OCS 2007 R2 to CUCM 8.5 PSTN long distance 500 Internal Server Erro

[dbgreekas]

I have a direct sip trunk setup, and internal 4 digit dialing between the  systems works great.. Also PSTN dialing for all local numbers work fine.

However when I try and call a number in a different area code I hear a busy signal and on the cisco gatway a 500 Internal Server Error appears.

Now the odd thing is that a local call made as if it where long distance works, IE 1 555 555-1224 assuming 555 is local however 1 444 555-1224 fails. So I know the pattern is matching.

[dbgreekas]

The issue was resolved by chaing the outbound caller ID number... for some reason it worked for local numbers in the format 15551234 but not long distance... Removing the 1 so it was 5551234 fixed the problem.

[Justin Brenton]

Hi there,

Is this RCC or EV?

Can you verify that the call is being Normalized, also are you seeing the correct called number from OCS to the VoIP GW? 

Regards,

Justin