I'm having a problem where long VoIP calls in the range of 2-5 hours are dropped without notice. At first I thought this was a SIP trunk issue and it still may be, but I'm interested in hearing if there are any other ideas about what this could be.
This has happened on different hardware: Cisco SPA504G and Polycom 550.
I haven't tested this with a wireshark capture mostly because I'm not aware of a phone number I can call and stay connected for 2-5 hours to test this scenario.
I'm open to any suggestions on what this could be or how to investigate. Thanks.
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