1300032 Yealink Yealink T4 Series Phone Accessory

The Yealink Expansion Module 40, part number 1300032, is a hardware add-on designed to extend the functionality of compatible Yealink SIP desk phones. This expansion module provides additional programmable buttons, allowing users to configure speed dials, BLF (Busy Lamp Field) keys, and other telephony functions directly from the module’s interface.

The EXP40 is typically deployed in busy office environments where users need quick access to multiple lines, contacts, or features. It is particularly useful for receptionists, executive assistants, and call centre operators who handle high call volumes and require visibility of colleague availability or rapid call transfer capabilities.

This expansion module is designed to connect seamlessly to Yealink’s T4 series IP phones, including models such as the T46G, T46S, T48G, and T48S. Multiple modules can be daisy-chained to further increase the number of available programmable keys.

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