Bandwidth reservation for Voice on a PtP T1

[gilson_machado]

I have two sites implementinf IP PBXs connected to Cisco switches. On each side I have a Cisco 1841 (IOS IP advanced) with one T1 serial port (point to point). I have to pass voice traffic over this T1 with data on it.

Does any one have a document or configuration that I can use as reference?

[Maulik Shah]

you need to have LLQ configured on the serial interfaces - the steps are here:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1830/products_feature_guide09186a0080087b13.html#wp5354

you do need to know what ports to prioritize etc & how much bandwidth to reserve based on usage - this would have to come from your IP PBX vendor.