can u reset te dsp/reload the router and check again

hello, can u post the "isdn q931 debug" taken during a incoming call.

can u add the below line first .gateway(config)# sip-ua can u pls attach the running config .

can u add "voice rtp send-recv" and "voice call send-alert" on both routers .run" deb isdn q931 " on router to find out the possible call disconnect reason.And hows the bw usage for data when u place a call , check it on source and destination r...

i tried it in one of our router and getting the same message as u.pdar073(config)#int fa0/0pdar073(config-if)#ip rtp headpdar073(config-if)#ip rtp header-compressionRTP Header compression not supported for this encapsulationpdar073(config-if)#^Z