VOIP/SIP Testing Tool

Greetings all. I have been on a quest to find some solid and simple to use VOIP/SIP testing software to test from remote networks to my FreePBX installs… It has not gone well. Everything so far I have found is either heavy duty load testing or open-source CLI only developer stuff.

Anyone have any experience with something they like using or have any leads? I am just looking for something that gives simple stats on call quality and call completion or failure. Codec selection would be a plus but not a requirement.

Thanks!

Try this
http://myspeed.visualware.com/index.php
set it for type VoIP and select your codec.
Measures jitter which is handy