EXP38- Expansoin Module
Model: EXP38- Expansoin Module
Product brochure: 
Product Overview
Venceip EXP38 Expansion Module is designed for improving the power and flexibility of Venceip advanced IP phones VSIP-T28P & VSIP-T26P. It features 38 fully programmable DSS keys each with a dual-color LED,connected to and controlled by the IP Phone with a RJ-12 cable line. It creates up to 228 additional programmable extensions when 6 EXP38 are daisy chained with the IP Phone.Venceip advanced IP phones support the functions for IP-PBX such as speed dialing, BLF/BLA, intercom,call forward/transfer/hold/park/pickup/return on each of the programmable buttons on the EXP38.Venceip EXP38 is ideal for receptionists, administrative assistants, call center agents, power users, and executives who need to monitor and manage a large volume of calls on a regular basis.
Main Features
38 programmable keys each with a dual color LED
Daisy-chain 6 modules for 228 programmable keys
Dual color (red or green) LEDs for line status information
Supports Busy Lamp Field(BLF), Bridge Line Appearance(BLA)
Programmable for speed dialing, call pickup, Intercom,
hold, transfer, voicemail, forward, DND...
Applies to Yealink IP Phone SIP-T28P and SIP-T26P,
expansion module(<2) is powered by the host phone