Hello - we have a CallManager 5.1(1) installation with several VG224 for analog phone/fax/modems. We've been having some problems with the faxes and modems and also an occasional problem dialing out where the recipent cannot hear us (on our Cisco VOIP phones - 7941/7960's). I feel like I may need to do some QoS setup which we really haven't done much with prior to now. A little about our set up...we have a core 4510 switch with 4 other wiring closets with 3560s. Like I said we also have 4 VG224s. We have fiber out to two 2811 routers and T1s from there to the local phone company. I am not familiar (much) with configuring QoS. Can someone point me in the right direction (either for reading material to get up to speed) or other information to find out how I can start configuring QoS. Thanks in advance.