Yealink T48G VoIP Phone: Modern Look and Outstanding Features

Image of the Yealink SIP T48G VoIP Phone

Yealink T48G VoIP Phone: Modern Look and Outstanding Features

Yealink T4xx series of VoIP phones have been made with modern looking design in mind while providing all the core VoIP features and more. The Yealink T48G model is a more advanced device for business users who need integrated communications and want to purchase VoIP infrastructure that is here to stay for at least a few years. This is a common issue with business communications equipment – a good number of hardware and software solutions are becoming obsolete in a couple of years as technology is advancing very rapidly.

Manage Up To 16 VoIP Accounts

Unlike many desk phone systems, the Yealink T48G is able to support up to 16 VoIP accounts offering TLS, SRTP, HTTPS, 802.1x, Open VPN, and AES encryption. In contrast, the average desk phone supports some four lines.

You can operate this VoIP phone via both touchscreen and a dial pad. The T48G provides you with 29 DSS keys for call lines you can manage using a very intuitive interface on a large LCD display. It also integrates easily with third-party devices.

Yealink T48G Features

You will not be missing a single standard VoIP feature with Yealink T48G. The only features this model lacks is a camera for video conferencing. All basic functionality such as call transfers, conferencing, phone directory, do not disturb, call history, and notifications is available.

A picture of the Yealink SIP T48G model highlighting capabilities such as support for 16 SIP lines and 29 DSS keys.


Source: Yealink


The phone has built-in PoE ports, Bluetooth, HD Audio, and Gigabit ports. You get a phonebook able to memorize up to 1,000 entries. T48G enables 3-way conferencing and provides you with speed buttons for commonly used functions such as hold, transfer, redial, speakerphone, headset, mute, and volume.


What Yealink SIP-T48G VoIP Phone Has on Offer:

  • 16 lines, with Firmware V73 loaded
  • Dual-port Gigabit Ethernet
  • Support for Yealink Optima HD Voice
  • Up to 16 SIP accounts, with Firmware V73 loaded
  • Hands-free speakerphone with full-duplex
  • Support for Yealink EXP40 expansion module
  • RJ9 Headset Port
  • Backlighted 7″ 800 x 480-pixel color touch screen
  • Wall mount
  • Support for PoE power supply


You should add that the T48G model secures clear calls to and from the PSTN. It provides crystal clear voice quality when calling office extensions and SIP phones.

A picture of the Yealink T48G VoIP Phone highlighting features like non-slip rubber pads, scratch resistance, and anti-tangle cord.

Source: Yealink


Communication through SIP over Transport Layer Security (TLS/SSL) provides additional layer of security for your business communications that are compatible with 3CX, Asterisk and BroadSoft Broadworks.

The Verdict

Featuring scratch resistant surface, metallic texture, non-slip rubber feet, and ergonomic recessed buttons, the T48G VoIP phone is a solid choice for any business user who communicates a lot over phone. T48G is not a starter VoIP phone and its price reflects is not particularly low. Nonetheless, with the option to manage up to 16 SIP lines and its durability, the T48G is a good choice for businesses who have intense VoIP communications.