GSM to VoIP to GSM network

[mac87]

Hi guys,

I would like to ask if somebody knows how it is possible to make the responder site of the GSM network(a mobile phone) to be able to see the caller ID of the caller(mobile phone), because in the meanwhile the call have to pass through the VoIP network and so at the end, in the BTS it has to use other SIM card again.

Thanks a lot!

[Amjad Abdullah]

Chris:

I think it is better to put your question in voice forum.

Amjad