How to configure SIP using STC ALP

Spirent Test Center
How to configure SIP using STC ALP
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1. Introduction to SIP
The Session Initiation Protocol (SIP) is an application-layer control protocol that can
establish, modify, and terminate sessions such as Internet telephony calls and multimedia
conferences. In the Spirent TestCenter implementation, voice data is carried in Real-time
Transfer Protocol (RTP) data streams over UDP.
The Spirent TestCenter SIP Base Package can emulate thousands of telephone calls per
port.
2. Configuring SIP
1) In the system tree at the left of the Test Configuration window, select Devices under a
port node or All Devices. If the SIP tab is not available, use the Technology Selector to
enable it.
2) Reserve and configure one or more test ports.
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3) Create a block of devices using the Create Devices Wizard.
4) In the Application Layer Protocols step, select the Launch Application Layer Wizard
checkbox. The Application Layer Wizard automatically appears after the emulated
devices are created.
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5) In the Application Layer Wizard, configure the SIP UA call pairs. Alternatively, you can
also bring up this wizard by selecting Wizards in the main toolbar, expanding the
Traffic tree, and then selecting Application Layer Wizard.
6) Create the SIP UA profile. Click the All Profiles node in the system tree, and then click
the SIP User Agent tab to add profiles for SIP.
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7) Create the Load profile. Click the All Profiles node in the system tree, and then click
the Load Profiles tab to add load profiles
8) Run the test. Click the All Devices node in the system tree. Click the SIP tab, select the
device to test, and then run the test as follows:
Click the (Register User) button to register the UAs
Click the (Cancel Register) button to cancel the Register command
Click the (Start Call) button to start call sessions between the UAs
Click the (Stop Call) button to stop the calls in progress
Click the (Unregister User) button to unregister the already-registered UAs
9) View the results. If Results Browser is not currently displayed, use View > Results
Browser to bring up Results Browser, which displays real-time test results.
10) Click Change Result View > Select View > Application Layer Protocols > SIP > Port
Results for port statistics. See SIP Port Results for a description of the results, or click
Change Result View > Select View > Application Layer Protocols > SIP > UA Results
for UA statistics. See SIP UA Results for a description of the results.
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