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Cisco BTS 10200 Softswitch Troubleshooting Guide, Release 5.0.x
OL-8723-19
Chapter 15 Diagnostic Tests
PSTN Trunk Testing
Cisco BTS 10200 Terminating Test Line
This section discusses the following Cisco BTS 10200 terminating test line information:
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Function
The TTL terminates all test calls. The TTL may be a responder capable of interacting with an automated
trunk test system (for example, CAROT) or it may be a manual test line termination.
Test Equipment
Test equipment must be capable of recognizing an incoming call request from the test line, returning an
answer signal, recognizing supervision, and supporting 1XX tests. Although Cisco does not recommend
any vendor, SAGE Instruments 930 or 935 series test equipment with the proper options are good
choices.
Test Line
Many gateway products can satisfy the OTL requirements. Preferred capabilities include
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Must be supported by the Cisco BTS 10200.
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T1 access line to connect to the test equipment to minimize transmission impairments caused by
codecs and analog filters.
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Preferred signaling arrangement is immediate start with no incoming digits. (Other signaling
arrangements can be supported).
TTL Dial Plan
The Cisco BTS 10200 test lines are typically assigned 958-11XX numbers as depicted in
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Any line or trunk may dial the appropriate digits to reach a TTL. Other dial plans are also supported and
may also work in conjunction with the depicted plan.