Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!accuvax.nwu.edu!nucsrl!telecom-request From: Rob Warnock Newsgroups: comp.dcom.telecom Subject: Re: Distinctive Ringing Recognition Message-ID: <8291@accuvax.nwu.edu> Date: 26 May 90 03:18:30 GMT Sender: news@accuvax.nwu.edu Reply-To: Rob Warnock Organization: Silicon Graphics Inc., Mountain View, CA Lines: 47 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 10, Issue 387, Message 1 of 12 In article <8238@accuvax.nwu.edu> John Higdon writes: | > The tone pattern is standard ring for my regular line, and two longs | > for the kiddie line. | This is one of the things (along with Centrex, pagers, answering | services, and other heavy DID customers) that is responsible for the | depletion of our NPAs. CLASS could eliminate much of the waste. For | instance, answering services would see which customer was forwarding | to their *one* number and answer accordingly. No DID required. I'm suddenly (if whimsically) struck by the analogy to computer networking. What we have had up 'til now is "hot to host" connections. Maybe (given the capabilities coming in ISDN) we need to add "port numbers" to our NPA plan? 1/2- ;-} So just like HostA connecting to hostB says what well-know service is wanted at hostB by specifying a port (a.k.a. socket) number, maybe there could be a way to append a port number ("sub-listing number"?) to a standard number: "Dial 1-800-555-1212-#57 for information regarding 'love lines'" or personalized listings in phone books: Doe, John E., family.....555-1212 John E.................555-1212#31 Mary Sue...............555-1212#32 Billy..................555-1212#33 Suzie..................555-1212#34 BBS....................555-1212#38 FAX....................555-1212#39 And of course, if you could provide a *source* "port" number when placing a call (maybe with a *NN before the call?), you could authenticate yourself or provide distinctive ringing, or whatever. (Yes, I *know* the BSD hack of "ports < 1024" is not secure!) Just a thought... ;-} Rob Warnock, MS-9U/510 rpw3@sgi.com rpw3@pei.com Silicon Graphics, Inc. (415)335-1673 Protocol Engines, Inc. 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311