First the telco information is correct as to pair colors and line numbers.
I would need more information to help you find your problem.
What jacks and what type of pin-out was used at the jacks that you are trying to connect to?
Is this a three line telephone or 3 single line telephones?
If it is a three line telephone do multiple line come in on a single jack? if so How many lines/Jack?
Briefly, regarless of the jack type or "normal" wiring, line 1 (white/blue) is always on the center two pins of a jack. if it is a six conductor jack then it is on pins 3 & 4, If it is an 8 conductor jack then it is on pins 4 & 5.
Line 2 now gets a little trickier because there are 3 possible "normal" senarios.
1. 6 conductor jack (RJ-25) 2nd line is on pins 2 & 5
2. 8 conductor jack wired to RJ-61x & T568A line 2 is on pins 3 & 6
3. 8 conductor jack wired at T568B pins 1 & 2 (This one willnot work with most standard telephone equipment.
Line 3 now gets a little worse
1. 6 conductor jack pins 1 & 6
2. 8 conductor jack wired to RJ-61 pins 2 & 7
3. 8 conductor jack wired to T568A pins 1 & 2
4. 8 conductor jack wired to T568B pins 4 & 5
There are numerours sources of these various pinning standards. Check this site for a single source of all these that I have mentioned as well as some additional to see if this helps you sort out your wiring.
If you do post a follow-up question, please address me as "Joe" and the other experts will bypass your question and leave it for me to answer.
Joseph Golan, RCDD