Cisco Bug: CSCtc70490 - Call disconnects seen due to %C5510-1-NO_RING_DESCRIPTORS error
Jan 27, 2017
- Cisco 2800 Series Integrated Services Routers
Known Affected Releases
Symptoms: A Cisco IOS VoIP gateway may intermittently experience dropped calls and loss of audio. Conditions: This symptom is observed when the DSP used in the call fails to respond. When this occurs, the following error messages may be displayed: Sep 7 02:09:14.171 PDT: %C5510-1-C5510_CHPI_ERROR: cHPI error for pa_bay 1 pump 1 dsp 9. Sep 7 02:09:15.555 PDT: %C5510-1-NO_RING_DESCRIPTORS: No more ring descriptors available on slot 1 dsp 9. Sep 7 02:09:20.555 PDT: %C5510-1-NO_RING_DESCRIPTORS: No more ring descriptors available on slot 1 dsp 9. This symptom is observed only in DSPware 9.4.811. To determine the DSPware version residing on the gateway, enter the <CmdBold>show voice dsp group all<noCmdBold> command in global configuration mode.
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