>>> cisco mc3810:

dial-peer voice 3 voip
 tone ringback alert-no-PI
 incoming called-number ...
 destination-pattern .
 voice-class codec 1
 session protocol sipv2
 session target ipv4:10.200.1.2
 dtmf-relay rtp-nte
 fax-relay ecm disable
 fax rate 9600
 fax protocol t38 ls-redundancy 1 hs-redundancy 1 fallback pass-through g711alaw
 no vad