Specifications
Manufacturer: Yealink Network Technology Co., Ltd
Manufacturer Part Number: SIP-T48S
Manufacturer Website Address: http://www.yealink.com
Brand Name: Yealink
Product Series: T4
Product Model: SIP-T48S
Product Name: Ultra-elegant Gigabit IP Phone
Marketing Information: The SIP-T48S IP Phone is a dynamic business communications solution for executives and professionals. This phone offers a large touch screen that makes switching between pages and applications swift, easy and convenient. The SIP-T48S is also with Yealink’s Optima HD Voice technology and wideband codec of Opus for unparalleled audio clarity. Phone users will think they are sitting in the same room with one another. The phone uses Gigabit Ethernet technology for rapid call handling. Plus, it works in conjunction with Bluetooth USB Dongle and 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.
Product Type: IP Phone
Technical Information
IP Phone Technology: VoIP
Base Unit Connectivity Technology: Corded
Caller ID: Yes
Speakerphone: Yes
Display & Graphics
Display Colour: Colour
Interfaces/Ports
Network (RJ-45): Yes
Number of Network (RJ-45) Ports: 2
USB: Yes
PoE (RJ-45) Port: Yes
Management & Protocols
Communication Protocols:

• SIP
• SIP v2
• NAT
• STUN
• DHCP
• PPPoE
• SNTP
• UDP
• TCP
• SRTP
• TLS

Physical Characteristics
Colour: Black
Form Factor:

• Wall Mountable
• Desktop

Height: 185 mm
Width: 266 mm
Depth: 226 mm
Miscellaneous
Package Contents:

• Ultra-elegant Gigabit IP Phone
• Handset cord
• Ethernet Cable (2m CAT5E FTP Cable)
• Stand
• Quick Start Guide

Environmentally Friendly: Yes
Environmental Certification:

• RoHS
• REACH
• TV Rheinland