Which is better

[dathaide]

To run VoIP. A frame relay circuit which is point to point or a point to point.

thanks

[robrhodes]

It depends. Both work.

[dathaide]

Such as Encapsulation. What about efficieny?

[robrhodes]

A search on CCO for QoS and efficiency will provide these and other useful results:

http://www.cisco.com/en/US/products/sw/iosswrel/ios_abcs_ios_networking_the_enterprise0900aecd800a4df9.html

http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a00800bd9ec.html

http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a00800b75cc.html

http://www.cisco.com/en/US/tech/tk652/tk701/technologies_configuration_example09186a0080101210.shtml

In the simplest of terms, FRF.12 for frame-relay and MLPPP w/LFI for pt-to-pt. Maybe cRTP depending on router model, link speed, etc.

You might also want to review the CallManager SRND:

http://www.cisco.com/application/pdf/en/us/guest/netsol/ns268/c649/ccmigration_09186a008017bb4a.pdf