FXO not receiving the call

Unanswered Question
Apr 13th, 2009
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Hello,


I'm using a 1760 router with 1 FWO port, and a PVDM of 256.


The FXO ports are connected to a PABX with 4 extensions. And three of them are working correctly. The fourth one is not receiving any call when using the extension. And when conncting the PABX directly to an analog phone, it receives the call.


What can be the problem ?


To be clearer, only one port is not receiving the call, and sometimes the same port works with another extension.


Any suggestion ?


Regards,

Omar

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thotsaphon Mon, 04/13/2009 - 14:34
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Omar,

When trying to call to that port do you see any light on LED of that port? What's the out put of a "show voice port summary" command while calling to that port. Off-hook? On-hook?

Did you try to do "shut and no shut" command on that port? What happened?



Toshi

omar.elmohri Wed, 04/15/2009 - 02:39
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Toshi,


Whan I can that port there is no light on.


You think that this can support only three analog lines?


Regards,

Omar

thotsaphon Wed, 04/15/2009 - 03:23
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Omar,

I don't think so. In case you are using PVDM-256K-4 then you can use 4 lines of G.729a Medium Complexity. Would you please test making a call to that port? Does it work? To make sure that the 4th can work correctly.

This is a useful link.

http://www.cisco.com/en/US/products/hw/routers/ps221/products_tech_note09186a00800c3399.shtml


Toshi

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