Basic Configuration
SIP Timers (MIN-SE has been set to 3600 across all VPOPs in Webex Contact Center. This can either be updated globally or modified in the Invite towards Weber Contact Center):
voice service voip
Sip
Min-se 3600
Configure Voice Codec Class
voice class codec 100
codec preference 1 g711alaw
codec preference 2 g711ulaw
Inbound dial-peer for calls from Weber Contact Center
dial-peer voice 200 voip
session protocol sipv2
voice-class codec 100
dtmf-relay rtp-nte
no vad
Outbound dial-peer for calls to Webex CC
dial-peer voice 100 voip
destination-pattern <Pattern towards Webex CC>
session protocol sipv2
session target ipv4:<Webex CC SBC IPs>
voice-class codec 100
voice-class sip options-keepalive
dtmf-relay rtp-nte
no vad