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VTSP: Internal Error (DSP unknown failure)

Hi

We have a CUCME connected to the ITSP via a SIP trunk. Some incoming calls fail with cause code 172. In the debugs I could see this just before the SIP BYE message:

%VOICE_IEC-3-GW: VTSP: Internal Error (DSP unknown failure): IEC=1.1.182.9.22.10

#show voice iec description 1.1.182.9.22.10

    IEC Version: 1

    Entity: 1 (Gateway)

    Category: 182 (Hardware Resources Unavailable)

    Subsystem: 9 (VTSP)

    Error: 22 (DSP unknown failure)

    Diagnostic Code: 10

The call-leg on the SIP trunk is always alaw, internally between CUCME and CUE or the phones is always ulaw. We have a transcoder active.

What debugs can I run to check if this is a DSP allocation error, or if there is a hardware issue, or... ?

Thanks!

4 Replies 4

You can use

show voice dsp group all..

This will show if you hava had dsp allocation failure

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"opportunity is a haughty goddess who waste no time with those who are unprepared"

Please rate all useful posts

Thanks aokanlawon, I don't have access to the customer network right now but i'll try this and let you know the output soon.

Hi aokanlawon

It doesn't look like a DSP allocation issue:

show voice dsp group all

DSP groups on slot 0:

dsp 1:

  State: UP, firmware: 26.3.7

  Max signal/voice channel: 43/43

  Max credits: 645

  num_of_sig_chnls_allocated: 42

  Transcoding channels allocated: 0

  Group: FLEX_GROUP_VOICE, complexity: FLEX

    Shared credits: 630, reserved credits: 0

    Signaling channels allocated: 42

    Voice channels allocated: 1

    Credits used (rounded-up): 15

    Voice channels:

      Ch01: voice port: 0/2/0, codec: g711alaw, credits allocated: 15

  Slot: 0

  Device idx: 0

  PVDM Slot: 0

  Dsp Type: SP2600

dsp 2:

  State: UP, firmware: 26.3.7

  Max signal/voice channel: 43/43

  Max credits: 645

  num_of_sig_chnls_allocated: 17

  Transcoding channels allocated: 12

  Group: FLEX_GROUP_VOICE, complexity: FLEX

    Shared credits: 403, reserved credits: 0

    Signaling channels allocated: 0

    Voice channels allocated: 0

    Credits used (rounded-up): 0

  Group: FLEX_GROUP_XCODE, complexity: MEDIUM

    Shared credits: 0, reserved credits: 242

    Transcoding channels allocated: 1

    Credits used (rounded-up): 21

  Slot: 0

  Device idx: 0

  PVDM Slot: 0

  Dsp Type: SP2600

dsp 3:

  State: UP, firmware: 26.3.7

  Max signal/voice channel: 42/43

  Max credits: 645

  num_of_sig_chnls_allocated: 0

  Transcoding channels allocated: 0

  Group: FLEX_GROUP_VOICE, complexity: FLEX

Shared credits: 645, reserved credits: 0

    Signaling channels allocated: 0

    Voice channels allocated: 0

    Credits used (rounded-up): 0

  Slot: 0

  Device idx: 0

  PVDM Slot: 0

  Dsp Type: SP2600

DSP groups on slot 1:

This command is not applicable to slot 1

DSP groups on slot 2:

This command is not applicable to slot 2

DSP groups on slot 3:

This command is not applicable to slot 3

DSP groups on slot 4:

This command is not applicable to slot 4

  0 DSP resource allocation failure

Any idea?

Thanks!

FYI: the issue did not reoccur so far...

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