Hello, We have an 848 that does not reliably display caller ID info. We have went though kxta tech support numerous times, plus our vendors and suppliers tech lines. We have swapped the entire system, caller id card had the telco company out numerous times also. still no caller id. it does display caller id on a generic caller id box. we do hear the fsk at 1st/2nd ring, grounds ok and loop current within spec. all ksu setting have been changed, fsk w/visual and so forth. funny thing is that sometimes it does display caller id info. we was thinking out of spec caller id info; but remember the generic box displays caller id info. go figure, any help or insight appreciated. thanks in adavance

Bill