Yealink SIP-T46U
VoIP phone with caller ID | 3-way call capability | SIP, SIP v2 | 16 lines
Main Specification
| Product Description | Yealink SIP-T46U - VoIP phone with caller ID - 3-way call capability |
|---|---|
| Product Type | VoIP phone with caller ID |
| VoIP Services | Skype |
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP Protocols | SIP, SIP v2 |
| Voice Codecs | G.722, G.723.1, G.729ab, G.711u, G.711a, G.726, iLBC, Opus |
| Lines Supported | 16 lines |
| Speakerphone | Yes |
| Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold |
| Display | LCD display - colour - Yes |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
General
| Product Type | VoIP phone |
|---|
Phone Features
| Operating System | Linux |
|---|---|
| VoIP Services | Skype |
| Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold |
| Caller ID Type | Caller ID |
| Key Expansion Module Max Qty | 6 |
| Dialer Location | Base |
| Conference Call Capability | 3-way |
| Speakerphone | Yes |
| Messaging Services | SMS |
| Programmable Buttons Qty | 10 |
| Volume Control | Yes |
| Indicators | Visual ringer light, voice message waiting indicator |
| Additional Functions | Built-in clock, call recording, redial, mute, Music on hold, HD Voice, group call pickup, Do Not Disturb (DND) |
IP Telephony
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
|---|---|
| VoIP | Yes |
| VoIP Protocols | SIP, SIP v2 |
| Voice Codecs | G.722, G.723.1, G.729ab, G.711u, G.711a, G.726, iLBC, Opus |
| 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 | IEEE 802.1X, TLS |
| Power Over Ethernet (PoE) Support | Yes |
| Network Protocols | TCP, TFTP, UDP, HTTP, DNS, SNMP, HTTPS, SRTP, 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), Yealink Optima HD voice technology |
| Network Features | Network Address Translation (NAT), Class 3 PoE, Lightweight Directory Access Protocol (LDAP) |
Phone Memory
| Phone Directory Capacity | 1000 names & numbers |
|---|
Display
| Type | LCD display - colour |
|---|---|
| Display Location | Base |
| Diagonal Size | 4.3" |
| Display Resolution | 480 x 272 pixels |
| Colour Depth | 16-bit (65000 colours) |
| Backlit | Yes |
| Display Languages | Multilingual |
Miscellaneous
| Connections | Headset jack / RJ-9 Accessory port / RJ-12 2 x USB |
|---|---|
| Hearing Aid Compatible | Yes |
| Placing / Mounting | Wall-mountable, table-top |
| Cables Included | Network cable - 2 m |
| Included Accessories | Stand |
Dimensions & Weight (Base)
| Width | 24.4 cm |
|---|---|
| Depth | 21.3 cm |
| Height | 18.5 cm |
Product features
Easy customization and high expansibility
The SIP-T46U comes with two Gigabit Ethernet ports, one of which is suitable for Power over Ethernet (PoE). Accompanied by two USB ports, the T46U 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 three pages of flexible buttons that can be easily programmed with 27 paperless DSS keys at most, 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.Key selling points
- 4.3" 480 x 272-pixel color display 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
- USB headset and 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
References
MPN: SIP-T46U
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04/06/2026 07:16:12