- 2 SIP accounts, 2 line keys, 3-way conferencing, 3 XML programmable context-sensitive soft keys
- Dual-switched 10/100 mbps ports, integrated PoE on GXP1625
- HD audio on speakerphone and handset
- EHS support for Plantronics headsets
- Up to 1000 contacts, call history up to 200 records