line current drops to 0 for around 40 seconds, after a timed delay, both are flexable. changing then will alter hook flash timers. have them publish what the need, and post that, maybe someone has that setup. i can't help a lot with those timers, not being at work to check the switch. if you can deny hook flash for those ext, dialogic may see the disco. to find the exact timing, connect a miliamp meter in SERIES with ine side of the line. one thing i have learned about dialogic, let's just say they need a division that is named not very logical at all.
john poole
bellsouth business
columbia,sc