Conference call between two obi 200s?

[tweaky]

I've read how to switch a call from on obi200 to another, but wondered if it's possible to set up a three-way conference call between the two obis and an outside caller.

Thanks in advance for any pointers...

[azrobert]

It's the same for any other conference call
Place a call
Hit Flash
This will put the call on hold and you will hear dial tone
Place another call
Hit Flash again will connect person on hold