e/List of SIP response codes

Information
has gloss	eng: SIP responses are the codes used by Session Initiation Protocol for communication. They complement the SIP Requests, which are used to initiate action such as a phone conversation. Note that the Reason Phrases of the responses listed below are only the recommended examples, and can be replaced with local equivalents without affecting the protocol. 1xx—Informational Responses * 100 Trying extended search being performed may take a significant time so a forking proxy must send a 100 Trying response * 180 Ringing * 181 Call Is Being Forwarded * 182 Queued * 183 Session Progress
lexicalization	eng: List of SIP response codes
instance of	c/VoIP protocols