Dr. Dobb's Journal September 1998
-- ISDNREC version 1.0 -- Common-ISDN-API 2.0 detected Waiting for incoming call... Incoming 3.1kHz audio call Number Called = 301 Caller's Number = 01817110400 A-Law speech Answering Call... Channel open Data Channel is open Sending Outgoing Message Recording Message ............+..+..........................................+++***+++++........ ++*+*****++*++*+++**++.++++*++++**++++++***++.+..++++.++++++++........ Hangup Recording Completed ISDN Disconnect: Normal