ok here it is for those that want it for your TF2Lobby servers. Couldn't test the ventrillo joining as we don't have a vent server to test on

Please note this only supports teamspeak 3, Vent and Mumble
usage in-gametype !mumble in all-chat if your using a mumble server
type !ts3 in all-chat if your using a teamspeak 3 server
type !vent in all-chat if your using a ventrillo server (not tested but should work)
download the attached zip and exract..in the voiceservers directory you will find 3 files, edit the one required with the settings needed to connect to your voice server and save it
ftp these upto the serverplace the .smx file into the plugins folder.
place the voiceservers directory into the /tf/addons/sourcemod/configs directory.
change the map and enjoy!