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FXO disconnection problem. FXO directly connected to PSTN and doesn't hang up the call.

Connection is

PSTN --- FXO 1750 --- VoIP --- 3660 E1 --- PBX.

The call is not disconnected when originated from PSTN, that is, FXO port in 1750 remains up. If I change to ground-start the call isn't answered by FXO port.

5 REPLIES
Anonymous
N/A

Re: FXO disconnection problem. FXO directly connected to PSTN an

If ground-start signaling does not fit the problem, you can also try some other alternatives, please follow the guideline http://www.cisco.com/warp/customer/788/signalling/fxo_disconnect.html

New Member

Re: FXO disconnection problem. FXO directly connected to PSTN an

try using the "auto-cut-through" comand

or try using loop-start signaling with "disconnect-ack" command

New Member

Re: FXO disconnection problem. FXO directly connected to PSTN an

try using the "auto-cut-through" comand

or try using loop-start signaling with "disconnect-ack" command

New Member

Re: FXO disconnection problem. FXO directly connected to PSTN an

try using the "auto-cut-through" comand

or try using loop-start signaling with "disconnect-ack" command

New Member

Re: FXO disconnection problem. FXO directly connected to PSTN an

I had this same problem (but I also had the problem that I couldn't make outbound calls). What eventually fixed both problems was switching the ring and tip wires on the analog line coming into the FXO card. It was an FXO, not an FXO-M1.

Don't know if it will work in your case, but it did the trick for me.

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