- Model : SIP-T42S
- Download : Datasheet
- LCD : 2.7″ graphical LCD
- Resolution : 192 x 64
- LCD Backlight : Yes
- Line : 12
- PoE : Yes
- GigE : Yes
- Wall Mounting : Yes
- Foot Stand : 2 adjustable angles
- USB Port (2.0 compliant) : 1
- Ethernet Port : Dual-port Gigabit Ethernet
- External Yealink AC Adapter (optional) : AC 100~240V input and DC 5V/1.2A output
- Line Key : 6
- Memory Key : 15 (3 pages of 5 keys)
- Handset Port (RJ-9) : Yes
- Yealink EHS36 Wireless Headset Adapter
(Accessory, purchased separately) : Yes - Yealink YHS32 Headset
(Accessory, purchased separately) : Yes - Yealink Bluetooth Adapter BT40
(Accessory, purchased separately) : Yes - Yealink Wi-Fi Adapter WF40
(Accessory, purchased separately) : Yes - USB Recording : Yes
- 3-way Conferencing : Yes
- HD Voice : HD Speaker, HD Handset
- Wide-band Codecs : G.722, Opus
- Narrow-band Codecs : G.711(A/µ), G.729A/B, G.726,
G.723.1, iLBC, Opus - LCD Type : Fixed
- Operating System : Linux
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