RTP resource unavailable or SDP negotiation failed.

[bama]

I've got a TA904 running T900G2A-A5-03-00-E.biz that spits out the following error message when you call a SIP account that's connected to FXS0/1.

2012.12.03 14:29:03 SB.CALL 20 RTP resource unavailable or SDP negotiation failed. Call from (42366xxxxx) to (42383xxxxxx).

When I use the command "sh ver" the output detailing the DSP is missing.  Does that mean I've got a bad DSP?  Are there any DSP related debug commands I should try?

ADTRAN, Inc. OS version A5.03.00.E

  Mainline Version: M04

  Checksum: 80DBF88B

  Built on: Fri May 11 14:24:12 2012

  Upgrade key: cffba73490ae99efa483f0449sdfcc97

Hardware version DSP7119-2ndGen

Boot ROM version 14.04.00

  Checksum: 8549

  Built on: Wed Apr 11 15:24:20 2007

Copyright (c) 1999-2007, ADTRAN, Inc.

Platform: Total Access 904 (2nd Gen), part number 4212904L1

Serial number CFG0xxxxxx

Flash: 33554432 bytes  DRAM: 67108863 bytes

customer-324234 uptime is 0 days, 0 hours, 31 minutes, 53 seconds

System returned to ROM by Warm Start

Current system image file is "T900G2A-A5-03-00-E.biz"

Primary boot system image file is "T900G2A-A5-03-00-E.biz"

Backup boot system image file is "T900G2A-A4-02-00-E.biz"

Primary system configuration file is "startup-config"

[Anonymous]

Please post the output of “show version”

[Anonymous]

If it doesn’t show something similar to the output below you have a bad DSP.

slot 0, DSP 1

DSP software version: G1.A4.00.31

DSP hardware version: Freescale MSC7116

Total channels: 24

[bama]

I hate to sound like a jerk but did you not read my entire post that included a "sh ver" ?

[Anonymous · Accepted solution]

It looks like the DSP is bad.  In the past I have tried to erase the config and re-flash firmware with limited success.  You can certainly try these steps.  If nothing helps, you can contact Tech Support.

Regards,

Geoff