telecom@ucbvax.ARPA (09/14/84)
From: Jon Solomon (the Moderator) <Telecom-Request@MIT-MC> TELECOM Digest Friday, 14 Sep 1984 Volume 4 : Issue 85 Today's Topics: Re: TELECOM Digest V4 #82 (new telephone channels) Info about telephones? Michigan Bell and BBN Equal access [Kahin: Fiber Optics] odds & ends "smart" phones dialing only 7 digits Determining your own phone number ---------------------------------------------------------------------- From: ihnp4!houxm!homxa!mzk@Berkeley Date: 10 Sep 84 11:20:59 CDT (Mon) Subject: Re: TELECOM Digest V4 #82 (new telephone channels) What are ITFS && MDS. Thank you. ------------------------------ Date: Mon 10 Sep 84 20:24:50-EDT From: Bob Soron <Mly.G.Pogo%MIT-OZ@MIT-MC.ARPA> Subject: Info about telephones? Can anyone recommend a book (or detailled yet easy-to-find magazine article) on telephone installation? Our house is hard- wired, and I'd like to replace our old ten-button touchtones with something a little more modern. Thanks... ...Bob ------------------------------ Date: 11 Sep 84 16:16:32 EDT From: dca-pgs @ DDN1.ARPA Subject: Michigan Bell and BBN Congrats to BBN; I understand that they won a sizable contract from Michigan Bel to build a large data network. Can anyone out there supply some more info on this project? Will the net be based on C/30 IMP technology (indeed, will it be based on packet switching?)? Will BBN implement other facilities, such as E-mail, and what will they use? (i. e., C/70, VAX, etc.) is Is this BBN's first venture in building common carrier facilities? Many apologies for typos; this thing doesn't backspace. Best, -Pat Sullivan Defense Switched Network ------------------------------ Date: Mon 10 Sep 84 21:09:10-EDT From: Robert S. Lenoil <LENOIL@MIT-XX.ARPA> Subject: Equal access Living in the Back Bay, I have just come under equal access, and completed a semi-rigorous review of what the various long distance carriers have to offer. I initially am going with MCI, but NOT for their low rates. (on the contrary, MCI had the highest rates, next to AT&T, on calls from Boston->New York) You see, MCI is giving me one hour's worth of free calls, worth about $12.50. After I've used up the $12.50, I will change carriers for a $5.00 fee, for a $7.50 profit. My next target is USTel, which claims it will enclose $25 in coupons along with my second month's bill. I might actually stay with USTel, as they are AT&T resellers (which means their quality should be comparable to AT&T's), and they were among the lowest priced carriers for the Boston->NY mileage band. Presently, before my MCI presubscription goes into effect, I am using ALLNET. They are also AT&T resellers, and though the setup time is slightly longer, the call quality is just fine. ALLNET's prefix is 10444, and as they have a billing agreement with NET, anyone can use their service. Also, ALLNET and USTel both claim to bill in 6 second increments. I am eager to see how this looks on the ALLNET bill section generated by NET. ------------------------------ Date: 11 September 1984 20:59-EDT From: Steven A. Swernofsky <SASW @ MIT-MC> Subject: [Kahin: Fiber Optics] Date: Tue, 11 Sep 84 12:05 EDT From: Kahin@MIT-MULTICS.ARPA Subject: Fiber Optics To: *bboard@MIT-MC.ARPA Communications Forum Monday Seminar Series on FIBER OPTICS Dr. Stewart Personick Bell Communications Research "Optical Fiber Technology and Applications" Optical Fibers; Sources and Transmitters; Detectors and Receivers; Optical Components; System Phenomenology; Telecommunications Trunk ing; Data Links; Local Area Networks; Analog Links; Broadband Networks; Measurement and Sensing Systems; Emerging Technology and Applications (Integrated Optics, Heterodyning, Photonic Switching) First meeting: September 17, 1984 Room 36-144, MIT For further information: (617) 253-4181. ------------------------------ Date: Wed, 12 Sep 84 9:12:00 EDT From: Carl Moore (VLD/VMB) <cmoore@Brl-Vld.ARPA> Subject: odds & ends Would some hotels charge if you just picked up the phone and got dial tone and made no call? On July 2, I saw the following exchanges in use at Mount Vernon, Va. (area code 703): pay phone was 780 (local service to DC & suburbs) but a charge-phone right next to it was 781 (local to DC & Va. suburbs but not to Md.) Jan. 1984 Northern Virginia (DC area suburbs) directory mentions a restricted calling card good only for calling a particular phone number (such as calling home from college). Comments on 1+ coming to New Jersey: Even without NXX exchanges, 1+ makes some exchanges, currently available as local calls just over the area-code border, also available within one's own area. (For example, Trenton has local service to 736 in Morrisville, Pa., and 1+ makes possible the use of 609-736 distant from Trenton.) Requiring 0+areacode (not just 0+) within the area is a feature of areas using NXX (except in Los Angeles area), and we've been told in this digest that area 201 will need NXX (any timetable on this)? How does all this affect 609? I have heard that most NJ phones won't even shut off the dialtone on leading 1+ (and this now has to change). I dial 1+ by hitting the switchhook. This does fail on rare occasions. Cases of 1+ on non-toll calls I know about: Local (and message-unit) calls going over areacode line in NYC and Los Angeles areas. (Must dial 1+areacode+ local number for this.) From 261 & 621 prefixes (and at least 1 other) in Md., the phone book (Laurel or Md. Suburban) says to dial 1+number ("this is not a toll call") to reach 569 in Md., because 569 without the 1+ is a local call to Springfield, Va. In area 215 (Phila., etc.) in exchanges adjacent to the Phila. metro area, you can get Phila. metro service, and dial 1+number to get Phila. metro area numbers not already included in flat rate or extended flat rate areas. [Boston Metropolitan service also crosses the 1+ boundary in many places (especially those outside Rte 128). Boston Central Exchange doesn't include those 1+ areas in the Metro calling area. --JSol] ------------------------------ Date: Thu, 13 Sep 84 00:10:47 pdt From: tamir@Berkeley (Yuval Tamir) Subject: "smart" phones I am interested in purchasing a "smart" phone that has the following features: (1) Speakerphone (2) Tone/pulse dialing (3) Memory for at least 10 numbers (4) Automatic continuous redial of busy numbers One model that has these features is the Panasonic 2130. It retails for $99 around here. Its main disadvantage is that it will automatically redial busy numbers for a maximum of only 15 times. If you are trying to reach, say, the IRS, you may want it to continue redialing as fast as possible for hours . . . I am looking for recommendations or warnings about specific models (the Panasonic and others) that provide the above features. If there is sufficient response, I will post a summary. Yuval Tamir ARPANET/CSNET: tamir@Berkeley UUCP: ucbvax!tamir ------------------------------ Date: Thu, 13 Sep 84 9:31:11 EDT From: Carl Moore (VLD/VMB) <cmoore@Brl-Vld.ARPA> Subject: dialing only 7 digits It has been noted that 1+ doesn't always mean a toll call, but note that when 1+ is in force, you CANNOT make a toll call if you dial only 7 digits. [That's not completely true. 1+ in many areas means "use a toll switch". It doesn't always mean that non 1+ calls will use the toll switch, nor does it say that non 1+ calls will always be local. --JSol] ------------------------------ Date: 12 Sep 1984 14:04-EST From: randy@uw-june.ARPA Subject: Determining your own phone number Several people have responded to my question of how to determine the phone number of your own phone (without calling Directory Assistance, etc.) In Seattle I have tried all of the following, none of which has worked: 1-200-555-1212 200-555-1212 *3113 1-200-222-2222 200-222-2222 These generally come back with a "Your call can not be completed as dailed" message, although one came back with a "Please check your owner's manual" message. The best idea so far was a suggestion to call 911 and ask them what number you are calling from. Anyone else know how to determine your own number? Randy Day. UUCP: {decvax|ihnp4}!uw-beaver!uw-june!randy ARPA: randy@washington CSNET: randy%washington@csnet-relay ------------------------------ End of TELECOM Digest *********************