Separate SIP and PRI calls

General Help
1

HI,

Is there any way to separate SIP calls and PRI calls from conferencing and transfers. Here in Indian telecom regulations won’t allow VOIP calls and PSTN calls to get merged. Is there any way to do this?

Thanks
Karthik

2

According to this: http://www.voip-info.org/wiki/view/India+TRAI+Press+Release+legalizing+VOIP many restrictions were removed in 2008.