Digium 1VPM128LF Echo Cancellation Module by Digium at Tobby News. MPN: VPM128. Hurry! Limited time offer. Offer valid only while supplies last. Digium
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mpn: TR114I4L, ean: 0777816010072,
TR114+I4L - Brooktrout...
mpn: VC-V-2900, ean: 0012302184890,
- Single dooranswering device- Provides two-way communication (does not provide door unlock capability)- Built-in talkback amplifier- Ring generator- Transmit and receive volume control- Includes a VC-VP-324 power supply- Compatible with all Valcom d...
By DoorBell Fon
mpn: DP38SF, ean: 0648181796314,
Answer door and gate from telephone. Controller can operate two entry ways with distinctive tone. Built in call waiting. Two way communication up to 4000 ft. distance. CAT5 twisted pair cable. Connects to two line, PBX and key stations. Operate on on...