FXO remain connected even though local phone hung up

Unanswered Question
Dec 6th, 2006
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phone "a" is conected to pbx "a" and this to the to router "a" via fxo. router "a" to router "b" via voip, and router "b" to pbx "b" via e&m and pbx "b" has phone "b".


The fxo on router "a" remain connected until phone "b", hung up. But if I make a call and phone "a" hung up, the router "a" remain connected until phone "b" hung up.


I run the debug voice ccapi inout on router "a" and I can?t see when phone "a" hung up, only when phone "b".

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kc-ussugar Wed, 12/06/2006 - 12:16
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Try changing FXO port from "ground start" to "loop start" or vice versa.


sergey.zelenev@... Thu, 12/07/2006 - 11:32
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You have a problem with FXO detecting a supervisory disconnect

Find out what signalling and method of disconnect your PBX is using and configure the FXO on the router accordingly.

The following links might help:

http://cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800ae2d1.shtml


http://cisco.com/en/US/products/sw/iosswrel/ps1834/products_feature_guide09186a00801601ac.html

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