[asterisk-users] asterisk 1.8 sends "SIP/2.0 481 Call/Transaction Does Not Exist" to INVITE

[Vik Killa]

> To: <sip:8009499014 at X.YYY.32.10:5060>
> ;tag=ac86f72d2bfe10395b2e62e01c70bf66.0f65
>
> In your call sample To has a tag.
> if this is the first Invite it can't have a tag at the end, otherwise
> Asterisk will look for an existing dialog in its database and will show an
> error, if can't find any.
>
> It looks like the other end is never closing the previous dialog?.. is
> Asterisk sending a proper 200 OK after receiving a BYE?
> NAT problem?
>


Thanks, I think you are correct on that... there are no NAT problems... the
dialog ends with Asterisk sending a 481 because the dialog does not exist.
Im going to try to have the customer remove that tag from the To header.
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