The OBi1032 is a business-class color IP phone with support for up to 12 lines and up to six SIP, Google Voice VoIP accounts and one OBiTALK VoIP service. Use with OBiWiFi to connect the OBi1032 to your wireless access point. OBiBT and OBiLINE not supported, currently. Robust Telephony Features: Multi-Line / Multiple Calls Shared Call / Bridged Line Appearance Busy Lamp Field (BLF) - Regular, Pick-up and Speed Dial On-Hook Dialing Caller ID - Name & Number, Photo Call Waiting, Call Queued Multiple Distinctive Ringtones Based on Who is Calling Auto Answer Intercom Call, Page Call Page Groups (2) Call Hold Music on Hold Call Swap Call Park and Call Un-park Call Pick-Up - Selective and Group Message Waiting Indication - Visual and Tone Based Speed Dialing by code of 99 OBi Endpoints, Buddies or Numbers (E.164 or URI) Call Logs - Dialing from Call Logs Personal Phone Book - Each Entry with Multiple Numbers, Photo, Grouping Hot Line and Warm Line Calling Four-Way Conference Calling with Local Mixing Call Forward - Unconditional Call Forward on Busy Call Forward on No Answer Call Transfer -- Blind or Attended Anonymous Call Block Anonymous Call Do Not Disturb - Do Not Ring Call Return - Call Back on Busy Repeat Dialing Immediate Divert Multiple Ringtones - Upload Custom Ringtones Screen Saver - Upload Screen Saver with Slideshow Image(s) Secure Encrypted Voice Communication Support Independent Mic and Speaker Volume Adjustment: Speaker, Handset, RJ9 Headset, 3.5mm Headset