IVX128 C class with an analog port available. Current set up is a Valcom controller with door phone and strike using a CO line. Problem is there’s a ring delay of 10-15 seconds.

1. Is there a programming (or other) solution to the ringing delay?

2. Is there another solution using analog port (or other method) vs using the CO line? Aside from solving the ring delay customer could use the CO line that's currently dedicated to the door phone/strike