IPHONE RINGS 4 DIFFERENT DEVICES

IPHONE 6 UPGRADES OS8*

I HAVE 17 LINES of WHICH 10 SHARE MY APPLE ID DUE TO MY KIDS, SPARES AND PHONES ASSIGNED TO OTHERS BUT I HAVE FINANCIAL RESPONSIBILITY AND THIS HAS ENABLED ME TO FIND MY PHONES, THUS I CANNOT SEE HAVING 17 DIFFERENT APPLE ID'S AND TO THIS POINT IT HAS NEVER BEEN AN ISSUE. THIS HAS BEEN THE STATUS FOR OVER 8 YEARS WITHOUT ANY ISSUES.

SO THATS BACKGROUND, THIS IS MY PROBLEM

I GOT NEW IPHONES 6 UNITS TO REPLACE 2 LINES I HAVE.

I USED UPGRADES FROM 2 OTHER LINES (NOT THE LINES THAT ACTUALLY GOT THE IPHONE 6 UNITS)

SO NOW SOMEONE CALLS ME, ALL FOUR DEVICES RING.............THE OLD TWO LINES AND THE NEW TWO LINES

IF THE CALL WAS DIRECTED TO PHONE 1 AND SOMEONE ANSWERS FROM THE OTHER 3 DEVICES THAT ARE RINGING, THE CALL FAILS.

ANYONE ONE OF THE FOUR NUMBERS, RINGS ALL DEVICES......

WENT TO ATT AND SWAPPED SIM CARDS ON ALL FOUR DEVICES.........

SAME ERROR.......

TURNED OFF IMESSAGE, FACETIME, ....................

SAME ERROR

MADE SURE NUMBERS AND EMAILS DID NOT OVERLAP IN FACETIME, IMESSAGE OR ICLOUD SETUPS...........

SAME ERROR

SO SINCE IT HAPPENED WITH IPHONE6 AND OS8, NO TELLING WHICH WAS THE CAUSE, BUT HOW SHOULD I GO ABOUT TRYING TO FIX IT, AS I HAVE 6 more IPHONE 6 units on the way, which could make 10 phones all ring at the same time if we don't find a way to resolve, which means returning them all and going back to the 5.

And please don't tell me to keep track of 17 apple ID's, passwords, and setups, and cc accounts for 17 apple ID's as your fix.