I have a mics and a bcm in 2 plants that wish to page each other from any phone line. I have heard of this but never had to connect before. They both have an external amp and 70v speakers. Any ideas?
the only way that i have been able to do this is using the disa dn, but it you are trying to do this by dialing an access code you'll need tie lines, but i have not used it that way.
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