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New Member

1760 vic-2fxs no dial tone. (%IPM_C54X-1-DSP_TIMEOUT)

I got an used 1760 with 32F/96D. It has an advancedipserv 12.4-5a ios.

The show voice port summary is

R1#sh voice port summary

IN OUT

PORT CH SIG-TYPE ADMIN OPER STATUS STATUS EC

========= == ============ ===== ==== ======== ======== ==

3/0 -- fxs-ls up dorm on-hook idle y

3/1 -- fxs-ls up dorm on-hook idle y

The show voice dsp is

R1#sh voice dsp

DSP DSP DSPWARE CURR BOOT PAK TX/RX

TYPE NUM CH CODEC VERSION STATE STATE RST AI VOICEPORT TS ABORT PACK COUNT

==== === == ======== ======= ===== ======= === == ========= == ===== ============

C549 000 00 g711ulaw 4.4.707 Idle Idle 0 0 3/0 NA 0 9/3

C549 000 01 g711ulaw 4.4.707 Idle Idle 0 0 3/1 NA 0 9/3

Active Voice Call details

Current total analog signalling channels: 2

Current max allowed digital timeslot for voice: 12

Current active transcoding sessions: 0

Current free transcoding sessions: 0

Current active conferencing sessions: 0

Current free conferencing sessions: 0

Current number of DSP group: 1

Group 0:

Current allocated analog signalling channels: 2

Current free analog signalling channels: 0

Current allocated digital signalling channels: 0

Current free digital signalling channels: 12

Port(s) served: 3/0 3/1

Current Available MIPS: 300

SPMM DSPRM State Image D-sig D-sig A-sig A-sig Mips Voice/Xcode

Dsp Dsp allocate free allocate free Free Chan

0/0 0 UP FIXHC 0 0 2 0 100 0

0/1 1 UP FLEX6 0 6 0 0 100 0

0/2 2 UP FLEX6 0 6 0 0 100 0

After the phone is off hook the voice port shows like this. However there is no dial tone. There is hizzing noise.

R1#sh voice port summary

IN OUT

PORT CH SIG-TYPE ADMIN OPER STATUS STATUS EC

========= == ============ ===== ==== ======== ======== ==

3/0 -- fxs-ls up up off-hook idle y

3/1 -- fxs-ls up dorm on-hook idle y

The show voice dsp shows that dsp0 is down and logging as dsp0 not responding.

SPMM DSPRM State Image D-sig D-sig A-sig A-sig Mips Voice/Xcode

Dsp Dsp allocate free allocate free Free Chan

0/0 0 DOWN FIXHC 0 0 2 0 100 0

0/1 1 UP FLEX6 0 6 0 0 100 0

0/2 2 UP FLEX6 0 6 0 0 100 0

The logging is

: %IPM_C54X-1-DSP_TIMEOUT: dsp 0 NOT RESPONDING.

Now please tell me which is the faulty one. I think the PVDM is faulty. please suggest which has to be replaced.

3 REPLIES
Bronze

Re: 1760 vic-2fxs no dial tone. (%IPM_C54X-1-DSP_TIMEOUT)

“%IPM_C54X-1-DSP_TIMEOUT : dsp [dec] NOT RESPONDING” is due to that the DSP driver cannot queue messages up to the DMA engine for transmission. Reset the DSPs on this port module.

New Member

Re: 1760 vic-2fxs no dial tone. (%IPM_C54X-1-DSP_TIMEOUT)

This is due to the DSP module is damaged. When i replaced with the another DSP module, immediately the dialtone came up.

Re: 1760 vic-2fxs no dial tone. (%IPM_C54X-1-DSP_TIMEOUT)

Download 12.4(15)T9 and see if this still happens.

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