[OpenSIPS-Devel] [opensips] pua_dialoginfo: failed calls triggers sending PUBLISH errors (#142)

[Ovidiu Sas]

@dsandras
The trying state correspond to the INVITE being sent out and therefor there is a message transiting the network.

@bogdan-iancu
I was looking into a solution for this and we should aim for a generic one.  My idea was to use a flag to mark when a PUBLISH was sent and to send a new PUBLISH out with a '0' expiry only if a previous PUBLISH was sent.  This doesn't need to keep track of the state and it is more aligned with presence (I would like to avoid specific dialog details in the PUBLISH sending decision logic, for this particular '0' expiry case).

Regards,
Ovidiu Sas

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https://github.com/OpenSIPS/opensips/issues/142#issuecomment-30755459
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