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PCT 

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) 



(30) Priority Data: 

08/747.594 



(51) International Patent Classification 6 
H04Q 7/38, H04M 3/42 



(11) International Publication Number: WO 98/21911 

(43) International Publication Date: 22 May 1998 (22.05.98) 



(21) International Application Number: PCT/SE97/0 1 896 

(22) International Filing Date: 1 1 November 1 997 (11.11 .97) 



12 November 1996 (12.11.96) 



(71) Applicant: TELEFONAKTIEBOLAGET LM ERICSSON 

(publ) [SE/SE]; S-126 25 Stockholm (SE). 

(72) Inventor: TRANK, Jorgen; Hallonstigen 3, S-651 15 Kil (SE). 

(74) Agent: TELEFONAKTIEBOLAGET LM ERICSSON; Patent 
and Trademark Dept., S-126 25 Stockholm (SE). 



(81) Designated States: AL, AM, AT, AU, AZ, BA, BB. BG, BR, 
BY, CA, CH, CN, CU, CZ, DE, DK, EE. ES, FI, GB, GE, 
GH, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, 
LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, 
NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ. TM, 
TR, TT, UA, UG, UZ, VN, YU, ZW, ARIPO patent (GH, 
KE, LS, MW, SD, SZ, UG, ZW), Eurasian patent (AM, AZ, 
BY, KG, KZ, MD, RU, TJ, TM), European patent (AT, BE, 
CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, 
PT, SE), OAPI patent (BF, BJ, CF, CG, CI, CM, GA, GN, 
ML, MR, NE, SN, TD, TG). 



Published 

With international search report. 
Before the expiration of the time limit 
claims and to be republished in the event of the receipt of 
amendments. 



(54) Title: DEVICE FOR ROUTING INFORMATION UPDATES 




(57) Abstract 

A telecommunications network automatically registers and de-registers terminal equipment based on sensed user location. A Universal 
Personal Telecommunications (UPT) user does not need to remember or take the time to manually register upon arriving at a location or 
de-register before leaving a location. Instead, automatic sensing devices sense when the UPT user arrives and/or leaves a location. A 
device for routing information updates automatically generates and sends UPT registration and de-registration messages to an Intelligent 
Network node in response to sensed user location. The Intelligent Network node updates its routing tables in response to the messages, and 
automatically routes user calls to the appropriate terminal locations based on the routing tables. 











FOR THE PURPOSES OF INFORMATION ONLY 








Codes used 


o identify States pa 


tty to the PCT on the front 




of pamphlets publishing international applications under the PCT. 








ES 


Spain 


LS 




SI 










FI 


Finland 






SK 


Slovakia 


AT 






FR 




LU 


Luxembourg 


SN 




All 






GA 




LV 




sz 


Swaziland 




Azerbaijan 




GB 




MC 


Monaco 


TO 


Chad 


BA 






GE 


Georgia 


MD 


Republic of Moldova 




Togo 


BB 


Barbados 




GH 


Ghana 


MG 


Madagascar 


TJ 


Tajikistan 


BE 






GN 




MK 


The former Yugoslav 


TM 


Turkmenistan 


BF 


Burkina Faso 




GR 






Republic of Macedonia 


TR 




BG 






111) 


Hungary 


ML 


Mali 


TT 


Trinidad and Tobago 


BJ 


Benin 




IE 


Ireland 




Mongolia 


DA 




BR 






IL 


Israel 


MR 


Mauritania 


UG 


Uganda 


BV 






IS 


Iceland 


MW 


. Malawi 


US 


United States of America 


CA 






IT 


Italy 


MX 


Mexico 


uz 


Uzbekistan 


CF 


Central African 




JP 




NE 


Niger 


VN 


Viet Nam 


CG 


Congo 




KE 




NL 


Netherlands 


YU 


Yugoslavia 




Switzerland 




KG 


Kyrgyzstan 


NO 




ZW 




CI 








Democratic People's 


NZ 








CM 








Republic of Korea 


PL 


Poland 






CN 


China 




KR 


Republic of Korea 


PT 










Cuba 




KZ 




RO 








CZ 


Czech Republic 






Saint Lucia 


RU 


Russian Federation 






DE 


Germany 






Liechtenstein 


SD 


Sudan 






DK 


Denmark 




LK 


Sri Lanka 


SE 


Sweden 






EE 






LR 


Liberia 


SG 


Singapore 







BNSDOCID <WO 982191 1A1J_> 



WO 98/21911 PCT/SE97/01896 
1 

DEVICE FOR ROUTING INFORMATION UPDATES 

Field of the Invention 
This invention relates to telecommunications networks such as Intelligent 
Networks. Still more particularly, this invention relates to Universal Personal 
5 Telecommunications, and to systems and methods for automatically updating a 
telecommunications network concerning the location of a Universal Personal 
Telecommunications user. 

Background and Summary of the Invention 
People have more convenient access to telecommunications devices than ever 

1 0 before. Almost everyone has a telephone at home, and most of us also have a 

telephone at work. Some people also carry portable cellular telephones with them 
wherever they go. We can see people talking on digital pocket phones in the car, in 
restaurants, in shopping malls and at the beach. 

This multiplicity of communications devices theoretically allows a person to 

15 be contacted wherever he or she happens to be. However, the process of successfully 
reaching a particular person has become complicated. Nowadays, when you ask for 
someone's telephone number, it is common to get back a list of phone numbers: the 
work number, the home number, the cellular phone number, the work facsimile 
number, the home facsimile number, an electronic mail address, etc. All of these 

20 telephone numbers are difficult to remember. One must also guess which numbers to 
try first. It can take a long time to dial the numbers in the list until you finally try the 
right one. Failed attempts can be expensive if the caller is calling long distance and 
an answering machine, fax machine or voice mail answers the telephone in the 
person's absence. 

25 "Universal Personal Telecommunication" ("UPT") addresses this problem. 

The objective of personal telecommunications is to provide a means of 
communicating with anyone, anytime, anywhere — whether at work, at home or on 
the move. Under the UPT concept, the telecommunications network takes care of 
routing your call to the correct telephone or other terminal device. You request the 



WO 98/21911 PCT/SE97/01896 

2 

network to connect you to the person you want to reach - not to a place or a 
particular terminal. You need not know where this person is for the moment -- the 
network will find out. 

In UPT, the fixed association between terminal access and user identification 
5 is removed. The network treats identification of UPT users separately from the 
addressing of terminals and network access points. Any UPT user can make and 
receive calls on any terminal. The so-called "Intelligent Network" ("IN") architecture 
can be used to efficiently implement Universal Personal Telecommunications. See, 
for example, S derberg, L., "Evolving an Intelligent Architecture for Personal 

10 Telecommunication", 4 Ericsson Review 156-170 (1993); Sundborg, J., "Universal 
Personal Telecommunication (UPT) -- Concept and Standardisation", 4 Ericsson 
Review 140-155 (1993); and Wallinder, S., "Implementation of UPT-Universal 
Personal Telecommunications", 1 Ericsson Review H994). 

Because UPT user identification is independent of telephone or other terminal 

1 5 addressing, the telecommunications network must have some way of locating users so 
it can associate them with nearby telephones or other terminals. UPT requires the 
network to be constantly updated about UPT users' locations, to enable routing of 
phone calls and email/fax to the right network address (extension/location). This 
locating process is sometimes called personal mobility call registration. 

20 In the past, personal mobility registration has been carried out manually, i.e., 

the user of the service has to access the service from some kind of terminal and 
manually tell it to associate that (or a different) terminal with the user for the time at 
least. For example, the UPT user can register a terminal address for incoming calls - 
telling the network to route all incoming calls for that user to that terminal address. 

25 The UPT user can also register outgoing calls so all outgoing calls from a terminal 
will be charged to the user. The call registration is made as an update of the UPT 
user's current terminal address. Such updates are normally done by means of DTMF 
tone signaling from an ordinary telephone, or via computer terminals connected to the 
Intelligent Network service management system. 

30 For example, in the standard telephone example, when the UPT user arrives at 

a new location he can pick up a standard telephone set and dial the UPT service. The 
user may be required to input his personal universal telephone number and an 



WO 98/21911 PCT/SE97/01896 

3 

associated personal identification number or other password to identify and 
authenticate himself to the UPT service. The UPT service may prompt the user with 
a voice menu. The user can make selections by depressing corresponding touch-tone 
buttons on the standard telephone set. One of the options may be "personal mobility." 
5 Upon selecting this option, the user may be prompted concerning what kind of 
registration he desires (e.g., register incoming calls, register outgoing calls, or 
registering all calls). Upon depressing an appropriate touch-tone button to select 
registration type, the service may prompt the user to enter the terminal address of the 
terminal device he is registering and the time when registration is to expire. 

10 In another prior registration example, the user may use a display device to 

access the UPT service. The display enables the UPT user to receive graphical 
information on the screen, and to respond by touching the screen, using a mouse or 
pressing buttons on a separate keyboard. See Sundborg (cited above), Figure 12. 

An appropriate node (or nodes) in the network updates its routing table upon 

1 5 receiving a call registration. From then until the registration is canceled or 
superseded, the network will route all incoming calls for that UPT user to the 
registered terminal address — and may also charge the user for all calls outgoing from 
that terminal address. The registration may have a certain valid time period 
associated with it. A new call registration from the same UPT user will cancel the 

20 one made previously. The UPT user can explicitly de-register - breaking the 
association between the user and a network address. 

A significant problem with prior personal mobility features described above is 
that the user has to remember (and take the time) to update the network routing table 
each time he or she changes location. If the user forgets or doesn't take the time to 

25 manually update the network, the network will be unable to direct messages to the 
right location and terminal. This can cause serious problems. For example, the 
network may erroneously direct an important personal call to the user's work phone 
after the user has gone home for the day. 

The prior art includes various techniques for locating subscribers and routing 

30 calls to subscriber locations. For example: 

U.S. Patent No. 5,506,887 teaches an Advanced Intelligent Network system 
providing a personal communication service to subscriber wireless handsets or other 



WO 98/21911 PCT/SE97/01896 

4 

portable devices (e.g., laptop computers). When a wireless unit comes within range 
of a mobile base station, the mobile base station automatically dials and informs the 
central network controller of the registration. 

WO 95/34985 (Alcatel) discloses a subscriber ID card that can be remotely 
5 interrogated. Each terminal device which recognizes, through remote interrogation, 
that the subscriber is nearby reports this fact to the service operator. Calls addressed 
to the subscriber are directed to the service operator and from there, to whatever 
terminal device reported last. 

WO 95 01070 (Ericsson) discloses sensing when a mobile phone has been 
1 0 placed into a battery charger; and sending a message from the battery charger to the 
telephone network. This message causes the network to route, to a fixed telephone at 
the same location, calls directed to the mobile phone. The battery charger similarly 
detects when the mobile phone has been removed from the charger, and sends a 
message to the network that causes the network to route, to the mobile phone, calls 
1 5 directed to the fixed telephone. 

EP 0520194 (Network Access) discloses a radio tracking system for tracking 
the location of a telephone user. The user carries a personal communicator that 
transmits radio signals to the tracking system. The tracking system tracks the user's 
location, and sends information to the telephone system service node. The service 
20 node stores this information in a look-up table along with the directory telephone 
number of the phone at the subscriber's current location. 

EP 0578374 (Northern Telecom) discloses a building access control system 
using badges. The system determines when subscribers leave and access a building - 
and in some cases, where the subscribers are within the building. A telephone switch 
25 uses this information to redirect calls to the phone nearest the subscriber. 

EP 0 433 465 (NTT) discloses a personal telephone number system. 
Registration is provided automatically when a portable telephone is connected by a 
cable to the system. See page 1 1, lines 11-15. 

However, further improvements are possible. For example, none of these 
3 0 references specifically mentions how automatic subscriber locator features including 
a means that can sense the location of a subscriber without requiring the subscriber to 



WO 98/21911 PCT/SE97/01896 

5 

carry portable telephone equipment, can be integrated with an intelligent network 
architecture. 

The present invention relieves the user of having to manually update the 
network or the UPT service with the user's location. The present invention solves the 
5 manual updating problem by providing methods and devices for automatically 

generating personal mobility location updates and providing them to the network. By 
means of a special device connected to either a telephone or to a personal 
computer/workstation, the telecom service is notified each time the service user is 
visiting the location where the device is located. The device is capable of detecting 

1 0 when the user is entering/leaving the location where the device is located. Because 
the UPT service is automatically informed of the user's location, the chance an 
incoming phone call, facsimile transmission and/or electronic mail message reaching 
the user is much higher. 

When the device detects that the service user is entering the premises, a 

1 5 "location update" is sent to the network node where the routing table is stored. The 
network node updates the routing table with the terminal address of the nearest 
terminal (e.g., the phone/fax number and/or email address of the terminal) — 
automatically registering the terminal for that user. When the device detects that the 
service user leaves the premises, it sends another "location update" to the network to 

20 de-register the user with respect to that terminal at that location. 

Detection of service user presence at a specific location can be accomplished 
in any of several ways. For example, the network can detect user presence by: 

• using information in electronic security locking systems (e.g., where the 
user must slip a card in a card reader to enter the building); 

25 • detecting "location updates" sent from a mobile phone; 

• detecting when a mobile phone is put into its battery charger; 

• executing a small application on a personal computer/workstation that lets 
the user indicate his presence by a single keystroke or mouse "click"; 

• depressing a special key on a telephone set; and/or 



WO 98/21911 PCT/SE97/01896 
6 

• using an anti-theft system to detect when the user enters/leaves his room 
or building. 

The detection device can be connected to the telecom service in any of several 
different ways depending upon access method, for example: 
5 • the device send routing updates by means of DTMF signaling (POTS) 

over a standard telephone link, user-to-user information (ISDN) over an 
ISDN link, or through use of USSD (GSM) signaling over a GSM link; or 

• the device can be connected to a personal computer/workstation, and can 
send routing updates by means of electronic mail messages over the 

1 0 Internet or other computer network. 



Brief Description of the Drawings 
These and other features and advantages provided by the invention will be 
better and more completely understood by referring to the following detailed 
description of presently preferred embodiments in conjunction with the drawings, of 
1 5 which: 

Figure 1 shows a telecommunications system including a device for routing 
information updates; 

Figure 2 is a flowchart of example steps performed by the device for routing 
information updates; and 
20 Figure 3 is a flowchart of example steps performed by an intelligent network 

node. 

Detailed Description of Presently Preferred Example Embodiments 
Figure 1 shows an example overall telecommunications system 50. System 50 
may include an Intelligent Network architecture having at least one Intelligent 
25 Network node 52. Node 52 may be part of a larger Intelligent Network architecture. 
Node 52 stores a routing table 54. Routing table 54 may be used as part of the 
Universal Personal Telephone (UPT) service to route incoming telephone calls, 
facsimile transmissions and/or electronic mail messages to particular terminals such 



WO 98/21911 PCT/SE97/01896 

7 

as stationary or mobile telephones, fax machines, computers or other terminal 
devices. 

System 50 also includes a device 60 for routing information updates to node 
52. In the preferred embodiment, device 60 routes location updates informing node 
5 52 of users' locations. For example, device 60 informs network node 52 when a 
particular user has arrived at a particular location, and when a particular user has 
departed from a particular location. Node 52 treats such location updates as UPT call 
registration or de-registration requests. More specifically, node 52 changes the 
information in routing table to reflect current user location as indicated by the 

1 0 location updates. 

Device 60 includes or is connected to a sensing means for sensing user 
location. The sensing means can comprise any number of different arrangements or a 
combination of different arrangements. 

In one example, the sensing means can comprise an electronic security locking 

1 5 system 62 or other electronic lock. In this example, the user must slip a card 64 into a 
card reader 66 to open a door 68 and enter or exit a room or building. When the user 
slips card 64 into the card reader 66 to enter, the security system 62 senses this and 
sends a message to the device 60 identifying the card holder. Device 60 sends a 
corresponding message to node 52 indicating that the identified user is on the 

20 premises and can receive telephone calls and other communications there. If the user 
needs to slip card 64 into the card reader 66 to exit, the security system 62 senses this 
and sends another message to device 60. Device 60 can send a corresponding 
message to node 52 indicating that the particular user is no longer on the premises and 
therefore cannot receive telephone calls or other communications there. 

25 In another example, device 60 can be connected to a conventional mobile 

telephone receiver 70 of the type that receives mobile telephone location update 
messages. Such messages are sent periodically by standard mobile telephones 72 
whenever they are turned on and operating, to allow cellular communications 
networks to keep track of which cell the mobile telephones are operating in. Device 

30 60 can respond to such location update messages by automatically generating and 

sending location update messages to node 52. Node 52 may use such location update 
messages to register the mobile telephone as the device to which incoming calls for 



WO 98/21911 PCT/SE97/01896 

8 

the phone's owner should be routed, and can route incoming calls to mobile phone 
72. 

In yet another example, device 60 can be connected to a mobile phone battery 
charger 76. Battery charging station 76 can alert device 60 whenever mobile phone 
5 72' is placed into the battery charging station. Device 60 can send a location 

update/registration message to node 52 that de-registers mobile phone 72' as being the 
user's terminal, and registering the stationary telephone at the charging station 76's 
location (e.g., the user's home). 

In still another example, device 60 can be connected to a conventional 

1 0 personal computer/workstation 80 that runs a small application allowing the user to 
indicate his presence very simply (e.g., by a single keystroke on keyboard 82 and/or 
by a "click" of mouse 84). Device 60 can, upon receiving a user presence indicating 
message from personal computer/workstation 80, send a location update message to 
node 52 effectively registering the personal computer/workstation (and/or telephones 

15 or other telecommunications equipment co-located with the personal 

computer/workstation) as being the user's destination network address. This 
registration can expire a certain amount of time after initial registration, or it can stay 
effective until the user registers from another location. 

In yet another example, device 60 can be connected to a conventional 

20 telephone set 90 having a special key 92. When the user depresses key 92, device 60 
can send a location update message to node 52 registering telephone set 90 as the 
user's incoming telephone call destination. When the user depresses key 92 again (or 
depresses a different, "de-registration" key), device 60 can send a further location 
update message that de-registers telephone set 90 for the user. 

25 In yet another example, device 60 can be connected to a security system 1 00 

of the type shops use to prevent theft. In this example, every user carries a badge, 
card or other object having a personalized transducer that electronically indicates user 
identity. Security system 100 detects when the user walks into the room or building, 
and also detects when the user walks out of the room or building. Security system 

30 100 sends responsive messages to device 60, which in turn sends location update 

information to node 52 for purposes of registering or deregistering particular terminal 



BNSDOCID: <WO 9821911A1J_> 



WO 98/21911 PCT/SE97/01896 
9 

devices at the location with respect to particular users who have walked through the 
security system 100. 

The location update information generated by device 60 may include the 
following information for example: 
5 user identity information (e.g., user's UPT number or another identification 

from which the network node 52 can derive the user's UPT number); 

registration/deregistration indicator (i.e., whether the user is arriving or 
leaving the location); and 

an optional registration time duration (e.g., in the case of sensing devices that 

1 0 sense only arrival and not departure, the registration can be set for a certain number of 
hours such as the length of a work day for registering a place of work). 

Device 60 can be connected to node 52 through any number of different 
communications paths. In one example, device 60 is connected through a standard 
telecommunications link such as DTMF (POTS) signaling, user-to-user information 

1 5 (ISDN) signaling, or USSD (GSM) signaling. In another example, device 60 can be 
connected to node 52 through a computer 102. Computer 102 can route messages 
from device 60 to node 52 through electronic mail or other messages over a computer 
network such as the Internet 104. 

Figure 2 shows example steps performed by device 60. In this example, 

20 device 60 senses the user's arrival at a certain location (Figure 2, decision block 150). 
If the user has not yet arrived, device 60 keeps on checking periodically. Device 60 
senses when the user arrives and is on site ("yes" exit to decision block 1 50), and 
sends a location update message to node 52 that registers the telecommunications 
devices at the location (Figure 2, block 1 52). Device 60 may then, if desired, sense 

25 user departure from the location (Figure 2, decision block 154). If the user has not yet 
departed, device 60 waits and keeps on checking. Device 60 senses when the user 
departs from the location (Figure 2, "yes" exit to decision block 1 54), and sends a 
corresponding location update to node 52 that de-registers the telecommunications 
devices at the location. 

30 Figure 3 shows an example process performed by node 52. In this example, 

node 52 determines whether it has received a location update from device 60 (Figure 
3, decision block 200). If it has ("yes" exit to decision block 200), node 52 retrieves 



WO 98/21911 PCT/SE97/01896 
10 

the network addresses of the telecommunications devices of the corresponding 
location from a database (block 202), and writes those network addresses into routing 
table 54 (Figure 3, block 204). If node receives an incoming call for the user ("yes" 
exit to decision block 206), node 52 routes the call to the user location based on the 
5 routing information contained within routing table (Figure 3, block 208). 

The present invention thus allows a telecommunications network to 
automatically register and de-register terminal equipment based on sensed user 
location. The UPT user does not need to remember to manually register upon 
arriving at a location or de-register upon leaving a location. Instead, automatic 
1 0 sensing devices sense when the UPT user arrive and/or leave a location, and a device 
for routing information updates automatically generates and sends UPT registration 
and/or de-registration messages to an intelligent network node in response to sensed 
user location. 

While the invention has been described in connection with various preferred 
1 5 embodiments, the embodiments have been presented by way of example only, and not 
limitation. The breadth and scope of the present invention should not be limited by 
any of the described example embodiments, but to the contrary, should be defined 
only in accordance with the following claims and their equivalents. 



WO 98/21911 

What is claimed is: 



11 



PCT/SE97/01896 



1 . A telecommunications system having an intelligent network architecture, 
the system comprising: 

5 an intelligent network including at least one intelligent network node, the 

intelligent network node storing at least one intelligent network universal personal 
telephone service routing table and routing calls to users at least in part in response to 
the routing table contents; 

at least one means for sensing user location without requiring the user to carry 
1 0 portable telephone equipment; and 

a device for routing information updates coupled to the sensing means and to 
the intelligent network node, the device for routing information updates generating 
intelligent network universal personal telephone service location update messages in 
response to the sensing means and sending the intelligent network universal personal 
1 5 telephone service location update messages to the intelligent network node, the 

intelligent network node updating its intelligent network universal personal telephone 
service routing table at least in part in response to the location update messages. 

2. A telecommunications system as in claim 1 wherein the sensing means 
comprises a personal computer including a keyboard and a mouse, the personal 

20 computer running a small application that allows the user to indicate his presence by a 
single keystroke on the keyboard and/or clicking the mouse. 

3. A telecommunications system as in claim 1 wherein the location update 
message includes a user UPT number, a registration/deregistration indicator, and an 
optional registration time duration. 

25 4. A telecommunications system comprising: 

an intelligent network including at least one intelligent network node, the 
intelligent network node storing at least one routing table and routing calls to users at 
least in part in response to the routing table contents; 

at least one means for sensing user location; and 
30 a device for routing information updates coupled to the sensing means and to 

the intelligent network node, the device for routing information updates generating 
location update messages in response to the sensing means and sending the location 



WO 98/21911 PCT/SE97/01896 

12 

update messages to the intelligent network node, the intelligent network node 
updating its routing table at least in part in response to the location update messages. 

5. A telecommunications system as in claim 4 wherein the sensing means 
5 comprises an electronic lock. 



6. A telecommunications system as in claim 4 wherein the sensing means 
comprises a mobile phone receiver responsive to location updates generated by a 
mobile phone. 

7. A telecommunications system as in claim 4 wherein the sensing means 
comprises a mobile phone battery charging station that senses when a mobile phone is 
coupled thereto. 



15 8. A telecommunications system as in claim 4 wherein the sensing means 

comprises a computer that senses user manipulation thereof. 

9. A telecommunications system as in claim 4 wherein the sensing means 
comprises a telephone set including a special key, the special key, in use, being 
20 depressed by the user to indicate user presence at the location of the telephone set. 



10. A telecommunications system as in claim 4 wherein the sensing means 
comprises a security system that automatically senses user passage through a security 
zone. 

25 

1 1 . A telecommunications system as in claim 4 further including means for 
coupling the routing device to the intelligent network node. 



12. A telecommunications system as in claim 1 1 wherein the coupling means 
30 comprises a standard DTMF telephone signaling line. 



WO 98/21911 PCT/SE97/01896 

13 

13. A telecommunications system as in claim 1 1 wherein the coupling means 
comprises an ISDN signaling link. 

14. A telecommunications system as in claim 1 1 wherein the coupling means 
5 comprises a GSM signaling link. 

15. A telecommunications system as in claim 1 1 wherein the coupling means 
comprises means for sending a message over the Internet. 

10 1 6. A method of registering a terminal to a user comprising: 

(a) automatically sensing user presence at a location having at least one 
terminal; 

(b) generating a location update message in response to step (a); and 

(c) in response to the location update message generated by step (b), 
1 5 registering the terminal to the user sensed by step (a). 

17. A method as in claim 16 wherein sensing step (a) comprises sensing user 
operation of an electronic lock. 

20 1 8. A method as in claim 1 6 wherein sensing step (a) comprises sensing 

receipt of at least one mobile phone location update message. 

19. A method as in claim 1 6 wherein sensing step (a) comprises sensing 
coupling of a mobile phone to a battery charger. 

25 

20. A method as in claim 16 wherein sensing step (a) comprises sensing user 
operation of a computer device. 



21 . A method as in claim 1 6 wherein sensing step (a) comprises sensing user 
30 depression of a special button mounted on a telephone set. 



WO 98/21911 PCT/SE97/01896 

14 

22. A method as in claim 16 wherein sensing step (a) comprises sensing user 
passage through a security system. 

23. A method as in claim 16 further including transmitting the location update 
5 message to an intelligent network node over the Internet. 

24. A method as in claim 16 further including transmitting the location update 
message to an intelligent network node over a conventional telecommunications link. 



10 25. In a telecommunications network of the type including a Universal 

Personal Telecommunications service that enables the network to route incoming 
communications directed to a particular user to any of a multiplicity of terminal 
devices, a method of automatically de-registering a terminal device comprising: 

(a) automatically sensing user departure from the terminal device location; 
1 5 (b) generating a location update message in response to step (a); and 

(c) in response to the location update message generated by step (b), 
deregistering the terminal with respect to the user sensed by step (a). 



20 



26. A method as in claim 25 wherein the sensing step senses the identity of 
the user, and the generating step generates a location update message that encodes 
sensed user identity. 



WO 98/21911 



PCT/SE97/01896 




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PCT/SE97/01896 



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B. FIELDS SEARCHED 



DE 44 20 462 A (SEL ALCATEL AG) 14 



EP 0 448 076 A ( FUJITSU LIMITED) 25 



sqq column 10, lin6 54 column 11. lin© 
39 

see column 6, line 23 - column 9, line 5 

EP 0 484 067 A (AMERICAN TELEPHONE & 
TELEGRAPH) 6 May 1992 



see the whole document 



1-6, 
8-18, 



8-13.16, 

20-22, 

24,25 



I, 4,5,8, 

II, 16, 
17.20, 
25,26 



00 ' 



16 April 1998 ■ 



23/04/1998 



Janyszek, J-M 



page 1 of 2 



INTERNATIONAL SEARCH REPORT 



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C.(Continuation) DOCUMENTS CONSIDERED TO BE RELEVANT 



EP 0 433 465 A (NIPPON TELEGRAPH & 
TELEPHONE) 26 June 1991 

see page 9, line 11 - page 10, line 6 
see page 11, line 1 - line 28; claims 
1,6-11; figures 

US 5 506 887 A (EMERY MARK J ET AL) 9 
April 1996 



see column 7, line 61 - column 9, line 19 
see column 15, line 63 - column 16, line 



see column 16, line 49 - column 17, 
39; figures 



WO 95 01070 A (ERICSSON TELEF0N AB L M) 5 
January 1995 



see page 17, line 26 - page 19, line 33 

EP 0 520 194 A (NETWORK ACCESS CORP) 30 
December 1992 

see column 5, line 24 - column 12, line 28 
see column 13, line 26 - line 45 

EP 0 578 374 A (NORTHERN TELECOM LTD) 12 
January 1994 



see page 3, line 42 - line 55 

see page 4, line 18 - line 28 

see page 4, line 40 - line 58 

see page 5, line 39 - page 6, line 32 

see page 8, line 38 - page 9, line 24; 

figures 

US 5 592 533 A (FARRIS ROBERT D ET AL) 7 
January 1997 

see column 11, line 55 - column 12, line 

37 

see column 15, line 50 - column 19, line 
67 



1 



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