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SIP response codes

SIP 608 Rejected

Rejected by an intermediary (for example spam analytics). The call cannot succeed anywhere: do not try other locations.

608
Name
Rejected
Class
6xx · Global failure
Defined in
RFC 8688

The call cannot succeed anywhere: do not try other locations.

What the response looks like

SIP/2.0 608 Rejected
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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