We have a Samsung iDCS system at my office.
There are 3 units which are set to auto answer, so that they automatically go to speakerphone & pickup rather than ringing.

One iDCS 18D unit in our office overrides the auto answer setting & instead rings when calling these other 3 units.

I've looked in all of my documentation to try and find a setting that may be causing this, but cannot find anything.

Does anyone know of a setting that could cause this... or even how to set that unit's settings back to the factory default?

I am assuming the problem is with the unit I'm calling from (not the units I'm calling to), as this does not happen with any other units in the office.

I'm not sure if this is related, but this problem unit also has no dial tone when you pick up the reciver. It does once you select an outside line, but all other units have a dial tone before you select an outside line or dial an internal extension.

Thank you,
Andy