Yealink EXP40 Expansion Module for T46G/T46S/T48G/T48S Speakers it offers a built-in headset

it offers a built-in headset port

The Yealink PS5V1200US serves as a vital solution for users seeking to power their compatible Yealink IP phones in situations where Power over Ethernet (PoE) is unavailable on their network

and Volume Control

Avaya IP500 Digital Station 16/16A/16B/16B2 Expansion Module

Designed to cater to the needs of both information workers and managers with light to occasional voice communication needs

Yealink EXP40 Expansion Module for T46G/T46S/T48G/T48S Speakers it offers a built-in headsetThe Yealink EXP40 Expansion Module is a valuable addition to the T46G, T46S, T48G, and T48S IP phones, enhancing their functionality with additional programmable buttons and a backlit LCD display. With a total of 40 programmable buttons available, users can customize them for various purposes such as directory numbers, speed dial, or feature keys. This expansion module is particularly well suited for receptionists or individuals who manage high call