- Yealink Optima HD voice
- Codecs: Opus G.722 G.711(A/u) G.723 G.729AB G.726 iLBC
- Dual-port Gigabit Ethernet
- Display: 4.3" 480 x 272 pixel color with backlight
- Dual-color LEDs
- 4 Soft Keys
- 10 Line keys can be programmed with up to 27 features on 3 page view
- Built-in USB port allows support for Bluetooth headset with BT40 dongle
- Up to 16 SIP accounts
- Paper label-free design
- Local phonebook with up to 1 000 entries
- RJ9 headset port with EHS support (see EHS36 wireless headset adapter)
- Supports up to 6 EXP40 expansion modules
- Stand with 2 adjustable angles
- Wall mountable (with kit WMB-T46)
- PoE 802.3af
- Power supply not included (PS5V2000US)
- Upgrades from T46G
- Device performance enhancement with faster response on the phone's user interface
- Opus support
- Enhanced speaker performance
- United firmware
- Hearing aid compatible handset
- Codecs: Opus G.722 G.711(A/u) G.723 G.729AB G.726 iLBC
- Dual-port Gigabit Ethernet
- Display: 4.3" 480 x 272 pixel color with backlight
- Dual-color LEDs
- 4 Soft Keys
- 10 Line keys can be programmed with up to 27 features on 3 page view
- Built-in USB port allows support for Bluetooth headset with BT40 dongle
- Up to 16 SIP accounts
- Paper label-free design
- Local phonebook with up to 1 000 entries
- RJ9 headset port with EHS support (see EHS36 wireless headset adapter)
- Supports up to 6 EXP40 expansion modules
- Stand with 2 adjustable angles
- Wall mountable (with kit WMB-T46)
- PoE 802.3af
- Power supply not included (PS5V2000US)
- Upgrades from T46G
- Device performance enhancement with faster response on the phone's user interface
- Opus support
- Enhanced speaker performance
- United firmware
- Hearing aid compatible handset