Check the listing for details. Yealink EXP38 IP Phone Expansion Module w/ 38 Prog Keys Dual Color LED Asterisk. Color: Black, Condition: New. Listed at 99.00 USD. DLI-PRO 8+2 Wireless Web Power Switch WiFi Remote Power Reboot Welcome to Tech r us store online Store home Items For Sale Feedback Contact Us Adapter Aviosys Bags Computers Games Gadget cases Networking View all categories Yealink EXP38 IP Phone Expansion Module w/ 38 Prog Keys Dual Color LED Asterisk General InformationMPN: EXP38 Offer Increased Call Control and FlexibilityFeatures 38 programmable keys each with a dual-color LEDCreates up to 228 programmable keys when 6 EXT are daisy chained DescriptionSupports the functions for IP-PBX such as BLF/BLA and Intercom etcYealink EXP38 Expansion Module is designed for improving the power and flexibility of Yealink advanced IP phones SIP-T28P & SIP-T26P. It features 38 fully programmable DSS keys each with a dual-color LED, connected to and controlled by the IP Phone with an RJ-12 cable line. It creates up to 228 additional programmable extensions when 6 EXP38 are daisy chained with the IP Phone. Yealink 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. Yealink 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. FeaturesMain Features38 programmable keys each with a dual color LEDDaisy-chain 6 modules for 228 programmable keysDual color (red or green) LEDs for line status informationSupports 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(