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SIP response codes

SIP 302 Moved Temporarily

The user can be reached elsewhere: the Contact header carries the new address and the caller should try it.

302
Name
Moved Temporarily
Class
3xx · Redirection
Defined in
RFC 3261

When it happens

  • Call forwarding implemented as a redirect.
  • A redirect server or SBC sending calls to another destination.

What to check

  • Many trunks ignore 3xx: enable "follow redirects" on the PBX or do the forwarding inside the PBX.

What the response looks like

SIP/2.0 302 Moved Temporarily
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

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