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  1. wearyhacker

    vth5221d user setup

    I have some vth5221d generation 1 video intercoms that I want to setup in a master and slaves relationship. The master is setup as room number 9901 and the slaves are setup as 9901-1, 9901-2 etc. All goes well until I tray to make a call. For example calling the master from the unit with room...