[comp.sys.next] Controlling phone lines via computer

clp@wjh12.harvard.edu (Charles L. Perkins) (07/02/89)

I am planning to buy a NeXT computer and use two phone lines for an advanced
 phone mail and remote-control application I'll write.  NeXT has a miked in
 and two (L+R) sound out channels, but I will need:

 (1) The ability to control on/off-hook on each line, detect the state of the
      line (query it non-intrusively), maybe generate ring to attached phones,
      and other low-level tasks.

 (2) Interface RCA line-level outs to the phone lines.
 
 (3) Interface the phone lines to the miked input and be able to switch between
      the two lines (hopefully FAST) for alternating input between them.

I am willing to build whatever I need, but need help finding information and
 details necessary for such a project.  Anyone with help, knowledge of products
 that exist (with serial port connectors would be best), or pointers would be
 rewarded by praise and lavish thanks.
								Charles
							  clp@wjh12.harvard.edu