Yes, it's correct. Asterisk needs to advertise its support of that
method in order for the other UA to be willing to send messages with
that request method to it.
Coco Richard wrote:
> Hi all,
>
> In the INVITE from my SIP provider to Asterisk i can see that the
> Allow Header includes an INFO Method, but Asterisk replies a 200 OK
> with an Allow Header without INFO Method. But in the RFC3261 (20.5)
> you can read:
>
> "All methods, including ACK and CANCEL, understood by the UA MUST be
> included in the list of methods in the Allow header field, when
> present. "
>
> My SIP provider seems to refuse to send SIP INFO DTMF and releases the
> call, because in 200 OK from * there is no INFO Method in the Allow
> Header.
>
> Is that correct.
>
> thx
> richard
>
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Alex Balashov - Principal
Evariste Systems
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