YeaLink T4 Series SIP-T46S VoIP IP Phone w/ 4.3in Color TFT LCD Display

MX75488 T4 Series SIP-T46S VoIP IP Phone w/ 4.3in Color TFT LCD Display
MX75488 T4 Series SIP-T46S VoIP IP Phone w/ 4.3in Color TFT LCD Display MX75488 T4 Series SIP-T46S VoIP IP Phone w/ 4.3in Color TFT LCD Display MX75488 T4 Series SIP-T46S VoIP IP Phone w/ 4.3in Color TFT LCD Display MX75488 T4 Series SIP-T46S VoIP IP Phone w/ 4.3in Color TFT LCD Display

Product Info

A Revolutionary SIP Phone for Enhancing Productivity

The SIP-T46S IP phone is the ultimate communications tool for busy executives and professionals. In addition to offering better overall performance than the T46G, this device has a faster interface with a rich, high-resolution TFT color display. Built with YeaLink Optima HD technology and wideband codec of Opus, this device enables crystal clear communications. The SIP-T46S is also built with Gigabit Ethernet technology, for rapid call handling and use with accessories like a Bluetooth USB Dongle and a Wi-Fi USB Dongle. The new T4S series offers the same elegant appearance of the T4 line, but with improvements for greater interoperability and collaboration.

  • 4.3", 480 x 272-pixel color display with backlight
  • Opus codec support
  • USB 2.0
  • Up to 16 SIP accounts
  • Dual Gigabit Ethernet ports
  • PoE support
  • Headset, EHS support
  • Wi-Fi via WF40
  • Bluetooth via BT40
  • USB recording
  • Supports expansion modules


Optima HD Audio

With YeaLink's Optima HD audio technologies, industry-leading acoustic clarity and newly-added support for Opus* to its broad audio codec list, the YeaLink T4S guarantees a lifelike collaboration experience.

* By supporting Opus, YeaLink T4S series delivers better audio quality in both high-bandwidth and poor network conditions, comparing to other wideband or narrowband codecs.

Remarkable User Experience

The YeaLink T4S series delivers excellent stability and performance with its latest advanced components. The phones feature an optimized interface for a smartphone-like user experience. Its rich one-touch soft keys allow for customization, bringing additional convenience and increasing productivity.

Elegant Industrial Design

The cutting-edge design of the YeaLink T4S series includes telephony superiority as well as an elegant appearance. The use of premium materials testifies to its manufacturing excellence.

Additional Convenience and Flexibility

In addition to the T46S and the T48S, the new T41S and T42S are equipped with a built-in USB port, meaning the entire T4S series supports extended functions such as USB call recording, Bluetooth, and Wi-Fi connectivity for more flexibility and functionalities.

Effortless Configuration and Upgrade

The YeaLink T4S supports efficient provision and effortless mass deployment with YeaLink's free Redirection and Provisioning Service (RPS). Furthermore, the T4S features an unified firmware and an auto-p template that apply to all phone models (T41S, T42S, T46S, and T48S), saving even more time and IT costs for businesses.

Additional Information:

Visit the Manufacturer Product Web Page for Full Details

Download the Manufacturer Datasheet


Make and Model YeaLink T4 Series IP Phone
Part Number SIP-T46S
Colour Grey
Phone Lines Supports up to 16 lines
SIP 16 SIP Accounts
Operating System Linux
Display 4.3in Color TFT LCD display (480 x 272) w/ backlight
Keys 10 x Line keys with up to 16 SIP accounts
27 x Memory keys (3 pages of 9 keys)
Voice Codecs


G.711(A/µ), G.729A/B, G.726, G.723.1, iLBC, Opus

Interface 2 x RJ45 Auto-sensing Gigabit Ethernet ports with integrated PoE
2 x RJ9 headset ports
1 x RJ12 EXT port
1 x PoE IEEE 802.3af port
1 x USB 2.0 Type-A Port
Bluetooth Supports Bluetooth V4.0
Network and Security SIP v1 (RFC2543), v2 (RFC3261)
Call server redundancy supported
NAT traversal: STUN mode
Proxy mode and peer-to-peer SIP link mode
IP assignment: static/DHCP/PPPoE
HTTP/HTTPS web server
Time and date synchronization using SNTP
QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
SRTP for voice
Transport Layer Security (TLS)
HTTPS certificate manager
AES encryption for configuration file
Digest authentication
OpenVPN, IEEE802.1X
Power AC 100~240V input
DC 5V/2A output
Power Consumption PSU: 1.9~4.0W
PoE: 2.7~5.5W
Temperature Operating: 10 ~ 50°C (14 ~ 122°F)
Humidity 10 ~ 95% RH, non-condensing
Compliance CE, FCC, RoHS, Reach, ISO 9001, metaswitch, Asterisk compatible, Genesys
Dimensions (WxHxD) 244 x 185 x 213 mm
Weight N/A

Package Contents

  • YeaLink SIP-T46S IP Phone
  • Handset with Headset Cord
  • Base Stand
  • RJ45 Ethernet Cable (2m)
  • Power Adapter (optional)
  • Wall Mount Bracket (optional)
  • Quick Start Guide