Yealink SIP-T48U

Easy Customization and High Expansibility. The SIP-T48U has a seven-inch, 800 x 480-pixel, backlit- color touch screen, which enables a rich. visual presentation and easy navigation. Accompanied by two USB ports, the T48U is your. right-hand man in the office that makes Bluetooth, Wi-Fi, USB headset and USB recording possible,. and you can use any two of them freely according to your needs to enrich phone features.. Meanwhile, the phone not only has 29 one-touch DSS keys that can be easily programmed to. various features, but also can connect up to three expansion modules, for up to 180 additional. buttons with a screen-based LCD display and LED system.. HD Audio. Yealink Optima HD Voice technology combines cutting-edge hardware and software with. wideband technology for maximum acoustic performance. Being a totally open, highly versatile. audio codec, Opus, is designed to perform a higher HD audio quality than other wideband codecs. in a high network bandwidth; However, if your current network quality is poor, Opus can provide. you with a better audio quality than other narrowband codecs. And its hearing aid compatible. (HAC) handset helps the person who is with hearing loss to hear the voice more clearly.. Efficient Installation and Provisioning. Yealink T4U series 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, which makes the T4U series simple to deploy,. easy to maintain and upgrade. Furthermore, a unified firmware and auto-p template that applies. to all T4U phone models (T41U, T43U, T46U and T48U), saves even more time and costs for. businesses, as well as simplifies the management and maintenance.. Secure Transport and Interoperability. The SIP-T48U uses SIP over Transport Layer Security (TLS/SSL), which is the latest network security. technology. It’s also compatible with leading soft switch suppliers, such as 3CX, Broadsoft. Broadworks.. Design. Product type. IP Phone. Handset type. Wired handset. Product colour. Grey. Phone features. Phonebook capacity. 1000 entries. Number of VoIP accounts. 16. Redialing. Yes. Conference call. Yes. Call forwarding. Yes. Call hold. Yes. Call waiting. Yes. Caller ID. Yes. Management features. Keypad number of keys. 29. Display. Display. LED. Display diagonal. 17.8 cm (7). Display resolution. 800 x 480 pixels. Touchscreen. Yes. Backlight display. Yes. Audio. Speakerphone. Yes. Voice codecs. AGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC. Network. Ethernet LAN. Yes. Ethernet LAN data rates. 10,100,1000 Mbit/s. Ethernet LAN interface type. Gigabit Ethernet. Wi-Fi. Yes. Bluetooth. Yes. Security algorithms. AES, HTTPS, SRTP, TLS. Ports & interfaces. USB 2.0 ports quantity. 2. Expansion module support. Yes. Ethernet LAN (RJ-45) ports. 2. Power. Power over Ethernet (PoE). Yes. AC adapter input voltage. 100 - 240 V. Operational conditions. Operating relative humidity (H-H). 10 - 95%. Operating temperature (T-T). 0 - 40 °C. Weight & dimensions. Width. 226 mm. Depth. 226 mm. Height. 185 mm. Packaging content. Number of handles included. 1 pc(s). Logistics data. Harmonized System (HS) code. 85171800. manual pdf