Hi Using opensips 1.6 we need to have the presence module to send NOTIFY over TCP rather than UDP when the size of the message is greater than a given MTU.
We tried to force it sending a SUBSCRIBE with transport=tcp in Contact header: SUBSCRIBE sip:[email protected] <sip%[email protected]> SIP/2.0 [...] Contact: <sip:[email protected]:5233;transport=tcp> Event: presence but the NOTIFY messages are sent over UDP (observe the "transport=tcp" in the request line): NOTIFY sip:[email protected]:5233;transport=tcp SIP/2.0 [...] Contact: <sip:[email protected]:6667> Subscription-State: active;expires=120 Content-Type: application/pidf+xml Content-Length: 1254 Could you please let me know what we should do to enable the sending over TCP ? I don't understand what we're doing wrong. Cheers Pascal
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