Suite for SS7 Calls & Traffic Generation

Application Note

Sunrise Telecom

SS7 Simulation

Platform Solutions

SS7 is now merging with TCP/IP to

allow integration between traditional

telephony and Internet-Intranet

networks by transporting voice and

video in IP packet-based format.

The Sunrise Telecom Solution

Sunrise Telecom has developed a

comprehensive set of emulation suites

to test different protocols for PSTN

including ISDN, SS7, and Analog.

This Application Note addresses the SS7

simulation suite.

The current hardware platforms that

support the SS7 Simulation suite are:

• NeTracker® / 3GMaster® 1000-DX and

6000-QX

SS7 Simulation Suite

In contrast to other protocol analyzers

on the market, Sunrise Telecom’s

solutions offer not only full-featured

protocol analysis, but integrated SS7

simulation as well.

NeTracker & 3GMaster

Page 2: SS7 Simulation

� SS7 Simulat ion & Test ing

This allows the user to simulate realistic traffic to run over

the network (or equipment) being tested while at the same

time monitoring all the traffic and performing measure-

ments such as call tracing, protocol decoding, traffic statis-

tics, Call Details Record (CDR) generation, network traffic

analysis and even performance response measurements.

Supported Protocols

The suite supports the following protocols:

• ITU/ETSI ISUP

• ANSI ISUP

• China ISUP

General Features: capabilities

NeTracker, 3GMaster and STT-MSA platforms support the

following features:

• From 1 to 3� E1/T1 trunks

• From 31 to 99� simultaneous real speech calls

• Up to 3� programmable Traffic Destinations

(OPC-DPC couples)

• SP-to-SP simulation

• 3� programmable linksets

• �56 signaling links per test

General Features

Configuration

Thanks to their intuitive and easy-to-use GUIs, configura-

tion of point codes, signaling links, link-sets, called/calling

numbers and other parameters necessary to simulate SPs on

the NeTracker or STT-MSA takes just a few minutes, rather

than hours.

The SS7 simulation suite supports the following features:

• Programmable Phone Numbers per Traffic Destination,

on external files

• National and International call profiles

• Programmable Release

Cause Codes

• Selectable CIC as Incom-

ing, Outgoing or Bi-direc-

tional

• Sequential or random use

of CIC and Phone Numbers

• Programmable number of

calls per second (CPS) per

Traffic Destination

• Programmable ANSI Carrier Identification Code

- Symbolic names for signaling links and for linksets

• Programmable Call Profiles with:

- Traffic type: either Terminated or Originated Calls or

both

- Call duration

- Idle time between Calls

- Calls per second

- Enable/Disable Service Script function (to generate

audio traffic)

• Random selection of activation-deactivation time

• User-programmable parameters for the main signaling

messages

• Selectable incoming call behavior

Simulation Modes

The following simulation modes are available:

• SP Simulation: generates from one to more than two

millions ISUP calls per hour to test / stress the signaling

elements in an SS7 network. The equipment is well-

suited to test the System under Test (SuT) under virtually

any signaling traffic load condition.

• SP Simulation with Bearer channels (Trunk Tester): allows

testing over the signaling and the voice (TDM) channels

by sending pre-recorded .wav files over the time slots

used as traffic channels or used for sending/receiving

tones. User can select and program the Bearer channels.

This simulation mode supports from 350,000 to over

1,700,000 calls (with speech) per hour, depending on call

duration and the QoS testing performed.

Traffic model setup

Example of a complex scenario

Page 3: SS7 Simulation

3www.sunrisetelecom.com

Sending Voice: service script function

The Service Script function allows users to generate voice

traffic using pre-recorded .wav files or customized audio

files on the PCM, to simulate real voice conversation or

tones (DTMF) generation/reception. The same audio file can

be transmitted several

times in the same audio

call. Audio files can also

be transmitted and re-

ceived back for voice path

testing. Voice samples are

based on G.711. DTMF

tones can be transmitted

and received for testing

automated voice services.

Intrusive QoS Measurement

The Service Script also allows

intrusive Quality of Service measurements.

Loop-back voice calls are generated so that audio files are

sent and then received back.

Comparing the source audio files and received audio files,

it is possible to evaluate the voice quality using the PESQ

algorithm thus providing a MOS score for each call.

Non-Intrusive QoS Measurement

The NiQA (Non-intrusive Quality Assessment) algorithm is

designed to assess the listening quality of live customer

traffic. It is also possible to measure and analyze voice

impairments over G.711 voice streams into PCM time slots.

SS7 Simulation Results

When the simulation is running, the SS7 simulation suite

provides a unique set of analysis tools that includes:

Trace

Protocol Trace with full message decoding, custom trace

and graphical ladder diagrams.

Call Detail Record

CDRs are provided for each call generated and/or received.

The CDR-to-frame function automatically recovers all the

related signaling frames and shows the entire call flow in a

graphical format while the Frame-to-CDR function auto-

matically recovers the CDR related to a selected signaling

message. Audio Playback function is available for each call

for which the recording was enabled.

Statistics

A complete set of statistics (in tabular and graphical for-

mats) covers all the main protocol events:

• Signaling messages: a dedicated statistic is provided for

every signaling protocol stack (MTP�, MTP3, ISUP)

• Calls: a dedicated statistic allows for call completion

analysis

• Disconnection causes: several dedicated statistics provide

reasons why some calls or sessions were not successfully

established

• Signaling links: dedicated statistics provide information

on signaling link utilization and physical layer alarms.

Graphical display shows status of all signaling links,

whether in-service

or out-of-service.

• QoS: statistics on

jitter and MOS

scores are based

on programmable

thresholds

Example of a script

A CDR and its frames

Statistics and charts

Page 4: SS7 Simulation

© �006 Sunrise Telecom Incorporated. All rights reserved. Specifications subject to change without notice. All product and company names are trademarks of their respective corporations.

Sunrise Telecom San Jose, Modena, and Taiwan facilities are ISO 9001 certified. Do not reproduce, redistribute, or repost without written permission from Sunrise Telecom. REV.�0� July �008

For more information or a directory of sales offices: [email protected] www.sunrisetelecom.com

Signal Analyzer

The Signal Analyzer Package allows post analysis of the

audio files recorded over the unit. The package includes:

• Complete signal spectrum analysis

• Signal comparison capabilities

• 3D signal represen-

tation

• Scripting language

for programming

analysis

Analysis Tools: Filters And Triggers

Filters are available for both Trace and CDRs. Any number

of filters with multiple conditions can be set. Triggers allow

creation of an advanced trap system that combines proto-

col events, counters and timers. Triggers are easily config-

ured with a graphical editor.

Applications

The SS7 ISUP Simulation suite has several potential ap-

plications for product designers, manufacturers and service

providers. The main applications include:

• NGN switch and Gateway installations

• Equipment in production environments

• Call Completion analysis

• Call Route testing

• Verification of telephone-matrix: SPs or PBX

• Testing of VoIP, CTI and SS7 Gateways

• Perform end-to-end QoS testing by running PESQ algo-

rithms over the sent and received speech files

Ordering Information

Suites and Protocol Packages

Part Number Details

OPT-SS7-TT Signaling Point Emulator with ISUP Call Simulation with Voice Traffic Generation over the Bearer channels. Includes the service script environment to create interac-tive tones and audio files send and receive sequences

Options

Part Number Details

OPT-PESQ Intrusive QoS Analysis based on ITU P.862 (PESQ) algorithm

OPT-NiQA Non-Intrusive Impairments Measurement and Analysis over PSTN (TDM flows) and VoIP (RTP flows) with an algorithm based on Psytechnics’ technology used in ITU P.563

OPT-SIG-AN Signal Analyzer Package for post analysis of the audio files recorded over the unit

All other suites, protocol packages, options & accessories:

Please contact your local Distributor or Sales Representative.

Signal Analyzer