FXO remain connected even though local phone hung up

Unanswered Question
Dec 6th, 2006

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".

I have this problem too.
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kc-ussugar Wed, 12/06/2006 - 12:16

Try changing FXO port from "ground start" to "loop start" or vice versa.

sergey.zelenev@... Thu, 12/07/2006 - 11:32

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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Posted December 6, 2006 at 8:59 AM
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