McDewey

Table 13: INVITE Message Fields Outgoing (from Unified CM) Incoming (to Unified CM) Variable Message Lines Calling Party Number Called Party Number userpart INVITE sip:userpart@destIP:destPort SIP/2.0 Endpoint IP address Unified CM IP address or FQDN destIP Endpoint SIP port Unified CM SIP port destPort Unified CM IP address Endpoint IP address ip Via: SIP/2.0/UPD ip:port;Branch=number Unified CM SIP port Endpoint SIP port port Unified CM branch number Endpoint branch number number Calling Party Name Calling Party Name display1 From: "display" sip:userpart@ip;tag=from-tag Calling Party Number Calling Party Number userpart Unified CM IP address Unified CM IP address or FQDN ip Unified CM local tag Endpoint local tag from-tag Called Party Number Called Party Number userpart To: sip:userpart@destIP Endpoint IP address Unified CM IP address or FQDN destIP Calling Party Name Calling Party Name display Remote-Party-ID: "display" sip:userpart@ip;params Calling Party Number Calling Party Number userpart Unified CM IP address Endpoint IP address ip Varies per Unified CM configuration Varies per Endpoint params Unified CM generated string Endpoint-generated string string Call-ID: string Calling Party Number Calling Party Number userpart Contact: <sip:userpart@ip:port

Unified CM IP address Endpoint IP address ip Unified CM port Endpoint port port Sequence number sequence number number Cseq: number method SIP method SIP method method SIP Line Messaging Guide (Standard Edition) for Cisco Unified Communications Manager 19 SIP Standard Line Interface INVITE