The Yealink VoIP Expandable Telephone Module improves the power and flexibility of Yealink SIP-T28P and SIP-T26P IP phones (sold separately).
- 38 programmable keys each with a dual-color LED.
- Daisy-chain up to 6 modules for 228 programmable keys.
- Dual-color (red and green) LEDs share line status information.
- Supports Busy Lamp Field (BLF) and Bridge Line Appearance (BLA).
- Features: Speed dialing, Call pickup, Intercom, Hold, Transfer, Voicemail, Forward, DND and more.
- This expansion module is powered by the host phone. (sold separately.)