Hi all,
I am facing issues with DTMF for some outbound calls. Some are working fine (mostly the toll free numbers) but calls to other numbers it is failing with dtmf. The calls are getting connected, users can hear the IVR options but none can be selected. Attaching the output of "show call active voice" for one successfull call and one unsuccessfull. My setup is like CUCM<-->Gateway router (C4321)<--->ITSP. Both the links are SIP trunks. 10.128.2.10 is the CUCM and 192.168.1.6 is the ITSP sip gateway. 5068888 is the sample number with DTMF not working and 600532273 is the one DTMF is working well. Below is the dial-peer configuration from the gateway.
dial-peer voice 772 voip
session protocol sipv2
session target ipv4:10.128.2.10
incoming called-number [0,1-9].
no voice-class sip outbound-proxy
dtmf-relay rtp-nte sip-notify sip-kpml sip-info
codec g711alaw
no vad
dial-peer voice 6666 voip
preference 2
destination-pattern 408....
session protocol sipv2
session target ipv4:10.128.2.10
no voice-class sip localhost
no voice-class sip outbound-proxy
dtmf-relay rtp-nte sip-notify sip-kpml sip-info
codec g711alaw
ip qos dscp cs3 signaling
no vad
dial-peer voice 7704 voip
destination-pattern [2-8]......$
session protocol sipv2
session target ipv4:192.168.1.6
voice-class sip localhost dns:44086666.etisalat
voice-class sip profiles 101
dtmf-relay rtp-nte sip-notify sip-kpml sip-info
codec g711alaw
no vad
dial-peer voice 77800 voip
destination-pattern [678]00T
session protocol sipv2
session target ipv4:192.168.1.6
voice-class sip localhost dns:44086666.etisalat
voice-class sip profiles 101
dtmf-relay rtp-nte
codec g711alaw
no vad
My voice gateway IOS is isr4300-universalk9.03.13.06a.S.154-3.S6a-ext.SPA.bin
Thanks in advance
