We are in Canada and using A2Billing 1.9.5. A2Billing currently does pass CID NUMBER but it does not pass CID NAME.
There is no CID NAME dipping system in Canada like there is in USA. In Canada users are allowed to send both NAME and NUMBER in SIP Packets. However, it seems like A2Billing either deprecates or doesn't send NAME in its transactions.
We want it to always use both CID NAME and NUMBER.
If you can fix this, bid accordingly - Be ready to work right after your bid.