cant make a conference call when two partys are from PSTN

Unanswered Question

hi,

i can make a conference call between three party when all the there parties are registered to cucm (ie ip phone).. i can also successfully make a conference all when one party is from PSTN and the remaining two are ip phones. but when two parties  are pstn and one party is the ip phone then the ip phone disconnect both pstn numbers when i press the conf key second time... any body who faced this kind of issue ... ?????

Regards

Nareh

I have this problem too.
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david-lima Mon, 03/29/2010 - 06:53

Hi Nareh, did you have configured hardware conference resource in your callmanager?

David

lusandi Mon, 03/29/2010 - 13:17

Hello Nareh,

I hope you are doing great,

I would like to confirm with you if there is by any change possible if you can provide us a complete call flow, at this momment I think this will be the call flow.

PSTN---(FXO)VG--CUCM----IP_Phone

Can you provide us this information:

show run of the voice gateway.

configuration of the voicegateway with the call manager. ( Screenshot will be better ).

traces of the call manager. Making a conference with the two pstn phones.

Do you have any security device on the middle: ASA, PIX, Firewall.

I hope you can provide me this information in order to see the problem, and try to provide you a resolution.

Regards,

Luis

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