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DOOR PHONE INTERFACE UNITThe Door Phone Interface ETU allows 4 DP-D-1A door phones to be connected
16 selectible DIP switch for multi-casting group matching easily
PLANET DDNS/PLANET Easy DDNS
Grandstream's GXP1615 is a full duplex speaker phone with HD audio that supports 1 SIP account and 2 line keys with Power Over Ethernet (PoE)
UV protection for installation in sunlight
Telematrix 3500MWS, 3500 Series USB – Analog Corded, 1 Line, Black, Part# 35A110S0DU Card Readers & Accessories DOOR PHONE INTERFACE UNITThe DoorThe high performance Telematrix 35A110S0DU 3500MWS is a part of the 3500 Series USB Analog Corded with 1 Line, 0 GSK, MW, Basic, Speaker, 1 USB in Black Features: Available in 1 or 2 line configurations USB charging port optional Speakerphone or non speakerphone 0, 3, 5 or 10 programmable Guest Service Keys Patented OneTouch voice mail retrieval technology Dual Neon LED message waiting light SIP Standard voicemail messaging (VoIP phones) LED indicator
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