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Ships within 48 hours · Estimated delivery Oct 6 - Oct 11
allowing for single-source electricity without an additional power supply
Ring tone selection/Import/Delete
Incoming calls are indicated by a flashing LED and audible warble tone
Polycom HD Voice
Hearing Aid Compatible
Yealink EXP39 LCD Expansion Module Category_Best4Systems/Phones/Analogue Corded Phones allowing for single-source electricity without160x320 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 Dual color LED for 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
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