We have 6 new classrooms that will make use of the cat5 network for the phone system. A company has charged a large amount to supply rj45 to analogue phone adapters, as well as the phones themselves.
I can see the adaptors on ebay for very cheap, though not sure about master/secondary option?
Also, if I bought a cordless phone for each classroom from, say Argos, would they all interfere with each other? The classroom layout is 3 up 3 down.
Thanks in advance!