Cisco 2911 Voice Gateway call status "No DSP"

[A.K.M. Sayeed]

I have Cisco UCM 8.6 and Cisco 2911 voice gateway connected in my office to which we have more than 16 PSTN line connected to. We are facing an issue with the voice gateway since a couple of weeks as it shows the call status"No DSP" and it occupies some of the ports for long time till reboot the gateway/clear the calls. I have attached a screenshot herewith for clear visibility.

Can anyone please advise how to fix this? Thanks for reading this post and your time.

Kind Regards,

A.K.M.Sayeed

[keglass]

This community does not provide technical support and is not staffed with technical support experts. I recommend you post this and future technical support questions to the Cisco Support Community (https://supportforums.cisco.com/index.jspa) where our Cisco technical support experts provide assistance. Another option is to open a ticket with the Cisco Technical Assistance Center (www.cisco.com/go/support) to get expert debugging assistance.

Hope this helps.

Kelli Glass

Moderator for Cisco Customer Communities