Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!aplcen!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!wuarchive!swbatl!adams From: adams@swbatl.UUCP (4237) Newsgroups: sci.electronics Subject: Re: Trace-Back on phones Message-ID: <1069@swbatl.UUCP> Date: 21 Dec 89 14:44:06 GMT References: <89256.111005BHB3@PSUVM.BITNET> <4344@aplcen.apl.jhu.edu> <1732@limey> Reply-To: adams@swbatl.UUCP (Tom Adams 5-4237) Distribution: sci Organization: Southwestern Bell Tele. Co. - Advanced Technology Lab - St. Louis Lines: 13 In article <1732@limey> sheriffp@limey (Peter Sheriff) writes: >isn't one I know about. I am now working on the development of one of >the latest C.O.s and again, this "feature" is not on the list. If >anyone knows any different please tell me and I will talk to the >designers here and get our system updated. I believe the reference is to the out of band info in SS7 (signaling system seven). I don't know of Canadian plans, but SS7 will eventually become widespread in the US, and allow features like automatic number identification, call traceback and screening and other goodies. -- uunet!swbatl!adams or adams@swbatl.swbt.com | Tom Adams: 314-235-7459 BOOKS WANTED: pre-1930 radio, electrical & scientific topics.