SIP Reinvite Options on 3300

[SeanKirby]

I've been having an issue that has been dogging me for ages, in which my 3300 doesn't respond to reinvite messages from the SIP provider. Specifically, they don't recieve a 200 OK response to their reinvite messages which are sent every hour on the hour, and thus calls are disconnected after one hour.

I've noticed that in the release of MCD I am running (10.0.2.8) there is an SDP option under SIP Peer Profile which is not documented in the help file: "Special handling of Offers in 2XX responses (INVITE)"

Does anyone know what this option does, or if it might be relevant to my issue? (BTW, it is currently set to "No")

Thanks all.

 

[SXWizard]

From the 4.1 Help file:

Set to Yes to have the 3300 ICP treat 2XX "sendonly" offers as "sendrecv" offers, causing a data stream to be opened to the IP address and port specified in the sendonly offer. For this option to work, the incoming messages must have a valid IP address and port number (not zeroes).
This option addresses an interoperability problem with some SIP gateways, whereby unending message negotiation causes an infinite loop.

Note: Because this option violates the specification, use it with care.