I need your help on a problem I am facing with my PSTN incoming calls via bri. Whenever an incoming gets picked up, it drops before the first 30 second.
The ouput ISDN Q93 debug showing call log from connexion to disconnexion is attached.
I read in the forum some people stating the problem to be IOS bug related but I didnt see anywhere that IOS upgrade/downgrade resolved the problem!
I am have CCME 7.0 on a 2801 with IOS Version 12.4(20)T (Adv-Ent)
Thanks for helping!
You could be hitting this bug: CSCtf25886
No fix yet. Which DSPware version are you running? (check with show voice dsp group all)
Lab reproduction work has demonstrated that superseding the default DSPware in
IOS 12.4(15)T12 with DSPware version 9.4.9 or earlier constitutes a stable
combination of IOS and DSPware.