I have several hardware devices, using linphone embedded, connecting to our Sip Server. They are connecting over internet.
On one of the connections I notice a huge delay between the "trying" "dialog establishment"packets and the "ringing" packet.
Any hints on how I can find out where the trouble might be? As the hardware devices have only a webinterface where I can change some settings, I cannot really go into debugging on the device itself.
I have attached a screenshot of the callflow I have traced on the sipserver itself.
Any clues are highly appreciated.
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