Re: Rejecting duplicate SIP calls

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Sounds to me like correct behaviour. SIP is expected to run on an unreliable transport so duplicate invites will receive duplicate responses. You don't want to give two different answers to the same question. Are you experiencing any problems due to the duplicates?


From: pjsip <pjsip-bounces@xxxxxxxxxxxxxxx> on behalf of mscdexdotexe <mscdex@xxxxxxxxxx>
Sent: 28 March 2018 02:16:13
To: pjsip@xxxxxxxxxxxxxxx
Subject: Rejecting duplicate SIP calls
 
Hello,

Is it possible to have pjsip/pjsua reject INVITEs with the same Call-ID as an existing, established call? Currently we're noticing that pjsip is happily accepting such duplicate INVITEs. I'd prefer there to just be a setting to toggle such behavior, but I cannot even see an efficient way of manually looking up each call to check for duplicates to reject such INVITEs.


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