Common problems and solutions
The following sections contain solutions for common SIP Media Gateway voice connectivity
issues:
• No voice commands available on page 309
• New calls fail if more than 8 (or 16, 32, 64) simultaneous G.711 calls are attempted on
page 313
• Port 2/2 on the SR4134 cannot be configured on page 316
• T1 Link: Amber or RED LED and alarms on page 316
• Remote T1 link reports clock slip or frame drop errors on page 319
• Configuration of BRI, T1, or PRI port as clock source produces error on page 322
• Module LEDs for T1 or BRI are off on page 323
• Creation of T1 CAS of addition of PRI link to bundle produces an error on the state of the
slot on page 325
• Unable to make calls on T1 PRI on page 325
• Unable to make calls on T1 CAS on page 330
• FXS/FXO port status LEDs on page 332
• No dial tone on the analog FXS phones or ports on page 333
• Unable to make FXS calls on page 333
• FXS phones are not registered (Sylantro and BroadSoft only) on page 338
• Unable to make FXO calls on page 341
• Secure Router 2330/4134 not reachable from SIP Server on page 346
• Unable to make outbound calls to SIP endpoints on page 354
• Codec mismatch on page 356
No voice commands available
If
the Secure Router 2330/4134 is not equipped for voice traffic, the CLI does not display voice
commands.
To list the available commands, enter a ? at the configure# prompt.
The following figure shows a sample output with some voice-related commands highlighted in
red.
Common problems and solutions
Troubleshooting August 2013 309
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