No Caller ID is flashed on using Account Code

Hi,

I was configuring a freepbx extension, and an "account code" in the extension to dial through a2billing. I noticed that no caller id is flashed when dialing to outside world. Also ensured that the same caller id is on freepbx extn & a2billing sip friend. Please help me with this....

Thanks
Vinod Chandrasekar