NorStar Compact Ics WithClid Trunk Mod (ntbu0686) "caller id nortel" Questions

Caller ID Upgrade I have a NorStar (Nortel) Compact ICS with a standard Norstar LS/DS Trunk Cartridge.  This setup doesn't support Caller ID.  Can I simply power down the ICS and replace the

...caller ID screens? Simple,, its your filters. do you have one or two fiters fitted. one at the wall and one at the pc/laptop... unplug and plug back in. Sometimes this does work. if not you need new ...