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Joined: Mar 2001
Posts: 3,869
Member
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Member
Joined: Mar 2001
Posts: 3,869 |
If you look on the side of the further most left card card it will tell you the software.
It could be RCTUA V1 (very old) or RCTUBA V4 and the card to the right connected to it RCTUBB which would be newer two cabinet software.
Newer software released when the 424 came out will upgrade the 280 to the equivalent of a 424 so it is possible you could have very new software in a very old 280 cabinet.
Dial tone has to go to both the RCOU/RCOS card so the phones get dial tone and ALSO to the RCIU/RCIS cards so the caller ID information is passed to the CPU and displayed on the phones.
Just turning on Caller ID at the phone company will do nothing at all for you without the RCIU/RCIS cards and the software programming.
THE Bracha, old blond specialist in Rube Goldberg solutions.
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