calling issue through sip to any company autoattendant

[shaikh ibrahim]

                   When i making outbound call through Cisco IP phone using SIP to any outside auto attendant i can list the welcome message but when i press extension the call gets fail.any idea ??

IP phone---- CUCM----VG----SIP---  SERVICEPROVIDER---DESTINATION(AUTOATTENDANT)

BR,

shib

[Ayodeji Okanlawon · Accepted solution]

I know why you are getting that error:

Do the ff:

rtp payload-type cisco-codec-fax-ack 98

then do this again and test

rtp payload-type nte 97

[shaikh ibrahim]

Dear AOKANLAWON,

                               Thaank you after apply this command the issue has resolved..

Thankyou once again...

[Ayodeji Okanlawon]

Shaikh,

Glad to know it worked. Thanks for the good rating..

[paolo bevilacqua]

I had seen this already with a SIP provider in that region. Heaven knows why they do that.

+5 to you!

[Ayodeji Okanlawon]

Paolo,

Thanks for the nice rating. Yes this particular provide Huwaei uses PT=97 for telephone-events/DTMF. Its a bit strange since most people use pt=101.