You said:
QuoteI added a second number on the same line
Does that mean the 2nd number in coming via SP1 or SP2?
Ring patterns are set at the SP trunk level.
If both numbers are coming in via SP1, you can't set a different ring pattern for the 2nd number.
Assuming the 2nd number is on SP2, change the following:
Voice Services -> SP2 Service -> DefaultRing
Set it to "2" for a triple ring.
Set it to "3" for a double ring.
The ring pattern is determined by a combination of X_RingProfile and DefaultRing.
The ring profiles are found here:
Ring Settings -> Ring Profile A/B
You need to use OBi Expert to find and modify these.