Yealink SIP-T48U / VoIP phone / 3-way call capability / SIP, SIP v2, SRTP / 16 lines / classic gray | 1301204
Product Features
- 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 T42U (pending)/T43U/T46U/T48U phone models, saves even more time and costs for businesses, as well as simplifies the management and maintenance. - Secure transport and interoperability
Yealink T4U series 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. Moreover, it is carried with dual firmware images that gives you an enterprise-level protection to avoid bricking your system once upgrade failed.
Special Features
- 7" 800 x 480-pixel color touch screen with backlight
- Opus codec support
- Dual USB ports
- Dual firmware images
- T42U (pending)/T43U/T46U/T48U Auto-P template unified
- T42U (pending)/T43U/T46U/T48U firmware unified
- Up to 16 SIP accounts
- Dual-port Gigabit Ethernet
- PoE support
- Paperless label design
- Headset, EHS support
- Wi-Fi via WF40/WF50
- Bluetooth via BT40/BT41
- USB recording
- Supports color-screen expansion modules
- Stand with two adjustable angles
- Wall mountable
Product Specification
Product Type | VoIP phone |
Body Colour | Classic gray |
Phone Features | Phone Features |
Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold |
Dialer Location | Base |
Conference Call Capability | 3-way |
Speakerphone | Yes |
Indicators | Visual ringer light, voice message waiting indicator, speakerphone indicator, headset, mute indicator |
Additional Functions | Call recording, Intercom |
IP Telephony | IP Telephony |
Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
VoIP | Yes |
VoIP Protocols | SIP, SIP v2, SRTP |
Voice Codecs | G.722, G.723.1, G.729ab, G.711u, G.711a, iLBC |
Lines Supported | 16 lines |
Quality of Service | IEEE 802.1Q (VLAN), IEEE 802.1p, Type of Service (ToS) |
IP Address Assignment | DHCP, static, PPPoE |
Security | EAP-MD5, IEEE 802.1X, TLS |
Power Over Ethernet (PoE) Support | Yes |
Network Protocols | TCP, TFTP, UDP, HTTP, DNS, HTTPS, SRTP, TR-069, SNTP |
Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
Voice Features | Comfort noise generation (CNG), voice activity detection (VAD), HD Voice, acoustic echo cancellation (AEC), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC) |
Network Features | Network Address Translation (NAT), Class 3 PoE, Lightweight Directory Access Protocol (LDAP) |
Phone Memory | Phone Memory |
Phone Directory Capacity | 1000 names & numbers |
Display | Display |
Type | LCD display - colour |
Display Location | Base |
Diagonal Size | 7" |
Display Resolution | 800 x 480 pixels |
Colour Depth | 24-bit (16.7 million colours) |
Backlit | Yes |
Miscellaneous | Miscellaneous |
Connections | 2 x headset jack / RJ-9 ¦ Electronic hook switch (EHS) ¦ USB |
Placing / Mounting | Wall-mountable, table-top |
Cables Included | Network cable |
Dimensions & Weight (Base) | Dimensions & Weight (Base) |
Width | 26.6 cm |
Depth | 22.6 cm |
Height | 18.5 cm |