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Error ''403 forbiden on sip trunk call''

Feb 03, 2017 01:54 AM PST
William Fofie
Axel IT SAS
We have a trunk sip between two remote sites. The two sites use ShoreTel as a telephony solution but for some time when I tried to emit a call from one site to another I have the error message "circuit tone". When I make a capture of the traces of calls then I analyze it with wireshark I notice that the Shoregear of the remote site returns me the error '' 403 forbiden ''.

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