geravatar.blogg.se - Out of band dtmf

If MTP is checked on SIP trunk, User Side is OOB and RFC 2833, SIP trunk side is RFC 2833.

MTP will be invoked by CCM and RFC2833 pass-through is required on MTP

If MTP is checked on SIP trunk, both sides are RFC 2833.

MTP will be invoked by CCM and OOB input will be injected to RTP by CCM via SCCP.

If MTP is checked on SIP trunk, User side is OOB.If MTP is required due to Asymmetric DTMF relay support, MTP will be invoked by CCM and OOB input will be injected to RTP by CCM via SCCP. If MTP not checked on SIP trunk, User side is OOB.This blog is intended to help you understand the SIP DTMF Options supported by Cisco Unified Communications Manager (CUCM).ĭTMF can be sent either in band or out of band (OOB)