Cacique

I figure I share my finding just in case anyone runs into the same problem.

I was recently trying to setup a preconference on an SL-100. My problem was that one of the conferee numbers appears on a MADN and also on an analog phone (2500). If you dial the number it works fine, but when you initiate the preconference only the primary number would ring or work . After much research we found out that there is an option that is not on the documentation, but it shows on table Preconf PCNFOPTN. You have two options, NARS and MADNOPT.

If you select MADNOPT it will work.