- Yealink LCD expansion module- 160x320 graphic LCD with 16-level gray scales- 20 Physical keys each with a dual-color LED- 20 Additional keys through page switch- Supports up to 6 modules daisy-chain- Different icons for each function shown on the LCD- Dial-color LED for status information- Supports busy lamp field bridge line appearance- Programmable for speed dialing call pickup intercom hold transfer voicemail forward DND- Applies to Yealink IP phone SIP-T28P and SIP-T26P and SIP-T38G- Expansion module is powered by the host phone- 2xRJ12 6P6C ports for data in and out- Weight 290gYEAEXP39
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