[Asterisk-Users] Some questions about a potential usage scenario for asterisk

[James Sharp]

> There is the other hurdle of clients with existing PBX systems in place.
> I've no idea how we'll cover this scenario as I'm sure most clients will
> be
> reluctant to replace their existing systems, unless of course asterisk can
> be "plugged" into some of these systems?!?

Yes, it can.  If the PBX in question has provisions for attaching an
analogue line or extension, then asterisk can be connected to the PBX.