This is a small hotel attendant phone DTU-32 D . I have also replaced the ESI-8 card.Seems as though it is only happening on line 1 of hunt group. I have had the local provider change ports in their switch
and the trouble still exist. It just don't happen on all calls.
Analog trunk callers fade out after 2-3 minutes into a call.The caller is never disconnected and the call fades back in. I have replaced phone and 8 port trunk card. Any suggestions.
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