WO1998019445A1 - Device and method for communication between a data network and a telecommunications network - Google Patents

Device and method for communication between a data network and a telecommunications network Download PDF

Info

Publication number
WO1998019445A1
WO1998019445A1 PCT/SE1997/001719 SE9701719W WO9819445A1 WO 1998019445 A1 WO1998019445 A1 WO 1998019445A1 SE 9701719 W SE9701719 W SE 9701719W WO 9819445 A1 WO9819445 A1 WO 9819445A1
Authority
WO
WIPO (PCT)
Prior art keywords
subscriber
service node
computer
data
telecommunications
Prior art date
Application number
PCT/SE1997/001719
Other languages
French (fr)
Inventor
Anders Olof Danne
Per Bergqvist
Göran BÅGE
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Priority to EP97911538A priority Critical patent/EP0938802A1/en
Priority to CA002270046A priority patent/CA2270046C/en
Priority to AU48886/97A priority patent/AU728548C/en
Priority to JP10520350A priority patent/JP2001503224A/en
Priority claimed from US08/953,537 external-priority patent/US6226286B1/en
Publication of WO1998019445A1 publication Critical patent/WO1998019445A1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/64Hybrid switching systems
    • H04L12/6418Hybrid transport
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/4228Systems providing special services or facilities to subscribers in networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/0024Services and arrangements where telephone services are combined with data services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/64Hybrid switching systems
    • H04L12/6418Hybrid transport
    • H04L2012/6443Network Node Interface, e.g. Routing, Path finding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/64Hybrid switching systems
    • H04L12/6418Hybrid transport
    • H04L2012/6472Internet
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/64Hybrid switching systems
    • H04L12/6418Hybrid transport
    • H04L2012/6475N-ISDN, Public Switched Telephone Network [PSTN]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/64Hybrid switching systems
    • H04L12/6418Hybrid transport
    • H04L2012/6486Signalling Protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2207/00Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
    • H04M2207/18Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place wireless networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/42136Administration or customisation of services
    • H04M3/42153Administration or customisation of services by subscriber
    • H04M3/42161Administration or customisation of services by subscriber via computer interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/42229Personal communication services, i.e. services related to one subscriber independent of his terminal and/or location

Definitions

  • the present invention relates to a communication node between
  • the object of the node is to enable communication
  • the electronic letters may be
  • a user is
  • the node consists of a
  • the present invention attacks the problem of simplifying the
  • connection between an A subscriber and a B subscriber
  • the telephone also has very limited possibilities for
  • Another problem is avoiding having to equip the user's computer
  • a further problem is that the user should have access to
  • a purpose of the present invention is thus to enable a user to
  • the user moves geographically and to another telephone and/or
  • a service node constituting a link between the
  • node has an interface to a telephone exchange through which
  • the service node also has a WWW interface through which a
  • the computer is
  • the data is presented on a screen
  • a user requests a service
  • node receives the request for a telephony service
  • the service node is comprised of a web server, a personal
  • the personal assistant and a service node selector.
  • the personal assistant and a service node selector.
  • the personal assistant handles various subscriber services .
  • the personal assistant controls the service node selector
  • the personal assistant can, by means of the service node
  • the personal assistant stores information associated with a
  • the user can retrieve and store personal information by means of a computer telecommunications terminal of his/her
  • a user can log in to the service node from a computer with a
  • the web server handles the communication with the
  • HTML HyperText HTML, said pages being presented on the user's computer.
  • HTML page The commands are transmitted to the web server using
  • the personal assistant makes sure the command is executed.
  • the invention makes it possible to simplify the user control of
  • the invention may be utilized by several users as the protocol
  • the invention enables the storage of data associated with a
  • This data is accessible to the user and
  • the stored data may be used when
  • Fig. 1 shows a protocol stack known per se, used in the
  • Fig. 2 shows a schematic block diagram of units comprised in
  • FIGS 3, 4, 5 are sequence diagram of the signalling between
  • Figure 6 is a flow chart of the method for connection. DESCRIPTION OF THE ANNEX
  • the annex contains the complete syntax of the application
  • IP Internet Protocol
  • TCP Transmission Protocol
  • IP protocol may be used in different types of
  • FIG. 1 shows the HTTP protocol on top of the TCP
  • Hyper Text Meta Language HTML
  • WWW browser software for example Netscape Navigator or Mosaic
  • received data is presented according to
  • the active fields are
  • buttons made up of buttons, fields for entering text, and hypertext
  • the user may, for example using a mouse connected to the
  • buttons in the following be referred to as clicking a button or a hyper
  • a so called web server connected to the
  • the command may cause a new
  • HTML page to be transmitted to the user's computer PC where it
  • FIG. 2 is an overview of the communication system in which
  • the service node SN has a WWW interface for communication in
  • the service node SN has
  • PSTN Services Telephone Network
  • ISDN ISDN
  • private telecommunications networks To each of the
  • telecommunications networks a number of telephones, mobile
  • Figure 2 only shows one telephone AT
  • the A subscriber also has access to a computer PC.
  • the computer
  • PC may be a personal computer with units for user communication
  • a screen such as a screen, a mouse and a keyboard, or a mainframe
  • the computer having a user terminal.
  • the computer is provided with
  • TCP/IP and HTTP protocols are used, in a conventional way.
  • Figure 2 shows this data network as a cloud referenced as DN.
  • the service node SN is comprised of three parts: a web server
  • WS a personal assistant PA and a service node selector SNS .
  • the web server handles the communication with the computer PC
  • the computer through the data network DN.
  • the user requests a
  • the web server transfers the command on to the
  • the web server WS and the personal assistant PA The web server WS and the personal
  • the personal assistant PA both constituting parts of the personal assistant PA
  • present service node may be computers from different vendors.
  • the personal assistant PA is the control unit of the service
  • the personal assistant handles the command transmitted
  • personal assistant PA may also imply that the personal assistant PA is to provide or store information, for example
  • the service node selector SNS is able to set up connections to
  • the service node selector is also connected to the personal assistant PA.
  • the service node selector is also connected to the personal assistant PA.
  • Figures 3 , 4 and 5 are shown in Figures 3 , 4 and 5.
  • Figure 3 shows the login procedure to the service node SN.
  • This data is then transmitted to the web server WS
  • the request is approved after the web
  • index page a so called index page.
  • the A subscriber intends to use. If the A subscriber
  • This data can thus constitute a personal telephone directory for the A
  • hypertext links or active fields when presented to the user
  • FIG. 4 shows signal sequences in user programming when the A
  • the personal assistant in which the user data is stored,
  • the web server WS transmits a set of parameters to the web server WS .
  • the new telephone is already stored in the personal assistant
  • the web server transmits a new set of data to the web server.
  • the service node SN will connect the A subscriber's calls is
  • the A subscriber can retrieve the index page stored in the
  • telephone directory may either have come with the index page or
  • the web server WS which forwards the request to the personal
  • the personal assistant PA orders the service node selector SNS
  • selector calls the telephone AT through the exchange PBX and
  • the service node selector SNS sets up a
  • step 6 the personal assistant PA orders the
  • the method for connection set-up described above can also take
  • the A subscriber and the B subscriber, respectively, can take
  • the service node and a B subscriber may be established independently of whether or not the call made to the A
  • the method can also be modified to let the B subscriber be
  • the service node provides a spoken message
  • the service node SN also handles incoming connections to the A
  • the A subscriber can, in the desired order and after logging in
  • a telecommunications service such as call set-up.

Abstract

The present invention relates to a service node between Internet networks and a telecommunications network, said node being used to order telephony services by means of HTML pages from a computer having a WWW browser. The invention also relates to a method for calling a B subscriber, in which the call is ordered from the computer but the connection is set up between the telephones of the A and B subscribers' telephones. The service node communicates with computers connected to computer networks using the HTTP protocol. The node stores data related to a subscriber; said data can be used when the user requests a telephony service. The node is centrally located, which enables the use of its services even if the user moves to another location and terminal.

Description

DEVICE AND METHOD FOR COMMUNICATION BETWEEN A DATA NETWORK AND A TELECOMMUNICATIONS NETWORK
TECHNICAL FIELD
The present invention relates to a communication node between
data networks and public telecommunications networks.
STATE OF THE ART
Such a communication node between data and telecommunications
networks is disclosed in, for example, WO 94/24803. This
document describes such a node in a multimedia communication
system. The object of the node is to enable communication
between users using different types of terminals, such as
common telephones, personal computers and workstations.
The published international patent application WO 87/078001
describes a node constituting an electronic mailbox. The object
is for the mailbox to be able to receive and store electronic
mail sent from different types of sources, such as telephones,
computers and fax machines . Messages may have been translated
before they reach the mailbox. The electronic letters may
subsequently be retrieved from different types of terminals. Some different types of network architecture for establishing a
link between data networks and telecommunications networks are
described comprehensively in a report of a final thesis at
Lulea Institute of Technology: "Functional Distribution between
Co-operating Networks", Bodin and Andreasson. The report
briefly describes the design of a node between data networks
and telecommunications networks, used to demonstrate the
ordering of telephony services from a computer. A user is
enabled to order telephony services presented on the computer
screen via pages in HTML format. The node consists of a
computer with an off-the-shelf software platform.
SUMMARY OF THE INVENTION
The present invention attacks the problem of simplifying the
use of telecommunications services for a user by offering a
solution with which such telecommunications services in public
and private telecommunications networks may be made accessible
through a computer. In particular this applies to the ordering
from a computer of the set-up of a telecommunications
connection between an A subscriber and a B subscriber.
The telecommunications services of today are becoming more and
more advanced. The new services are perceived as difficult to use since conventional telephones are only provided with a
primitive keypad allowing the user to enter commands or provide
data. The telephone also has very limited possibilities for
providing visual information.
With the new services, the need also arises to be able to adapt
some of the services according to the user's desires. Thus the
need for several alternative solutions for exchanging
information with the user is further increased.
Another problem is avoiding having to equip the user's computer
with special software to enable the ordering of
telecommunications services from it. It should be sufficient
for the computer to be provided with prior art software for
communication, and said software should also be useful for
other purposes than for ordering telephony services.
A further problem is that the user should have access to
personal stored information concerning telecommunications
services even if he/she moves geographically and changes
computer and telephone equipment . A purpose of the present invention is thus to enable a user to
order telecommunications services, especially connection of
calls, by means of a computer, in a way that is simple for the
user and to provide subscriber related data that can be used
for this purpose, and to give access to these
telecommunications services and this user related data even if
the user moves geographically and to another telephone and/or
computer.
A service node is provided, constituting a link between the
data network and the telecommunications network. The service
node has an interface to a telephone exchange through which
public and private telecommunications networks can be accessed.
The service node also has a WWW interface through which a
communication connection to a computer can be established
through a data network using the HTTP protocol. The computer is
equipped with a WWW browser and receives data in HTML format
from the service node . The data is presented on a screen
connected to the computer, in the form of pages comprising,
among other things, active fields. A user requests a service
using said active fields by means of the computer. The service
node receives the request for a telephony service or
programming of subscriber related data from the computer in order for the data to be registered by the service node. The
service node performs the requested service and sends the
result to the computer in a new HTML page, which is presented
to the user on the screen.
The service node is comprised of a web server, a personal
assistant and a service node selector. The personal assistant
constitutes a control and supervision part of the service node
and communicates both with the service node selector and the
web server.
The personal assistant handles various subscriber services .
The personal assistant controls the service node selector,
which is connected to telecommunications and mobile
telecommunications networks.
The personal assistant can, by means of the service node
selector, make outgoing calls, receive calls and interconnect
incoming and outgoing calls.
The personal assistant stores information associated with a
user. The user can retrieve and store personal information by means of a computer telecommunications terminal of his/her
choice or.
A user can log in to the service node from a computer with a
WWW browser. The web server handles the communication with the
computer by transmitting WWW pages in the mark-up language
HTML, said pages being presented on the user's computer. The
user may enter commands using active fields in the presented
HTML page . The commands are transmitted to the web server using
the HTTP protocol. The commands are forwarded by the web server
to the personal assistant .
The personal assistant makes sure the command is executed. The
result is then transmitted to the web server, which generates a
new HTML page presenting the result of the command to the user.
The invention makes it possible to simplify the user control of
telephony services by means of a computer.
The invention may be utilized by several users as the protocol
used for communication with the service node is found in most
network connected computers . Programs such as WWW browsers are
widely deployed in network connected computers. The invention enables the storage of data associated with a
user in a central node. This data is accessible to the user and
may be changed even if the user moves to a different location
and uses different terminals. The stored data may be used when
a telephone connection with a B subscriber is being set up.
The invention will in the following be described in more detail
by way of preferred embodiments and with reference to the
enclosed drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 shows a protocol stack known per se, used in the
Internet
Fig. 2 shows a schematic block diagram of units comprised in
the communication system of which the invention is part.
Figures 3, 4, 5 are sequence diagram of the signalling between
the parts of the system.
Figure 6 is a flow chart of the method for connection. DESCRIPTION OF THE ANNEX
The annex contains the complete syntax of the application
protocol which constitutes part of the invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
The Internet is an important precondition for the applicability
of the present invention and will therefore be described
briefly here. The Internet in this context means any data
network using a protocol stack having an Internet Protocol (IP)
layer. Upon the IP another protocol, the Transmission Control
Protocol (TCP) is used. These two protocol layers are shown in
Figure 1. The IP protocol may be used in different types of
physical data networks, hence Figure 1 does not show the
protocols below the IP layer. Also, different protocols for
different types of applications may be added on top of the TCP
layer. Figure 1 shows the HTTP protocol on top of the TCP,
since this protocol is used in the application of the present
invention.
On the HTTP protocol data can be transferred in the mark-up
language Hyper Text Meta Language (HTML) . In a computer PC, for
example, a personal computer or a mainframe computer with user
terminals, with WWW browser software, for example Netscape Navigator or Mosaic, received data is presented according to
its HTML format on the screen in the form of pages comprising
pictures, graphics and text. The presented HTML pages also
comprise so called active fields by means of which the users
can request different types of services. The active fields are
made up of buttons, fields for entering text, and hypertext
links. The user may, for example using a mouse connected to the
computer, move a cursor over the page to place it on a button
or a hyper text link and then press a mouse button. This will
in the following be referred to as clicking a button or a hyper
text link, respectively. In this way a command is transferred
to another computer, a so called web server connected to the
data network, on the HTTP protocol. The command may cause a new
HTML page to be transmitted to the user's computer PC where it
is presented, or a search for information to be started in a
database. The result of said search will be presented to the
user on a new HTML page .
Figure 2 is an overview of the communication system in which
the method according to the invention is applied. The apparatus
according to the invention is comprised of a service node SN. The service node SN has a WWW interface for communication in
data networks using the HTTP protocol. The service node SN has
another interface towards a telephone exchange, which is shown
in Figure 2 as a private branch exchange PBX, but may also be
another type of exchange. Through the exchange PBX connections
may be established in public or private telecommunications
networks. It is also possible to connect the service node SN
directly to a telecommunications network without an exchange
therebetween. In the description below only the case in which
the communication with a telecommunications network is set up
through an exchange is shown. In Figure 2 two public
telecommunications networks are shown: a conventional Public
Services Telephone Network (PSTN) and a cellular mobile
telecommunications network PLMN. It is also possible to connect
to other types of telecommunications networks than the ones
shown in Figure 2, such as Integrated Services Digital Network
(ISDN) or private telecommunications networks. To each of the
telecommunications networks a number of telephones, mobile
telephones, telefaxes and other types of telecommunications
terminal are connected. Figure 2 only shows one telephone AT
and one mobile telephone MSA belonging to an A subscriber, and
a telephone BT and a mobile telephone MSB belonging to a B
subscriber . The A subscriber also has access to a computer PC. The computer
PC may be a personal computer with units for user communication
such as a screen, a mouse and a keyboard, or a mainframe
computer having a user terminal. The computer is provided with
a WWW browser and connected to a data network in which the
TCP/IP and HTTP protocols are used, in a conventional way.
Figure 2 shows this data network as a cloud referenced as DN.
The service node SN is comprised of three parts: a web server
WS, a personal assistant PA and a service node selector SNS .
The web server handles the communication with the computer PC
by generating HTML pages, which are then transferred to the
computer through the data network DN. The user requests a
service using the above described active fields in these pages.
When the A subscriber has entered text or clicked a button or a
hypertext link, a command specifying the requested service is
sent from the computer PC to the web server WS, using the HTTP
protocol. The web server transfers the command on to the
personal assistant PA. The web server WS and the personal
assistant communicate by means of an application protocol. The
application protocol uses TCP/IP for transport and thus constitutes a protocol layer on top of TCP/IP. The protocol
implies that commands and other information being exchanged
between different computers use an established syntax in order
to be interpreted in the same way in the different computers.
This means that computers having different operating systems
and software written in different programming languages, can
communicate with each other. In this way the web server WS and
the personal assistant PA, both constituting parts of the
present service node, may be computers from different vendors.
The complete syntax of the application protocol is described in
the annex .
The personal assistant PA is the control unit of the service
node. The personal assistant handles the command transmitted
from the computer PC and makes sure it is executed. If the
command from the computer PC, received by the personal
assistant PA implies that a service is to be performed in one
of the telecommunications networks PSTN, PLMN, the personal
assistant PA orders the service node selector SNS to set up a
connection with the appropriate network. The personal assistant
then performs the steps required to perform the requested
service. The command from the computer PC received by the
personal assistant PA may also imply that the personal assistant PA is to provide or store information, for example
programming of user data. When the personal assistant PA has
performed, or failed in performing, a requested service, the
personal assistant PA transmits the result to the web server,
which enters the result into an HTML page and forwards it to
the computer PC, which presents it to the A subscriber.
The service node selector SNS is able to set up connections to
the telecommunications networks PSTN, PLMN, upon orders from
the personal assistant PA. The service node selector is also
able to connect to existing connections, upon orders from the
personal assistant. As described below, this function will be
utilized in the present method.
The commands exchanged between the computer PC, the telephone
AT of the A subscriber, the web server WS of the service node,
the personal assistant PA of the service node, the service node
selector SNS of the service node, the private branch exchange
PBX, the public network PSTN and the telephone BT of the B
subscriber, when a service is requested by the A subscriber,
are shown in Figures 3 , 4 and 5. Figure 3 shows the login procedure to the service node SN. The
user has first retrieved a presentation page from the service
node SN, using his computer PC. In this page, the user enters
his identity and password in fields intended for this
information. This data is then transmitted to the web server WS
with a login request . The request is approved after the web
server has checked and verified the identity and password by a
query to the personal assistant PA. The web server WS then
transmits a new page to the computer PC comprising an index of
available services and data, a so called index page.
In the obtained index page, the user clicks on a hypertext link
to request user programming in the personal assistant PA.
Programming of user data involves the A subscriber changing or
adding information related to the user, which is stored in the
personal assistant PA. Programming of user data is necessary
for the personal assistant to know what telecommunications
terminal the A subscriber intends to use. If the A subscriber
wishes to change the telecommunications terminal, this is done
by reprogramming the user data in the personal assistant. The A
subscriber can also register the names and identities of other
telecommunications subscribers, with photos if desired, to
facilitate the ordering of telephone services. This data can thus constitute a personal telephone directory for the A
subscriber. It is also possible to register telecommunications
commands in the personal assistant to facilitate their use.
Names, identities and other information registered can be used
as hypertext links or active fields, when presented to the user
on an HTML page, to facilitate making calls or using the data
in another way.
Figure 4 shows signal sequences in user programming when the A
subscriber changes his own telephone AT. The request is
transferred through the data network DN to the web server WS
which in turns forwards the request to the personal assistant
PA. The personal assistant, in which the user data is stored,
transmits a set of parameters to the web server WS . The web
server enters the parameters into an HTML page and transmits
the page to the computer PC. In the present example the A
subscriber wishes to change his telephone. If the identity of
the new telephone is already stored in the personal assistant
PA and registered on the parameter page, the A subscriber can
enter a new telephone by, for example, clicking on the
hypertext link of the new telephone. If the telephone to which
the A subscriber wishes to change is not registered, the
identity of the new telephone, the A number, is entered in a field intended for this information on the parameter page. The
request for a new A number is received by the web server WS,
which forwards the request to the personal assistant PA. The
personal assistant registers the new A number and then
transmits a new set of data to the web server. The web server
WS enters this data in a new parameter page in HTML format
which is transmitted to the computer PC. The telephone to which
the service node SN will connect the A subscriber's calls is
then presented to the A subscriber on the screen of the
computer PC.
The A subscriber can retrieve the index page stored in the
computer PC after login. The user requests the set-up of a
telephone connection between his own telephone AT and a B
subscriber's telephone, for example by typing in the B number
in a field on the index page intended for this information. It
is, however, easier for the user if the B number is already
stored in the above described personal telephone directory. The
telephone directory may either have come with the index page or
be retrieved to the computer PC in HTML format from the
personal assistant PA through the web server WS in the same way
as the data page. From the telephone directory the A subscriber
requests a call by, for example, on his computer, clicking on a hypertext link with the B subscriber's name. Figure 6 shows the
procedure when a call is made. In the first block 1 the A
subscriber requests the B subscriber to be called, from his
computer PC, in any of the above described ways. Figure 5 shows
the signalling sequence when a call is made. The request to
call the B subscriber is transferred from the computer PC to
the web server WS, which forwards the request to the personal
assistant PA, which is also shown in step 2 in Figure 6.
The personal assistant PA orders the service node selector SNS
to call the A subscriber's telephone AT. The service node
selector calls the telephone AT through the exchange PBX and
the public network PSTN, corresponding to step 3 in Figure 6.
When the A subscriber has answered, by lifting the hook of the
telephone AT, step 4, the connection is set up between the
personal assistant and the A subscriber through the public
telecommunications network PSTN, the exchange PBX and the
service node selector SNS. The personal assistant PA then
orders the service node selector to call the B subscriber's
telephone BT . The service node selector SNS sets up a
connection to the B subscriber's telephone in the same way as
with AT, as represented by step 5. When the B subscriber has answered, in step 6, the personal assistant PA orders the
service node selector SNS to connect the two connections . In
this way a connection between the two telephones AT and BT is
established, see step 7 in Figure 6.
The procedure would have been interrupted after a certain
period of time if one of the parties had not answered, see
steps 4 and 6. The personal assistant PA transfers the result
of the set-up, or the failed set-up, to the web server WS,
which transfers it, in HTML format, to the computer PC, where
it is presented to the A subscriber. This is shown in the final
step 8 in Figure 6.
The method for connection set-up described above can also take
place in modified ways. The set-up of connections for calling
the A subscriber and the B subscriber, respectively, can take
place in a different order than the one described above, and
independently of whether or not the other party has answered
the call. Interconnection of the two connections can be made
even if one of the parties has not answered the call.
For example, in a modified embodiment, the connection between
the service node and a B subscriber may be established independently of whether or not the call made to the A
subscriber's telephone was answered.
The method can also be modified to let the B subscriber be
called before the A subscriber.
In another modified embodiment the connection to the A
subscriber and the connection on which the B subscriber's
telephone is being called, are interconnected.
A further modification, for the case when the B subscriber
answers the call first, consists of the service node
interconnecting the connection to the B subscriber and the
connection on which the A subscriber's telephone is being
called. For the cases when the B subscriber is the first to
answer the call, the service node provides a spoken message
that a call is being made from another subscriber.
The service node SN also handles incoming connections to the A
subscriber if call forwarding has been set up from the called
identity to the service node SN. The A subscriber can, in the desired order and after logging in
to the service node SN, reprogram user related data or request
a telecommunications service, such as call set-up. Other
telecommunications services handled by the service node SN are,
for example, electronic mail, transmission or reception of
telefax, whereby the service node functions as a mailbox for e-
mail, fax and voice messages.

Claims

1. A method for setting up a telecommunications connection
between a calling A subscriber and a B subscriber through a
telecommunications network (PSTN, PLMN) by means of a computer
(PC) available to the A subscriber and provided with a WWW
browser, said computer having access to a service node (SN)
through a network in which the HTTP protocol is used, said
service node receiving and processing orders for telephony
services and for the registration of subscriber data and said A
subscriber having access to at least one telecommunications
terminal connected to the telecommunications network (PSTN,
PLMN) ,
characterized by the steps of
a) transmitting, on request, a set of data in the HTML format
from said service node (SN) to the A subscriber' s computer
(PC) , said data comprising an offer to call the B subscriber by
means of the B subscriber's identity;
b) presenting the set of data as an HTML page; c) requesting a call to said B subscriber by seeking access to
said identity;
d) transmitting said call request by means of the A
subscriber's computer to said service node and by means of said
HTTP protocol, said service node receiving said call request
and forwarding it within the node by means of an application
protocol (AP) ;
e) setting up a first connection, in reply to said call
request, between the service node (SN) and the
telecommunications network (PSTN, PLMN) , said service node
requesting a call to said telecommunications terminal (AT) used
by the calling A subscriber;
f) setting up a second connection between said service node
(SN) and the telecommunications network (PSTN, PLMN) , said
service node requesting a call to the B subscriber's
telecommunications terminal;
g) interconnecting the connections established according to e)
and f) when at least one of the called A and B subscribers has answered the call, for connection between said A and B
subscribers .
2. A method according to claim 1, characterized in that a
second connection according to f) is not set up until the A
subscriber has answered said call.
3. A method according to claim 2, characterized by setting up
both connections only after the B subscriber has answered the
call.
4. A modified method according to claim 1, characterized in
that the setting up of said first connection takes place
according to e) but that the call is requested to the B
subscriber's terminal and that the setting up of said second
connection takes place according to f) but that the call is
requested to the A subscriber's terminal.
5. A method according to claim 1 or 4 , characterized by
interconnecting the two connections only after the A subscriber
has answered the call.
6. A method according to claim 1 or , characterized in that
before the call is requested by the A subscriber according to
step c) , the A subscriber has registered data in the service
node, by performing the following steps:
a) transmitting a request for the programming of user data by
means of the A subscriber's computer (PC) to the service node
(SN) through the HTTP protocol;
b) forwarding said request for programming within the service
node (SN) through the application protocol, and subsequently
processing said request;
c) transmitting a set of user related data within the service
node (SN) through the application protocol, and subsequently
forwarding said set of data according to the HTTP protocol
through a data network (DN) to the A subscriber's computer
(PC) ;
d) presenting the set of user related data in the form of an
HTML page on a screen connected to said computer (PC) , said A
subscriber entering the command using active fields in the HTML page presented on screen, to add the new data entered by the A
subscriber to the previously stored user data;
e) transmitting the command described in d) , and transmitting
the data listed in d) , to the service node, by means of the
computer (PC) and by means of the HTTP protocol, forwarding
said command and said data within the service node through the
application protocol (AP) and subsequently registering said
data.
7. A method according to claim 6, characterized in that the
command entered by the A subscriber under d) provides an
instruction as to what telecommunications terminal the A
subscriber intends to use.
8. A method according to claim 7, characterized in that the
identity of said telecommunications terminal has been
previously registered in the service node (SN) upon a command
from the A subscriber.
9. A method according to claim 6, characterized by transmitting
the identity of said terminal with said command for
registration in the service node (SN) .
10. A method according to claim 6, characterized in that the
command entered by the A subscriber under d) comprises data
about the identity of the B subscriber.
11. A method according to claim 1, 4 or 6 , characterized in
that the A subscriber logs in to the service network SN using a
password (by typing it in a field intended for this information
on an HTML page) before the request to call the B subscriber,
or the user programming, can be processed.
12. A method according to claim 1 or 4 , characterized in that
the service node (SN) , after receiving and processing a request
for connection, transfers the result of the set-up procedure to
the computer (PC) in an HTML format.
13. A service node (SN) constituting a link between a computer
network, in which the HTTP protocol is used, and at least one
telecommunications network, said service node being used to
request a telecommunications service from an A subscriber's
computer (PC) through the data network,
characterized in that the service node (SN) comprises: a) a web server (WS) for the communication with said computer
through the computer network using the HTTP protocol;
b) a service node selector (SNS) connected to at least one
telecommunications network (PSTN, PLMN) to set up two separate
connections in the telecommunications network, one of which
connects a telecommunications terminal belonging to the A
subscriber and the other connecting a telecommunications
terminal belonging to a B subscriber, in order to subsequently
interconnect the two connections;
c) a personal assistant (PA) having a communication connection
to the web server (WS) and a communication connection to the
service node selector (SNS) , said personal assistant
constituting the unit handling the request for a communication
service and ensuring it is performed by controlling the service
node selector (SNS) .
14. A service node according to claim 13, characterized in that
the personal assistant comprises a memory space for storing
user related data.
15. A service node according to claim 14, characterized in that
memory space of the personal assistant is used for storing the
identity of the A subscriber's terminal, to enable the
establishment of a telecommunications connection with the A
subscriber's terminal.
16. A service node according to claim 13, characterized in that
the memory space of the personal assistant is used for storing
the identity of the B subscriber's terminal, to enable the
establishment of a telecommunications connection with the B
subscriber's terminal.
PCT/SE1997/001719 1996-10-28 1997-10-14 Device and method for communication between a data network and a telecommunications network WO1998019445A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP97911538A EP0938802A1 (en) 1996-10-28 1997-10-14 Device and method for communication between a data network and a telecommunications network
CA002270046A CA2270046C (en) 1996-10-28 1997-10-14 Device and method for communication between a data network and a telecommunications network
AU48886/97A AU728548C (en) 1996-10-28 1997-10-14 Device and method for communication between a data network and a telecommunications network
JP10520350A JP2001503224A (en) 1996-10-28 1997-10-14 Communication method and apparatus between data network and communication network

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9603930A SE510663C2 (en) 1996-10-28 1996-10-28 Device and method of communication between computer networks and telecommunications networks
SE9603930-0 1996-10-28
US08/953,537 US6226286B1 (en) 1996-10-28 1997-10-20 Apparatus and method for communication between data network and telecommunication network

Publications (1)

Publication Number Publication Date
WO1998019445A1 true WO1998019445A1 (en) 1998-05-07

Family

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Country Link
EP (1) EP0938802A1 (en)
JP (1) JP2001503224A (en)
CN (1) CN1143513C (en)
AU (1) AU728548C (en)
SE (1) SE510663C2 (en)
TW (1) TW388014B (en)
WO (1) WO1998019445A1 (en)

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Also Published As

Publication number Publication date
AU728548B2 (en) 2001-01-11
AU728548C (en) 2004-07-15
JP2001503224A (en) 2001-03-06
EP0938802A1 (en) 1999-09-01
TW388014B (en) 2000-04-21
AU4888697A (en) 1998-05-22
CN1242124A (en) 2000-01-19
SE510663C2 (en) 1999-06-14
CN1143513C (en) 2004-03-24
SE9603930L (en) 1998-04-29
SE9603930D0 (en) 1996-10-28

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