Avalon:
Here's the rundown...
ESI-100 All IP Stations 72, Digital 48, Analog 28
ESI-200 All IP 192, Digital 168, Analog 56
ESI-600 All IP 408, Digital 336, Analog 188
ESI-1000 All IP 816, Digital 504, Analog 384
All are T1/PRI compatible as well as all of the add-on toys, IP, VIP, Presence Management, etc.
We've used PBXSoft for SMDR reporting but I'm also looking at Office Watch (
www.metropolis.com)
Let me know if you need any additional info, I'd be glad to assist.