| IP Phone Specification |
| User Interface | Display: 128 x 128 pixels, 65536 colours, backlit |
| 12 key numerical keypad; 5-key navikey; 2 softkeys; 2 hook keys; Sidekeys for volume and speakerphone |
| Caller-ID |
| Message waiting indication |
| Call waiting indication |
| Address book (170 entries) |
| Speed dialling |
| Local dial plan |
| Missed, received and dialled calls listings (20 entries) |
| Clock, daylight saving, call timer |
| Menu-driven user interface |
| Polyphonic ring tone selection |
| Speakerphone |
| Auto answer (when handset is lifted from charger) |
| Key lock option |
| Battery charge level indicator |
Audio features | Mute (disable microphone - softkey activation) |
| Receiver volume control - 6 levels. Seperate settings for hands free and headset/earpiece |
| Ringer volume - 6 levels + off (silence ringer-icon will be displayed) |
| Key sounds - click, DTMF and special tones |
| Low battery & out of range audible warnings |
Call Features | Hold |
| Call transfer (Attended and Blind); call hold SIP |
| Music on hold support (only PBX with this functionality) |
| Divert |
| Conferencing (2 handsets + 1 VoIP) or (1 handset + 2 VoIP); One conference at a time |
| Call park, call pick-up (only via supporting PBX) |
| Call waiting/switching between calls |
| Re-dialling |
| 3 concurrent VoIP Calls (SIP 2.0 - RFC3261) |
| 8 handsets supported per Basestation (only 6 alerting handsets at a time) |
| Intercom - handset to handset via Basestation |
| Call forward all, on busy, on no answer (support for soft switch) |
| Caller ID with name from phonebook |
| Voice mail support (reception and handling of voice mail indication, and call to voice mail server) |
Web Server | Embedded HTTP web server |
| Easy configuration of the phone, remote configuration |
| Password protection |
Codecs | G.711 (64 kbps, A-law & u-law) |
| G.729AB |
| iLBC (Internet Low Bit Rate CODEC) |
SIP | RFC3261 compliant |
| Digest/basic authentication |
| DNS SRV (RFC3263), redundant server support |
| Offer/answer (RFC3264) |
| Message Waiting Indication (RFC3842), subscription for MWI events (RFC3265) |
| DTMF sending in call (in band, info message and RFC2833) |
| STUN Client (NAT Traversal) |
| Rport (RFC3581) REFER (RFC3515) |
| 8 SIP registrations with different SIP servers/registrars |
| SIP configuration via http-page or from handset |
Installation | Remote firmware update (HTTP/TFTP) |
| Reset button |
| Power, Network, Registered, Call Indicators on Basestation |
| NetEQ by GIPS |
| VLAN |
