Yealink SIP-T57W Premium Level IP Power over Ethernet Corded Business Phone with Optima HD Voice Technology and 7 Inch Adjustable Touch Screen LCD Display (800 x 480 Pixel) - Black

Product Information

The T4XS became the primary line. At the same time though Yealink had been getting into the video conferencing business, and I expect as some compliment/evolution of that they decided it was time for a new high end phone series (The T4xS were cool but they didn't have that "new" feel anymore). This is where I expect the T5x series originally came from. The T3x were a stop gap measure as they still had the same form factors as the T2x. To keep up with the times, Yealink introduced the more "modern" T4X designs. Since they also originally had 10/100 and Gigabit variants, those models became T4XP or T4XG depending on the switch built into them. In reality the P variant really only hit low end units, and before long the G version was the defacto. Then over time they evolved some of the most popular T phones to include gigabit switches. These became the T3x series and were suffixed by "G" to indicate "gigabit"... so T38G, etc

With the adjustable high-resolution display available on the T57W phone, you can switch angles to your liking and under a variety of lighting conditions. This will ensure an optimized user experience. Enjoy clear calls The way our software determines of the offered firmware is newer than the one on the phone is by comparing all 4 numbers of a firmware version. For T53W they were aiming for a lower more basic/common use phone that would fit the same form factor/look consistent with the rest of the T5X series. So just like the T41 that's now at the bottom end of the T4X series, you get the original version (T53W) and the "stripped down bare bones" version T53.

A built-in USB 2.0 port allows you to enjoy USB call recording via USB flash drive. Via this USB port, you also can connect a wired/wireless USB headset (sold separately) without connecting an adapter, and connect up to three (3) Yealink expansion modules EXP50 (sold separately), programmable with up to 180 paperless DSS keys. Efficient installation and provisioning

With integrated Bluetooth 4.2 and 5G WiFi, the SIP T57W IP phone is guaranteed to keep up to date with modern wireless technology. An integrated USB 2.0 port allows recording, and connection of a wired or wireless headset, to ensure you remain comfortable whilst taking your calls. This IP phone offers optimal efficiency and productivity. HD displayYealink SIP-T57W IP Phone features an adjustable 7-inch capacitive touch screen that you can readily adjust it to the comfortable viewing angle according to yourself. In addition, clearly defined set of menus is easy to navigate through when all you have to do is touching the desired option, that ensuring you an optimized interface for a smartphone-like user experience. C:\ProgramData\3CX\Instance1\Data\Http\Interface\provisioning\\firmware\C:\ProgramData\3CX\Instance1\Data\Http\Interface\provisioning\\firmware_new\ The Yealink SIP-T57W supports efficient provisioning and effortless mass deployment with Yealink’s Redirection and Provisioning Service (RPS) and Boot mechanism to help you realize the Zero Touch Provisioning without any complex manual settings. A built-in USB 2.0 port allows you to enjoy USB call recording via USB flash drive. Via this USB port, you also can connect wired/wireless USB headset without connecting Yealink EHS36 anymore, and connect up to 3 Yealink expansion modules EXP50 which can be programmed with up to 180 paperless DSS keys.