one-way audio between CUCM 7.x and analog PBX

[yassine.selmi]

Hi,

I have two sites : one with CUCM and the other with an LG analog PBX.

There is a link between gateway_site1 (IOS based) and gateway site2, and ip routing is enabled.

the issue is that calls are established, ip phones on site 1 can hear analog phones from site 2, but analog phones on site 2 cannot hear ip phones from site 1.

I tried tips from this doc  :

http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a008009484b.shtml

But the problem still persisting.

Can you help me,

Thank you

[arunkum3]

Yassine,

Could you elaborate on the call flow a bit more so that we know what VoIP signalling protocols are involved.. E.g., IP Phone-- SCCP -- CUCM -- H.323 --Voice GW -- SIP -- LG Analog PBX.

Also post the "show run" of the Voice gateways.

Regards,

Arun Kumar

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