Aquahallic

First off I'm SOO happy I found this place and what a wealth of knowledge. THANX FOLKS!
Now my question:
Can someone explain to me Phase I and Phase II 1140E sets?
Also can someone tell me about setting up our VLANS correctly for these sets. I have about 30 of them deployed and we're getting spurratic ringing to the set and when the user picks up it's just dead air. Also sometimes they'll pick up the set to place a call and there's no dialtone. Weird thing is they state it's in 3's... if a call comes in and they get dead air if the caller calls right back it will drop again. then if they call again 3's a charm it'll answer. We're running Cisco 3750 switches (gig network). Just had the signal server and media card updated to ver. 4.5.088 and and latest firmware pushed to all the sets. I know it's not our network we use very little of our bandwidth in house we have fiber running to every closet. I was hoping that it was because of the 4.5.075 version of s/w we were running on our SS and MC but it seems it's still doing it. ANY help would be GREATLY appreciated.


Thanx,
Aqua