TELECOM Digest     Thu, 2 Jun 94 11:22:00 CDT    Volume 14 : Issue 267

Inside This Issue:                          Editor: Patrick A. Townson

    FCC Fact Sheet on Future Changes in Telephone Numbering (Bob Keller)
    2nd Radio Montreux (June 9-11) (Alfredo E. Cotroneo)
    NYNEX Bill Insert - Rate Changes (Jonathan Welch)
    Spread Spectrum Video (Charbel Tannous)
    ATT/MCI Numbering War (Rick Watson)

TELECOM Digest is an electronic journal devoted mostly but not
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----------------------------------------------------------------------

Date: Thu, 2 Jun 1994 11:40:10 EDT
From: Bob Keller <rjk@telcomlaw.com>
Subject: FCC Fact Sheet on Future Changes in Telephone Numbering



nrcc4029.txt ==> from ftp.fcc.gov

                     FEDERAL COMMUNICATIONS COMMISSION
                        INDUSTRY ANALYSIS DIVISION
                                FACT SHEET

     MAY 1994

                   Future Changes in Telephone Numbering

Several important changes will affect the North American Numbering
Plan during the next few years.  These changes will require telephone
companies to modify their network switches.  They will also require
some users to modify their customer premises equipment.  The equipment
affected includes payphones and privately owned switchboards
(generically known as private branch exchanges or PBXs).

This Fact Sheet has been prepared to answer the most frequently asked
questions about upcoming changes in telephone numbers.  It also
provides sources of further information and assistance.

                        Interchangeable Area Codes

Currently, the second digit of an area code is always "0" or "1". 

All usable three-digit numbers in this format have been assigned as
area codes.  Beginning in 1995, new area codes will have numbers other
than "0" or "1" as the second digit.  As a result, area codes will
have the same format as the central office codes that appear at the
beginning of local telephone numbers -- hence, the term "interchangeable" 
codes.

Three interchangeable area codes have been assigned for service during
early 1995.  These new area codes will be placed in service in Alabama
(334), Washington State (360), and Arizona (520).

Some parts of the telephone network -- including both telephone
company switches and customer equipment -- were not designed to handle
interchangeable codes.  When a call to an interchangeable area code is
attempted from such equipment, the call will not be routed correctly.
Therefore, this equipment must be reprogrammed, modified, or replaced
in order to handle the dialing of interchangeable area codes.

                          New Dialing Procedures

Dialing procedures have traditionally been determined by local
telephone companies and state public utility commissions.
Consequently, they are not uniform, especially for toll calls that
originate and terminate within the same area code.  Over a period of
many years, three basic dialing procedures have evolved for toll calls
that do not cross an area code boundary.  In some states, such calls
are made simply by dialing a seven-digit number.  In other states,
these calls are placed by dialing "1" as a toll indicator, followed by
the seven-digit number.  In still other states, toll calls within the
same area code are placed by dialing "1" plus ten digits (the local
area code plus the seven digit number).

When interchangeable codes are activated in 1995, the prefix "1" will
be used to indicate that the call is longer than seven digits.  This
means that the "1 plus 7" method of dialing toll calls within the same
area code will no longer be feasible.  Each state that used "1 plus 7"
dialing has selected one of the other two dialing options.  Some
states have already completed the change and others are in the process
of doing so.

The use of "1" as an indicator of ten-digit calls means that, in most
areas, systems cannot rely on a leading "1" as a toll indicator.  PBXs
or other switches that have been programmed to block toll calls based
on the use of "1" as a toll indicator will need to be altered.

                    Conversion to 101XXXX Access Codes

Callers sometimes reach long distance carriers by dialing carrier
access numbers in the format 10XXX (where "XXX" represents a carrier's
three-digit identification code).  AT&T's code is 288, MCI's is 222,
etc.  Thus, customers can reach AT&T by dialing 10288, reach MCI by
dialing 10222, etc.  Because almost all three-digit identification
codes have been assigned, four-digit identification codes will be
assigned in 1995.  Carriers with four-digit identification codes will
be reached by dialing 101XXXX.

Under current law, new equipment manufactured for use by aggregators
(PBXs or key systems used by hotels, motels, hospitals, universities,
payphones, and others that provide telephones for "transient" users)
must be capable of processing 10XXX access code dialing.

Newly manufactured equipment should have the capability of processing
101XXXX dialing, but some payphones and other older equipment will not
be able to complete calls to 101XXXX numbers.

During a transition period, both 10XXX and 101XXXX access codes will
be used.  At the end of the transition period, all access codes will
use the 101XXXX format.  The transition period will provide owners of
non-conforming equipment with time to modify, reprogram, or replace
that equipment.  However, users of such equipment will not be able to
reach carriers with the new four-digit identification codes until
modifications are made.

The FCC has proposed a transition period of six years.  Thus, users
may have several years to make the necessary changes.  The date when
such changes will become mandatory has not yet been established.

                  Longer International Telephone Numbers

Under international agreements, international telephone numbers are
now limited to 12 digits.  Beginning in 1997, the maximum permissible
length will be increased to 15 digits.

Although there are no plans to increase the length of telephone
numbers in the United States, Germany has announced its intention to
lengthen its numbers.  Several other countries are also likely to do
so.

When the length of international telephone numbers is increased, customer
premises equipment will have to store and process the longer numbers. 

                         Where to Go for More Help

For questions regarding specific customer premises equipment and what
must be done to ensure readiness to process the new numbers, users
should first consult the manufacturers or equipment suppliers.

Additional information is also available from the following sources: 

                                    ***

The North American Numbering Plan is administered by Bell Communications 
Research.  The administrator has prepared a report, Status of Numbering 
in the NANP Served Area, that provides more detail on each of the coming 
changes and includes the dialing plan in each state.  The report is
available without charge from:

          Claudette Keith
          North American Numbering Plan Administration
          Bell Communications Research
          Room 1E240
          290 West Mt. Pleasant Avenue
          Livingston, New Jersey  07039-2798
          201 740-6792
          201 740-6860 (FAX)

Questions on interchangeable area codes, dialing plans, and international
telephone numbers can be addressed to: 

          Garry Benoit
          North American Numbering Plan Administration
          Bell Communications Research
          Room 1B227
          290 West Mt. Pleasant Avenue
          Livingston, New Jersey  07039-2798
          201 740-4592
          201 740-6860 (FAX)
          
Questions on the expansion of carrier identification codes can be
addressed to:

          Jim Deak
          North American Numbering Plan Administration
          Bell Communications Research
          Room 1B227
          290 West Mt. Pleasant Avenue
          Livingston, New Jersey  07039-2798
          201 740-4594
          201 740-6860 (FAX)
          
                                    ***

The vast amount of information necessary for routing calls throughout
the telephone network is maintained by Bellcore's Traffic Routing
Administration.  The information is contained in large data bases and
most can be reached through on-line computer access.  Much of the
information can also be purchased in a variety of formats (paper,
tape, microfiche, and CD-ROM).

A catalog describing the products available can be obtained from the
Traffic Routing Administration Hotline at 201 740-7500.  For more
information, contact:

          Donald Baechler
          Traffic Routing Administration
          Bell Communications Research
          Room 1E235
          290 W. Mt. Pleasant Ave
          Livingston, N.J.  07039-2798
          201 740-7575
          201 740-6999 (FAX)
          
                                    ***

Local telephone companies and long distance carriers have been
preparing for the coming changes.  The United States Telephone
Association has prepared several information bulletins that are
available without charge.  These publications can be obtained from,
and questions about the telephone network can be addressed to:

          Dennis Byrne
          Executive Director
          Operations and Engineering
          United States Telephone Association
          Suite 600
          1401 H Street N.W.
          Washington, D.C.  20005-2136
          202 326-7296
          202 326-7333 (FAX)
          
                                    ***

The North American Telecommunications Association represents both
suppliers and users of telecommunications equipment.  They have
prepared a publication called The North American Numbering Plan: A
Guide to Preparing for the New Number Formats.  This publication can
be obtained for a charge of $25.00 by calling 800 538-6282, Ext. 260.
Questions can be addressed to:

          Mary Bradshaw
          Director, Industry Relations
          North American Telecommunications Association
          Suite 550
          2000 M Street N.W.
          Washington, D.C.  20036
          202 296-9800, Ext. 210
          202 296-4993 (FAX)
          
                                    ***

All of the publications referred to above are available in the Public
Reference Room operated by the Commission's Industry Analysis
Division.  Questions may be addressed to the Commission's staff at:

          Industry Analysis Division
          Federal Communications Commission
          1250 23rd Street N.W.
          Washington, D.C.  20554
          202 632-0745
          202 632-1411 (FAX)

    -FCC-


Bob Keller <KY3R>        Robert J. Keller, P.C.        Tel +1 301 229 5208
rjk@telcomlaw.com    Federal Telecommunications Law    Fax +1 301 229 6875
finger me for daily FCC info + see ftp.clark.net:/pub/rjk/ for other files

------------------------------

From: 100020.1013@CompuServe.COM (Alfredo E. Cotroneo)
Subject: 2nd Radio Montreux (June 9-11)
Date: 2 Jun 1994 09:51:15 -0500
Organization: UTexas Mail-to-News Gateway


 From Thursday June 9, 1994, till Saturday June 11 Montreux will host
the 2nd Radio Montreux, with an interesting Symposium and Technical
Exibition for those who are interested in Radio Broadcasting,
especially in Europe. Montreux is one hour drive/train from Geneva, on
the Lake of Geneva (Switzerland).

There will be three parallel sessions during the three days, divided on
topics related to Radio Station Management, Programming, and Engineering.

Below I am transcribing the titles of the sessions, as they appear on the
official program:

* THURSDAY JUNE 9, 1994 *

10:30 Opening Ceremony
12:00 Highlight Session: The future of Radio, followed by Wine Reception

Management: THURSDAY JUNE 9, 1994
14:30-16:00 The Co-existence of Public and Private Radio -
  The rules of the Game (The Funding of Radio)
16:30-18:00 Open Discussion
18:00-19:00 Traffic and service information

Programming: THURSDAY JUNE 9, 1994
09:00-10:30 Continuity and Broadcast Operations
  (also Automation, and RDS in BBC Radio Networks)


* FRIDAY JUNE 10, 1994 *

Management: FRIDAY JUNE 10, 1994
08:00-09:00 Workshop: Methods of Audience Rating
09:00-10:30 Who will pay for new technologies?
11:00-12:30 What will DAB change in Broadacsting Life?
14:30-18:00 Maximising Advertising, Sponsorship and Sales Income

Programming: FRIDAY JUNE 10, 1994
08:00-09:00  Workshop: Human Resources, How to Save your Job?
09:00-10:30 Changes in Musical Formats
11:00-12:30 The Future of International Programme Exchange
14:30-16:00 Is the Format Model Still Valid in Europe?
16:30-18:00 Is Automation Killing the Spirit of Radio?

Engineering: FRIDAY JUNE 10, 1994
09:00-10:30 Training
11:00-12:30 Transmission and Reception (Excluding Digital Radio)
14:30-18:00 Digital Radio
18:00-19:30 Workshop- Additional Data Services for DAB: Dynamic Range
Control (DRC)

* SATURDAY JUNE 11,1994 *

Management: SATURDAY JUNE 11,1994
08:00-09:00 Workshop - The Future of International Radio Services
09:00-10:30 The Regulation of Radio in the Year 2000
11:00-12:30 Marketing and Promotion

Programming: SATURDAY JUNE 11,1994
08:00-09:00 Breakfast Session -
  New Tools and Applications for Integrated Research
09:00-10:30 Planning and Positioning the Station
11:00-12:30 Winning with Consultants

Engineering: SATURDAY JUNE 11,1994
09:00-12:30 Production Environment and Acoustic Developements

and, to end, on Saturday:

FAREWELL EVENING: Concert and Buffet reception at the Auditorium
Starvinski, Montreux.

The technical Exhibition is open daily between 10:00-18:00.

Any error or omission is mine, so check the source, and do not trust
me :)

FINAL NOTE, AND DISCLAIMER: Needless to say that I have no relation
with the organizers, and for any details you have better to check with
them: Phone: +41-21-963 3220 or fax: +41-21-963 88 51. They can take
care of Hotel reservation as they did for me, as well as for travel,
and Conference registration.

I will be there, so if you plan to be there as well you may leave me a 
message at the desk, if you want. Please contact the 2nd Radio Montreux 
organizers for more information, *NOT* ME, please.


Alfredo E. Cotroneo, NEXUS-Int'l Broadcasting Associaton
PO BOX 10980, I-20110 Milano, Italy
phone: +39-337-297788 / +39-2-266 6971 Fax: +39-2-706 38 151

------------------------------

Date: Thu, 02 Jun 1994 11:51:44 -0500
From: Jonathan_Welch <JHWELCH@ecs.umass.edu>
Subject: NYNEX Bill Insert - Rate Changes


April 1994 bill insert on rate changes:

         On April 14, 1994 new rates became effective for our customers
         in Massachusetts. The new rates are reflected in this bill.
         These rate changes are part of a series of changes designed to
         gradually move the prices of NYNEX services closer to the
         actual costs of providing the services.
         
         NYNEX receives no additional revenue as a result of the new
         rates. Increases in prices of some services have been offset by
         decreases in prices of other services.
         
         RATE CHANGES AT A GLANCE
         Residence Services
         New Service:
         A new calling service is introduced for residence service cus-
         tomers in the 413 area code. The new optional calling plan is
         called CallAround 413 Plus Service and it allows unlimited
         calling within the 413 area code for a single monthly rate of
         $29.80, including the dial tone line rate.
         
         Exchange Service:
         Residence unlimited basic exchange service is increased by an
         average of $1.96. The residence measured service dial tone line
         rate is increased by $2.49 to $9.91. Circle Calling, a Residence
         Premium exchange service, is increased by an average of $4.57.
         
         Until now, residence unlimited exchange service had five sep-
         arate rates and Circle Calling Service had three, depending
         upon the exchange in which the service was provided. Now,
         there is a single statewide rate for each of these services. The
         applicable charges are: Residence unlimited one-party service
         - $16.85; Circle Calling Service - $34.24.
         
         Service Rates:
         The residence Temporary Suspension of Service charge equals
         the residential dial tone line rate. It increases by $2.49 to $9.91.
         
         Business Services
         
         Until now, business unlimited exchange line service and
         Private Branch Exchange (PBX) trunk service had four sepa-
         rate rates depending upon the exchange in which those ser-
         vices were provided. Now, there is a single statewide rate of
         $38.42 for each business unlimited exchange line and $57.63
         for each unlimited PBX trunk.
         
         The 800 Service dial tone line monthly rate is reduced from
         $25.00 to $20.00.
         
         Operator-Handled Business, Residence and Coin Calls
         Operator-handled surcharges will continue to apply to opera-
         tor-assisted calls.
         
         Other Changes
         Rates for various analog private line services will be increased;
         the prices for some digital private line services will be
         decreased.
         
         Rates for Direct Inward Dialing Service for business Private
         Branch Exchange (PBX) trunks and stations are reduced.
         
         RESIDENCE SERVICE OPTIONS**
         
         Service        Description                            Rates
         
         Measured       Provides per-call charging on          $9.91
                        all local calls
         
         Unlimited      Provides unlimited calling within     $16.85
                        the local calling area

                        Two Party                             $11.75
         
         
         Circle Calling Provides unlimited local calling      $34.24
                        and toll-free calling within 20 miles

         CallAround 413 Provides unlimited calling within     $29.80
         Plus Service   the 413 area code.
                  
         **Not all services are available in all locations. Please consult
         the introductory pages of your NYNEX telephone directory for
         detailed information, or call your service representative at the
         telephone number on page 1 on the NYNEX Itemization of
         Account section of your bill.
         
         If you want or need to change your local service, there is no
         charge to change from Circle Calling to Basic Unlimited or
         Measured Service.

         HOW TO CONTACT US
         If you want more information or if vou have any questions
         about these changes, please call our Customer Response
         Center at 1 800 555-5000, weekdays between 7:30 am and
         8:00 pm and Saturday between 9:00 am and 5:00 pm. If you
         are calling from outside Maine, Massachusetts, New
         Hampshire, Rhode Island or Vermont, please call a NYNEX
         Service Representative at the telephone number on page 1 of
         the NYNEX Itemization of Account section of your bill.
         
         Customers with disabilities should contact us at our
         Customer Contact Center for Individuals with Disabilities by
         calling 1 800 974-6006 (V/TTY).

------------------------------

Date: Wed, 01 Jun 1994 20:51:44 GMT
From: Charbel_Tannous@engr.usask.ca (Charbel Tannous)
Subject: Spread Spectrum Video
Organization: University of Saskatchewan


            SPREAD SPECTRUM FOR INDOOR WIRELESS COMMUNICATION
                                     by
       Dr. Eric J. Salt, Dr. Surinder Kumar and Prof. David Dodds
                       250 page manual included $395.

A comprehensive 3 cassette program for engineers and researchers
wanting to achieve a thorough understanding of the principles of
Spread Spectrum.  [Six hours].

                            Description

Principles of Spread Spectrum in a single path setting: Spreading with
PN sequences. Effects of Broad-band Noise & Simultaneous users. Types
of PN sequences. Receiver performance in the presence of Co-users.

The In-Building channel: The effect of absorbers and scatterers. A ray
model of the Channel. Delay power spectrum. Doppler spreading.
Distance dependent loss. Statistical model of the Channel.

The principles of Spread Spectrum in a Multiple Path Setting: Performance of
a RAKE receiver. Effects of a Co-user on the decision variable. Performance
calculation.

Issues in Synchronization: Single user- Single path. Multiple Access- Single
path. Multiple Access- Multiple path. 
 
SAW and RAKE Receivers in an in-building CDMA system: Matched Filter concepts.
SAW devices for implementing Matched Filters. Receiver Structure using a SAW
matched filter. System performance with a RAKE receiver.

                            TABLE OF CONTENTS

 SECTION       PAGES


1.Principles of Spread Spectrum in a Single Path Setting (Eric Salt)

(a) Mechanisms for Spread and Despreading    1- 12
(b) Effects of a Co-User     13- 17
(c) Spreading Codes      18- 42
(d) Receiver Performance      46- 67
(e) System Performance Example     68- 72



2.The In-Building Channel (Eric Salt)     
 
(a) The Channel Viewed as a Collection of Scatters  73- 85
(b) Delay Spread & Coherence Bandwidth    86- 91
(c) Doppler Spread      92- 94
(d) Odds & Ends       95- 105


3.Principles of Spread Spectrum in a Multiple Path Setting (Eric Salt)

(a) Simple Receiver in a Two-Path Channel   106- 112
(b) Two-Tap RAKE Receiver     113- 134
(c) Increasing the Capacity with Forward  
    Error Correction & Sectorization                            135- 148
(d) Pedagogical Example      148- 164


4.Issues in Synchronization (David Dodds)

(a) Single User - Path      165- 169
(b) Multiple Access - Single Path    170- 174
(c) Search Strategies      175- 182
(d) Multiple Access - Multiple Path    183- 188


5.SAW and RAKE Receivers for In-Building CDMA Systems (Surinder Kumar)

(a) Matched Filter Concepts     189- 200
(b) SAW Devices for CDMA Systems    201- 208
(c) CDMA Receiver Using SAW Devices    209- 220
(d) RAKE Receiver      221- 222
(e) Computer Simulation Results     223- 244

                              ** ORDER FORM **

To order: telephone, FAX or mail to:
TRLabs, Suite 108- 15 Innovation Boulevard, Saskatoon, SK 
CANADA S7N 2X8
Tel: (306)-668-8200  FAX: (306) 668-1944

Please send me one (1) @ 395 Candian Funds          $ _______________
Please send me    additional sets @ $160.0 each     $ _______________
Please send me    additional manuals @ $180.0 each  $ _______________
Please send me    additional cassettes @ $80.0 each $ _______________

(Prices do not include shipping and handling)

TOTAL                                               $ _______________


Payment options:

My cheque is enclosed _____ Please bill me _____ Purchase order # ____

Please charge my credit card:

Visa _____ American Express _____ Card # _____________Exp. Date_______

Signature:________________________

PLEASE SHIP MY ORDER TO:

Name:__________________________________       Title:__________________

Company Name:__________________________       Street:_________________

City:__________________________________        Province/State:________

Postal code/ZIP:_____________ Telephone:(   )_______________
 
                              Fax:(   )______________

About TRLabs:

TRLabs is a non-profit joint Industry-University-Government
collaboration in applied telecommunications research with the aim of
contributing trained people and innovative technology to industry.

TRLabs Sponsors:
AGT Limited              Digital Equipment Corp.      QCC Communication Corp.
Alberta Government       Digital Systems Group Inc.   Saskatchewan Government
AT&T                     MTS                          Manitoba Government
Bell Northern Research   EDTel                        SaskTel
Communications Canada    LSI Logic Corp.              SED Systems Inc.
NovAtel Communications   University of Alberta        SMART Technologies

                         University of Calgary
                         University of Saskatchewan
                         University of Manitoba
                         WaveCom Electronics Inc.
                         Develcon Electronics Ltd.

------------------------------

Date: Thu, 02 Jun 94 12:06:27 EDT
From: Rick Watson <URRAW@UCCVM.NYU.EDU>
Subject: ATT/MCI Numbering War


> In an effort to snag more long distance telephone calls (charged to
> a credit card or a third number), AT&T reserved the toll-free number
> 1-800-OPERATOR.  Not to be outdone, and perhaps knowing the public
> better, MCI reserved the number 1-800-OPERATER and has been scooping
> up calls intended for its arch-rival.

Is this why AT&T is switching from 1-800-OPERATOR to 1-800-CALL-ATT?

> [TELECOM Digest Editor's Note: AT&T had the latter of the two numbers in
> service for quite awhile prior to starting 'OPERATOR'. I would not be
> surprised to hear there was a lot of confusion between OPERATOR and
> OPERATER however.   PAT]

You think thats where it ends? Try dialing 1-800-ATT-CALL. (You get MCI!)


Rick Watson     Telecomm Analyst/NYU Computer Center

------------------------------

End of TELECOM Digest V14 #267
******************************

