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SIP response codes

SIP 300 Multiple Choices

Several possible addresses. The request should be sent elsewhere; the new address is in the Contact header.

300
Name
Multiple Choices
Class
3xx · Redirection
Defined in
RFC 3261

The request should be sent elsewhere; the new address is in the Contact header.

What the response looks like

SIP/2.0 300 Multiple Choices
Via: SIP/2.0/UDP 203.0.113.10:5060;branch=z9hG4bK776asdhds
From: <sip:101@pbx.example>;tag=1928301774
To: <sip:+15551234567@pbx.example>;tag=a6c85cf
Call-ID: a84b4c76e66710@203.0.113.10
CSeq: 2 INVITE
Content-Length: 0