I have a DSX 40. Customer wants to have a Valcom 1030 Horn installed ONLY for it to ring. If I change the settings in 2101 and 2105 for audio port, will that work? He does not care to Page.

Have you explored 1531 in system options?

2101 and 2105 no

Just hook to page port and have it ring on lines.

1531 worked. I'll test with ring on lines also , thanks

good thanks for the heads up.