469 4xx Client error RFC 6086
SIP 469 Bad Info Package
The INFO package is not supported by the receiver.
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Common causes
- DTMF over SIP INFO, or another INFO package not negotiated.
How to fix it
- Use RFC 2833/4733 DTMF instead of SIP INFO, or align the Info-Package settings.
Seeing 469 on calls through a router or firewall? Check that SIP ALG is disabled. It causes a surprising number of SIP errors. Read why.
About 4xx responses
The request has a problem or cannot be completed at this server, usually because of something on the requesting side or the target user.