Compatible with IP403, IP406 V1, IP406 V2, and IP412 control units; Digital station ports for use with 2400, 4400, 5400, and 6400 series digital telephones. Also compatible with 3810 and TransTalk 9040 wireless.

IP400 Office Analog Trunk 16 provides an additional 16 Analog trunks (loopStart or groundStart) and two power failSockets. Included: IP400 EXP RJ45/RJ/45 1M Blue For Connecting Expansion Module to Base Unit. Not Included: Power Lead and Trunk Cable(s).

Use with ground trunks requires that the trunk module and the IP Office control unit are grounded

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