[Asterisk-Users] External call initiation

[Jim Dossey]

I have a client who needs to be able to initiate an outgoing call from a
legacy Unix application.  They use a legacy accounting system on a Unix
system using CRT as a telnet client.  They have the ability now to have
the Unix system auto-dial their phone to place a call.  For example,
they can pull up a customer or vendor record in CRT.  The application
uses the CRT "pass-thru" option to pass a modem dial string through
their PC to a modem plugged into the PC's serial port.  The modem is
attached to their telephone so that they lift the receiver, pick an
outgoing line, and the modem dials the number.

I need to be able to do that using Asterisk and a SIP phone (or an ADSI
phone).  Any ideas?  Is this possible?

I was thinking that maybe there would be a way for the Unix box to
command the Asterisk box to connect to the SIP phone, and place the
outgoing call, and then join those 2 connections together.

TIA