[asterisk-users] Fast busy on TDM400P

[David W. Rice]

I'm getting a random fast busy signal after two rings on an incoming ZAP
channel through an FXO interface on a TDM400P.  I have a NoOp in the
dial plan showing the callerID.  When the random fastbusy happens, no
CallerID is sent.  When it works, the CallerID information is sent.  Is
this a card issue or a telco issue?  I have a very upset client and need
to figure out how to resolve this.

 

Thanks,


DR

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