[asterisk-users] Asterisk Legacy PBX

[Sriram]

Hi All

I am trying to setup :

PSTN E1 ---> Asterisk------>Legacy PBX------->Legacy Analog extensions.

I've followed steps using  : http://www.voipinfo.org/wiki/view/Asterisk-Panasonic

i get the green light (sync) on both the 2nd span of digium TE420P (that is cnnected to the legacy pbx pri card) and the pri card of the legacy pbx. but when i try to make a call to asterisk so that it can send the call to the legacy pbx using Dial command - it exits saying - CHANUNAVAIL , but if i try to dial an external PSTN number the call gets thru..

Any help apprecriated.

Thnks
Sriram

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