Seems the NEC-Philips person gave me less than adequate information. Silly me for believing a salesman.
Three DSS modules will give me all the buttons I need, which greatly relieves my mind.
Many thanks for that.
I am implementing a communications system for a railway. Part of this involves providing telephones in the tunnels.
The customer's prefered solution is that the telephones autodial to a specific extension in the control room, terminating at a digital phone with extension keypads - the idea...
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