1532-[01-64]: External Page Line Ringing
[System:
Options:
Ring Control:
Ring Control (1532):
Line (01-64) / Ring Control]
If
1531-01: External Page Ring Type [System: Options: Ring Over Page: Ring Over Page (1531): Page Ring Type]
is 2 (line), use this option to individually set the ringing for each line over the External Page.