Browse Prior Art Database

Automatic Local Access Number Selection

IP.com Disclosure Number: IPCOM000116163D
Original Publication Date: 1995-Aug-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Bhuta, M: AUTHOR [+3]

Abstract

Disclosed is the use of an Automatic Number Identification (ANI) protocol, together with a call back protocol, to download a local access number to a computer which subsequently dials the local access number. This method facilitates the use of on-line network services by a the user of a mobile computer traveling among several cities, since the access number(s) for such services change from one location to another and from time to time.

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This is the abbreviated version, containing approximately 81% of the total text.

Automatic Local Access Number Selection

      Disclosed is the use of an Automatic Number Identification
(ANI) protocol, together with a call back protocol, to download a
local access number to a computer which subsequently dials the local
access number.  This method facilitates the use of on-line network
services by a the user of a mobile computer traveling among several
cities, since the access number(s) for such services change from one
location to another and from time to time.

      With this method, when a subscriber to a network service begins
a Logon sequence, the software on the subscriber unit, consisting of
a computer and a modem, automatically dials a special '800' number,
which rings in the Service Office of the network.  At the Service
Office, the originating phone number of an incoming call is
identified by the standard telephony ANI protocols.  With this
information, an application running in the Service Office performs a
table look up, selecting an available local access number for the
calling subscriber unit, to which this number is then sent.  If more
than one local number is available, the total list is sent.  After
the subscriber unit receives a local number in this way, it
disconnects from the Service Office and dials the local number.  If a
list of local numbers has been provided, and if the first number
fails, for example by being busy or by not answering, the next number
on the list is tried until either the list is exhausted or the
s...