McDewey

Comments Supported in Unified Communications Manager SIP Message Unified CM ignores this message. No 182 Queued Early media is supported. Yes 183 Progress — Yes 2xx Response — Yes 200 OK Message applies for REFER. Yes 202 OK — Yes 3xx Response This message does not generate. The system contacts the new address in the Contact header upon receiving. Yes 300–302, 305, 380, 385 Upon receiving, the system initiates a graceful call disconnect. Yes 4xx Response Unified CM SIP sends out message 401 (Unauthorized) if authentication and authorization are enabled. Unified CM SIP also responds to inbound 401 challenges. Yes 401 Unified CM SIP sends out message 403 (Forbidden) if a SIP method is not on the Access Control List. 403 can also get returned if the system does not support a method in a particular state. Yes 403 Unified CM SIP responds to inbound 407 (Proxy Authentication Required) challenges. Yes 407 Unified CM SIP sends out 412 if a PUBLISH refresh or PUBLISH remove request is received with an unknown entity tag. Yes 412 SIP Line Messaging Guide (Standard Edition) for Cisco Unified Communications Manager 7 SIP Standard Line Interface Standard Interface Compliance Summary