[Asterisk-Users] FXO ATA?

[Chris Mason (Lists)]

Is the Sipura 3000 the only way to interface a remote pstn line and connect
incoming calls to Asterisk? I have a location connected by network that has
a phone line, when the room is occupied I want the line ti ring there as
normal, but when the employee is travelling I want the line to be conencted
to a ATA that then feeds it as an incoming pstn line to the pbx located at
my office so it can follow her.
It sounds like the Sipura 3000 would be perfect, what else would do it?

Chris Mason