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

Upgrade its firmware to the latest 3CX supported version. See how to do this here . Note: If you are planning to install a router phone, read the section below regarding the firmware requirements. Yealink doesn't really breakdown/explain their naming concepts, but having dealt with them for many years I can give you a bit of brief history to help clarify things a bit:

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. The Yealink T57W WiFi VoIP/SIP Phone is an easy-to-use Prime Business Phone with an adjustable 7-inch multi-point touch screen. Not only can you easily and flexibly adjust the screen to find the comfortable viewing angle according to personal and environmental needs, but you can also get rich visuals and easy navigation with just one-touch. With the built-in Bluetooth 4.2 and dual band 2.4G/5G WiFi, the SIP-T57W IP Phone ensures that you'll keep up with modern wireless technology and the future wireless age. The built-in USB 2.0 port allows for USB recording or a direct wired/wireless USB headset and up to three Yealink EXP50 expansion modules (sold separately - see accessories). The Yealink SIP-T57W is a powerful and expandable office phone that delivers optimum desktop efficiency and productivity. Key Features 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 Yealink SIP-T57W IP Phone features a 7-inch capacitive touch screen that you can easily adjust to a more comfortable viewing angle. In addition, the clearly defined set of menus is easy to navigate through when all you have to do is touch the desired option, providing you with an optimised interface for a smartphone-like user experience. HD audio When the time came to give the T4XGs an internal upgrade to get faster processors/more modern hardware etc, Apply had just pulled their famous "iPhone S!" marketing scheme and I suspect Yealink switched from T4XG to T4XS as a blatant copy of the strategy. (i.e. it's the same phone but faster inside, so let's add an S to say "Super!").The Yealink business phone supports up to four cordless handsets via a DECT dongle. You can now switch calls between the desktop phone and the cordless DECT handset in no time. Yealink knows how important it is for users to have a clean and neat workspace. With the wireless headset's connection to Bluetooth and Wi-Fi, your space will remain uncluttered. 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 If this is the first phone in your network, make it a router phone. If you have others choose whether to make this a router phone or specify the router / SBC for this phone. C:\ProgramData\3CX\Instance1\Data\Http\Interface\provisioning\\firmware\C:\ProgramData\3CX\Instance1\Data\Http\Interface\provisioning\\firmware_new\ 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.

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 display

Go to for following folders and delete all files and subfolders in them (NOT the root folders themselves though!): 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. Note: If you don't want to use RPS, you have to enter the provisioning URL into the phone via its web interface. The phone will be configured automatically and then restart. Use the DHCP option 66 if you have a large number of identical legacy phones (as the URL is different for each phone).