What is the recommended IOS for VoIP over leased lines and Frame Relay

[admin_2]

I'm gettng ready to implement VoIP over lease line and Frame Relay. From what I read the IOS could range from 11.x to 12.x I will be using QoS.

[#2]

Any image between 12.2(2)T - 12.2(8)T

would be your best bet, there newer images with turns of bug fixes

on voip issues.

It will suport voip over frame-relay , voatm , voip and almost

all QOS features needed.

Please go to url below for configuration pages.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/voice_c/vcprt1/vcvoip.htm

http://www.cisco.com/warp/public/788/voip/voip.shtml

[fbahram]

Unless you need fancy features which are introduced in 12.2T (Technology Train) then you should stay on latest 12.2 mainline which has all bug fixes from 12.1T and no additional features to introduce more possible instability.

Latest 12.2 should be 12.2.10a

Hoep this helps.