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 ,SIP-T26P and SIP-T38G
expansion module(<2) is powered by the host phone
Physical Features
2xRJ-12(6P6C) ports for data in and out
Power adapter: AC 100~240V input
and DC 5V/1.2A output
Weight: 255g
Dimensions: 132x143x42mm
Operating humidity: 10~95%
Storage temperature: max 60 °C
