GB2279209A - Amethod for locating a user of telephone subscriber equipment - Google Patents

Amethod for locating a user of telephone subscriber equipment Download PDF

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Publication number
GB2279209A
GB2279209A GB9410924A GB9410924A GB2279209A GB 2279209 A GB2279209 A GB 2279209A GB 9410924 A GB9410924 A GB 9410924A GB 9410924 A GB9410924 A GB 9410924A GB 2279209 A GB2279209 A GB 2279209A
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GB
United Kingdom
Prior art keywords
user
subscriber equipment
locating
telephone
directory numbers
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB9410924A
Other versions
GB9410924D0 (en
Inventor
Charles John Malek
James Frances Goedken
John M Gilbert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of GB9410924D0 publication Critical patent/GB9410924D0/en
Publication of GB2279209A publication Critical patent/GB2279209A/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/06—User notification, e.g. alerting and paging, for incoming communication, change of service or the like using multi-step notification by changing the notification area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
    • H04M1/2749—Automatic dialling or redialling systems, e.g. on off-hook or redial on busy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party
    • H04M1/658—Means for redirecting recorded messages to other extensions or equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/46—Arrangements for calling a number of substations in a predetermined sequence until an answer is obtained
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/54—Arrangements for diverting calls for one subscriber to another predetermined subscriber
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/64—Distributing or queueing
    • H04Q3/66—Traffic distributors
    • H04Q3/665—Circuit arrangements therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
    • H04M11/022—Paging systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42229—Personal communication services, i.e. services related to one subscriber independent of his terminal and/or location

Abstract

A method for locating a user of telephone subscriber equipment which receives telephone communication signals from a public system telephone network (12) sequentially calls directory numbers (112) in a list of directory numbers associated with remote devices (18, 20, 26). The step of sequentially calling continues until the message signals are received by a telephone subscriber (128) at one of the directory numbers in the list of directory numbers. The step of sequentially calling directory numbers provides an efficient and cost effective way of locating a user of telephone subscriber equipment. In particular, the method will locate a user who may not be at one particular forwarding directory number without unnecessary calls to other directory numbers after the user has been located. <IMAGE>

Description

A METHOD FOR LOCATING A USER OF TELEPHONE SUBSCRIBER EQUIPMENT Field of the Invention The present invention is generally related to telephone subscriber equipment coupled to the public system telephone network, and more particularly to transferring features for telephone subscriber equipment.
Background of the Invention Previously, a telephone subscriber device has diverted an incoming call to a predetermined directory number, a feature commonly referred to as "call forwarding". Typically, in the call forwarding mode, the device places the calling phone on hold while a message transmitting and storage device transmits dialing pulses to another phone. However, the device must be reprogrammed by the user if the call is to be transferred to a different destination. In particular, a new destination must be programmed by encoding signals provided by the pulses of the standard dual-tone multifrequency system phone. Similarly, a telephone subscriber device has recorded messages and later transmitted a signal indicating that a message has been received and recorded.Finally, a telephone subscriber device has incorporated an automatic dialing feature for transmitting a recorded message to a number of telephone subscribers on a designated list.
However, devices for transferring calls to a single location do not accommodate an individual who may not be at one particular directory number at any given time. Further, arbitrarily transferring messages to all the subscribers on a designated list could be prohibitively slow and extremely costly. Accordingly, there is a need to sequentially transfer a call to a list of directory numbers to efficiently locate the user and prevent the user from missing a call. This need to provide sequential transferring to a list of directory numbers is heightened by the more frequent use of cellular telephones and pagers.
Summary of the Invention The present invention encompasses a method for receiving telephone communication signals from a public system telephone network at a receiving device and sequentially calling directory numbers associated with remote devices to locate the user of the receiving device and transmit message signals. The sequential calling is continued until the message signals are received by the user at one of the directory numbers in a list of directory numbers. One embodiment includes a one-line cordless telephone incorporating a digital answering machine (DAM). The incoming message is recorded and then transferred to one of the directory numbers associated with the user.
For example, the receiving device may be the user's home telephone, and the directory numbers on the list may be associated with the user's office phone, cellular phone or pager.
When the receiving device is in the automatic message forwarding (AMF) mode, the recorded messages will automatically be transferred to the user's office phone, cellular phone or other communication device sequentially until the message is received by the user. A delay may be provided before transferring the message to the directory numbers to allow time for the user to return to the receiving device to receive his messages.
Another embodiment includes a two-line cordless telephone for transferring the incoming call in real time by locating the user and connecting the calling party to the user immediately. This embodiment can optionally include a digital answering machine to record the incoming message if the user is unable to located or does not acknowledge the incoming call.
Brief Description of the Drawings FIG. 1 is a perspective view of an exemplary telecommunication system for employing the method for locating a user of telephone subscriber equipment of the present invention.
FIG. 2 is a call flow diagram for transferring communication signals in a telecommunication system according to a first embodiment of the method for locating a user of telephone subscriber equipment.
FIG. 3 is a flow chart for the method for locating a user of telephone subscriber equipment according to the present invention.
FIG. 4 is a call flow diagram for transferring communication signals in a telecommunication system according to a second embodiment of the method for locating a user of telephone subscriber equipment.
Description of the Preferred Embodiment Referring to FIG. 1, a typical telecommunication system 10 for employing the method for locating a user of telephone subscriber equipment according to the present invention is shown. Generally, the-method is employed in conjunction with a public system telephone network (PSTN) 12, although the method could be employed in other communication networks. The telecommunication system includes a cordless telephone system comprising a base station 14 coupled to the PSTN and an associated cordless handset 16. One example of a cordless telephone which could employ the present method is disclosed in US Patent No. 5,140,635, assigned to Motorola, Inc., the entire patent of which is incorporated by reference. The telecommunication system may also include a conventional analog telephone 18 coupled to the PSTN.A second analog phone 19, which represents the calling device in the present method, is also shown. The telecommunication system may incorporate wireless networks such as cellular networks or paging networks. In particular, a cellular network can include a cellular site controller 20, a transmitting base 22 and a cellular phone 24.
Similarly, a paging network can include a paging control site 26, a paging base 28 and a pager 30. It will be understood that other communication networks accessible by the PSTN including other wireless networks can be incorporated in the telecommunication system.
Turning now to FIG. 2, a call flow diagram for a first embodiment of the method for locating a user of telephone subscriber equipment in a telecommunication system is shown.
The call flow diagram of FIG. 2 shows an example of the sequential transferring of communication signals from a receiving device to a variety of remote stations, such as a conventional telephone, a cellular phone or a pager. While the example of FIG.
2 shows three remote locations and specific subscriber equipment associated with the remote locations, any number of locations could be called by the receiving device and a variety of telephone subscriber equipment could be employed as remote devices.
Similarly, the device of the calling party could be any telephone subscriber equipment which is coupled to the PSTN.
When the calling party makes a call at time tl to the receiving device, which may be for example a residential cordless telephone, the receiving device returns at time t2 an announcement which indicates that the user is not available to answer the call and requests that a message be left. The method also allows for the transfer of command signals between the calling party and the receiving device to accommodate such features as voice mail. In particular, the message sent at time t2 could include a prompt for the caller to select a mode of operation, such as speaking with an operator or leaving a message. The caller could select the mode by sending a command code at time t3. The receiving device could also send any return command code at time t4 as required.
Preferably, the receiving device incorporates a digital answering machine including a digital signal processor to convert the analog voice signals from the public system telephone network to digital signals and memory capability to record any message left at time t5. In addition to voice data, the communication signals could be facsimile data or computer data which could also be recorded. After recording voice, facsimile or computer data, the calling party hangs up at time t6.
At time t7, if the receiving device is in a automatic message forwarding (AMF) mode, the receiving device will call a remote device such as an office phone to announce that recorded messages will be transferred. The call to a remote device is preferably initiated immediately, although a predetermined delay could be incorporated to allow the user to return to the receiving device to discover his messages. For example, if the user has not acknowledged his messages within a predetermined time period, such as an hour, the receiving device will begin the process of sequentially calling the listed directory numbers to locate the user at one of the remote devices.
In order to ensure that the recorded messages are not improperly transferred to someone other than the user, an access command code must be returned at time t8 before the recorded messages are transferred to the remote device. Such an access command code could be, for example, a four digit code which is transmitted by the dual-tone multifrequency signals of many telephones.
Assuming the line for the first remote device is busy, the call is not answered, or that the proper access command code was not provided by the user, the receiving device hangs up at time tg.
The receiving device then places a call at time t10 to the second designated directory number in the list of directory numbers. For example, the second directory number could be associated with the user's cellular phone. If the call is answered by the cellular phone and the correct access command code is provided as shown at time tl 1, the recorded message is transferred to the cellular phone at time t12.
In addition to transmitting access command codes, the telephone subscriber could also transmit other command codes which control both outgoing messages and incoming recorded messages of the receiving device. After the messages are automatically transferred to the second remote device (i.e. the cellular phone), command codes can be transferred at time t13 from the remote device to receiving device to control the receiving device. For example, the outgoing announcement of the receiving device could be changed or recorded messages could be deleted. The remote device may also return reply command codes at time t14. If all communication between the remote device and the receiving device is completed, the remote device will hang up at time t15.
If the receiving device had not made a connection to the second remote device, the method of the present invention could attempt to make a connection to any additional remote devices on the list in the same manner as described above. Preferably, the last remote device on the list is a pager. It will be noted that the method of the present invention can accommodate any type of paging system. In particular, when storing directory numbers, special functions can be stored in the memory location with the directory number of the pager to ensure proper automatic dialing when dialing the pager. For example, a character denoting "dial and then wait for far-end pickup" can be inserted after the stored directory number to provide for paging system access, PSTN access time, far end ringing, pickup, or any other anticipated delay.Software implementation, in the form of a "soft state machine" allows for exception handling for the various call progress signals, such as ring, busy, or pre-empt.
Further, a character denoting a programmable duration pause can be inserted at various points in the character sequence to allow for the various speech synthesis prompts typical in many RCC paging systems.
Linking to other repertory dial locations is supported by this method, in case the dialed number sequence exceeds the length of a single stored dial buffer.
Turning now to FIG. 3, a flow chart 100 for showing the transfer of communication signals between a receiving device and a plurality of remote devices after recording a message from the called party. At an initial step 102, the receiving device is on hook. The receiving device goes off hook at a step 104 and checks for the presence of a dial tone at a step 106. If no dial tone is detected, a time-out period at a step 108 is initiated as the receiving device remains off hook again at step 104. If the dialtone is not detected at step 106 during the time-out period established at step 108, the attempt to contact the remote device is terminated at a step 110.
l If a dial tone is detected at step 106, the next directory number on the list is dialed at a step 112. The receiving device then monitors the remote device for a ringing, busy or pre-empt signal at step 114. If the phone rings for a certain time-out period, the phone is busy, or an improper directory number is detected at a step 116, the phone goes on hook at step 118. If the last directory number on the list has been dialed at a step 120, the sequential dialing of the listed directory numbers is terminated at step 110. However, if there are additional directory numbers on the list, the receiving device will attempt to dial the additional directory numbers as shown in steps 104, 106, 112, 114 and 116.
It will be noted that during the sequential calling steps shown in Figure 3 a directory number that is busy can be placed on the bottom of the list so that it can be dialed again. Additionally, if no~ connection is made after all the numbers in the sequence are dialed1 the dialing sequence can be completed again after a certain time-out period.
When the user answers the call from the remote device and the receiving device receives a dual-tone multifrequency signal or silence at a step 122, the receiving device will play an announcement at a step 124 indicating that messages have been received. If the correct access code is provided at a step 126 indicating that the user has been reached, the receiving device will play the recorded messages at a step 128. Preferably, the user will have a predetermined amount of time or number of attempts to enter the correct access code at step 126. After receiving recorded messages, the remote device will go on hook at a step 130 and the sequential calling is then terminated at step 110.However, if the correct access code is not provided at step 126, the receiving device will go on hook at step 102 and then will go off hook at step 104 to continue the dialing sequence to make a connection to some other remote device.
Turning now to FIG. 4, a second embodiment of the method for locating ajtelephone subscriber employing a two-line receiving device is disclosed. The receiving device having two lines allows for real time transfer of a message from the calling party to the user at one of the remote devices. The features of the present invention for locating a user of telephone subscriber equipment described in reference to the first embodiment are also employed in the second embodiment. In particular, the receiving device also sequentially dials remote devices to locate the user as described above in reference to FIG. 3. Accordingly, only additional features unique to the two-line receiving device will be described in detail.
As shown in FIG. 4, when the calling party makes a call to a receiving device at time tl, the receiving device places the calling party on "hold" on a first line at time t2. At time t3, the receiving device places a call on the second line to a first directory number on the list. Because the receiving device is a two-line device, the caller can be transferred to the user at a remote device immediately without any need to record a message from the caller.
Assuming the first designated directory number is busy, the call is not answered, or the correct access code was not provided at time t4, the receiving device hangs up at time t5. The receiving device then places a call on the second line to the second designated directory number in the list of directory numbers at time t6. The second directory number could be, for example, the user's cellular phone. Assuming that the correct access code is provided at time t7, the receiving device will bridge lines 1 and 2 at time t8. Generally, the path for the transfer of messages between the cellular phone and the calling party are shown at times tg and t1 0. In particular, communication from the calling party to the cellular phone is accomplished through the receiving device as shown at time tg. Similarly, communication from the cellular phone to the calling party is accomplished through the receiving device as shown at a time t1 0. Because the receiving device acts as a bridge between the calling party and the cellular phone, the receiving device must disconnect both the calling party and the cellular phone as shown at times tll and t12, respectively.
It will be noted that the method also allows for the transfer of command signals between the calling party and the receiving device to accommodate such features as voice mail if the calling party does not make a connection with the user in the second embodiment. In particular, if the lines are not bridged at time tg, the message traffic at times tg and t10 would instead be command signals and/or messages between the calling party and the receiving device.
Finally, in a third embodiment, the two-line receiving device can incorporate a digital answering machine to allow for the recording a message from the calling party if user cannot be located or the final destination on the list of destinations is a pager not having voice capability.
In summary, the method of the present invention for locating a user of telephone subscriber equipment allows for the quick and efficient transferring of a call or message to a user who may not be at his principal telephone but would like to receive the message quickly. By sequentially dialing directory numbers from a predetermined list of directory numbers, the user will be reached quickly wherever he is located. Preferably, the list is arranged based upon the probability of the user being reached at a particular number. Further, the method is a cost effective way of locating the user. Rather than dialing all directory numbers on a list of directory numbers to arbitrarily transfer the message to all the remote devices, the method of the present invention reduces the number of calls by ending the sequential calling after the user has acknowledged the message.

Claims (10)

Claims
1. A method for locating a user of telephone subscriber equipment having a receiving device coupled to a public system telephone network comprising the steps of: receiving telephone communication signals from said public system telephone network at said receiving device; and sequentially calling directory numbers in a list of directory numbers stored in said receiving device to transmit message signals of said telephone communication signals, said sequential calling continuing until said user acknowledges a call at one of said directory numbers in said list of directory numbers.
2. The method for locating a user of telephone subscriber equipment of Claim 1 further including the step of transmitting said message signals to the user at one of said directory numbers.
3. The method for locating a user of telephone subscriber equipment of Claim 2 wherein said step of transmitting message signals is in real time.
4. The method for locating a user of telephone subscriber equipment of Claim 1 further including the step of recording message signals of said communication signals at said receiving device.
5. The method for locating a user of telephone subscriber equipment of Claim 4 further including the step of waiting a predetermined period of time before sequentially calling directory numbers.
6. The method for locating a user of telephone subscriber equipment ofdClaim 1 wherein said step of receiving said communication signals from said public system telephone network includes converting analog signals to digital signals.
7. The method for locating a user of telephone subscriber equipment of Claim 1 wherein a directory number in said list of directory numbers designates a remote device selected from the group consisting of: a telephone coupled to said public system telephone network; a cellular telephone; and a pager.
8. The method for locating a user of telephone subscriber equipment of Claim 1 wherein said message signals are signals selected from the group consisting of: (i) voice data; (ii) facsimile data; and (iii) computer data.
9. The method for locating a user of telephone subscriber equipment of Claim 1 further including the step of terminating the step of sequentially calling directory numbers after an access command code is received from said user of telephone subscriber equipment at one of said directory numbers.
10. The method for locating a user of telephone subscriber equipment of Claim 1 further including the step of exchanging command codes between said receiving device and a remote device at said directory numbers.
GB9410924A 1993-06-01 1994-06-01 Amethod for locating a user of telephone subscriber equipment Withdrawn GB2279209A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7060093A 1993-06-01 1993-06-01

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GB9410924D0 GB9410924D0 (en) 1994-07-20
GB2279209A true GB2279209A (en) 1994-12-21

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GB9410924A Withdrawn GB2279209A (en) 1993-06-01 1994-06-01 Amethod for locating a user of telephone subscriber equipment

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GB (1) GB2279209A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530931A (en) * 1994-10-20 1996-06-25 Telefonaktiebolaget L M Ericsson Method and apparatus for providing a look ahead feature for enhanced call forwarding in a telecommunications system
GB2301982A (en) * 1995-06-06 1996-12-18 Hashimoto Corp Portable telephone system with telephone answering device
GB2290003B (en) * 1994-05-26 1998-05-13 Best Direct Telephone system
NL1002188C2 (en) * 1995-01-26 1999-04-07 Nec Corp Apparatus and method for recording messages and acknowledging message reception to wireless station that functions as a cellular telephone.
GB2347590A (en) * 1998-12-29 2000-09-06 Samsung Electronics Co Ltd Mobile station providing sequential dialling using stored list
US6192231B1 (en) 1996-07-11 2001-02-20 British Telecommunications Public Limited Company Telephone apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196209A (en) * 1986-10-07 1988-04-20 Oransay Ltd Supervising alarm circuits at a PBX
GB2205215A (en) * 1987-04-14 1988-11-30 Hashimoto Corp Two-directional call forwarding device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196209A (en) * 1986-10-07 1988-04-20 Oransay Ltd Supervising alarm circuits at a PBX
GB2205215A (en) * 1987-04-14 1988-11-30 Hashimoto Corp Two-directional call forwarding device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290003B (en) * 1994-05-26 1998-05-13 Best Direct Telephone system
US5530931A (en) * 1994-10-20 1996-06-25 Telefonaktiebolaget L M Ericsson Method and apparatus for providing a look ahead feature for enhanced call forwarding in a telecommunications system
NL1002188C2 (en) * 1995-01-26 1999-04-07 Nec Corp Apparatus and method for recording messages and acknowledging message reception to wireless station that functions as a cellular telephone.
GB2301982A (en) * 1995-06-06 1996-12-18 Hashimoto Corp Portable telephone system with telephone answering device
US5909647A (en) * 1995-06-06 1999-06-01 Hashimoto Kazuo Portable telephone system with telephone answering device
US6192231B1 (en) 1996-07-11 2001-02-20 British Telecommunications Public Limited Company Telephone apparatus
GB2347590A (en) * 1998-12-29 2000-09-06 Samsung Electronics Co Ltd Mobile station providing sequential dialling using stored list
GB2347590B (en) * 1998-12-29 2001-03-28 Samsung Electronics Co Ltd Telecommunication device and method
AU741390B2 (en) * 1998-12-29 2001-11-29 Samsung Electronics Co., Ltd. Linked list calling feature within a telecommunications device

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CA2123041A1 (en) 1994-12-02
GB9410924D0 (en) 1994-07-20

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