CN1295751A - Multi-line telephone system for handling incoming caller ID messages - Google Patents

Multi-line telephone system for handling incoming caller ID messages Download PDF

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Publication number
CN1295751A
CN1295751A CN98813595A CN98813595A CN1295751A CN 1295751 A CN1295751 A CN 1295751A CN 98813595 A CN98813595 A CN 98813595A CN 98813595 A CN98813595 A CN 98813595A CN 1295751 A CN1295751 A CN 1295751A
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CN
China
Prior art keywords
message
caller
mobile phone
elementary cell
mobile
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Granted
Application number
CN98813595A
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Chinese (zh)
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CN1126394C (en
Inventor
K·拉马斯瓦米
P·G·克努特森
M·B·卡帕迪尔
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RCA Licensing Corp
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Thomson Consumer Electronics Inc
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Publication of CN1295751A publication Critical patent/CN1295751A/en
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Publication of CN1126394C publication Critical patent/CN1126394C/en
Anticipated expiration legal-status Critical
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725Cordless telephones
    • H04M1/72502Cordless telephones with one base station connected to a single line
    • H04M1/72505Radio link set-up procedures
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/57Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A telephone system comprises a plurality of handsets and a base unit coupleable to a local office via one or more external telephone lines and for communicating with each of the plurality of handsets. The base unit detects, acknowledges, and receives a caller ID message incoming from the local office, without interrupting communications of the plurality of handsets. The base unit notifies the plurality of handsets of the caller ID message, and transmits, to selected handsets, the caller ID message.

Description

Be used to handle the multi-line telephone system of the caller ID messages of incoming call
Background of invention
Invention field
The present invention relates to multi-line telephone system, relate to specifically from the multi-line wireless digital telephone system of outside central office type of receipt I or II caller ID messages.
Description of Related Art
Traditional telephone system often uses various forms of what is called " caller ID " (identification of ID representative here).This allows given telephone subscriber to receive calling information such as this telephone number, city and caller ID.Type I caller ID message provides the ID message of the phone of suitably setting to the warp of on-hook.For example, if the phone ringing of on-hook, at this moment calling subscriber's id information that is sent by distal center office or local office or message just may be displayed on and are connected with this phone or are installed on the equipment or display in the phone.
Type II caller ID message provides the ID message of the phone of suitably setting to the warp of off-hook or activation (promptly participating in telephone conversation).For example using phone as the user, caller ID message may be displayed on the display of phone unit to show the caller ID of second calling.At this moment the user can determine whether accept second calling by call waiting.
It is very difficult or complicated that the caller ID business realizes in wired and wireless multi-line telephone system.It is more and more general that this type systematic is just becoming.In multi-line wireless phone system such as digital 900MHz system, communicate by letter with elementary cell through the analog or digital wireless signal in the radio mobile telephone set unit, elementary cell links to each other with the external electric phone network by one or more standard phone lines (Plain Old Telephone Service, or POTS) usually.Adopt this mode, the user can use wireless phone and another user to carry out telephone relation by elementary cell and telephone network.
Multi-line wireless phone system also uses in all cases, and a plurality of telephone subscribers' commercial undertaking is for example arranged.This type systematic uses a mobile phone to communicate with maximum N mobile phone simultaneously, adopts digital communication scheme such as time division multiple access to insert (TDMA) usually.In tdma system, use a RF channel, transmit and receive data during the special-purpose timeslice of each mobile phone in total cycle or cycle (epoch).Also wish in multi-line wireless phone system, to realize the characteristic of general private branch exchange (PBX).
Brief summary of the invention
A kind of telephone system comprises a plurality of mobile phones and an elementary cell, and this unit can be connected to local office and is used for communicating with each of a plurality of mobile phones through one or more external call circuits.The caller ID message that this elementary cell detects, confirms and reception comes from local office, and do not interrupt the communication of a plurality of mobile phones.Elementary cell is to a plurality of mobile phone subscriber call ID message, and sends caller ID message to selected mobile phone.
The accompanying drawing summary
Fig. 1 is the block diagram of TDMA multi-line wireless phone system according to embodiments of the present invention;
Fig. 2 illustrates the data format of type I caller ID message;
Fig. 3 illustrates the data format of type II caller ID message;
Fig. 4 explanation is the signaling protocol of exchange caller ID message between the elementary cell of Fig. 1 system and local office according to embodiments of the present invention; With
Fig. 5 illustrates the method for operation of the caller ID message of the elementary cell processing input of Fig. 1 system according to embodiments of the present invention.
Preferred embodiment is described
The invention provides in the elementary cell of many mobile portable phones of multi-line system and detect and the mechanism of the control type II caller ID message that (CO) or stored program control switching system (SPCS) come from the central office.As long as only there is a phone to be connected with each incoming line that comes from CO, this mechanism both can be used for wired radio telephone system that also can be used for.Type I caller ID also can be supported automatically.
See Fig. 1 now, this is one the block diagram of spread spectrum TDMA multi-line wireless digital telephone system 100 according to embodiments of the present invention is described.Tdma system 100 comprises elementary cell 110, and the latter has receiver unit and data transmitter unit 112 and 111, and is connected to external electric phone network 116 through telephone wire 115.Elementary cell 110 can realize the present invention, below will be described in detail.System 100 also comprises N wireless phone 1201,1202...120N.Each mobile phone has a transmitter and receiver unit (transceiver), as the transmitter 121 and the receiver 122 of mobile phone 1201.In one embodiment, receiver unit 112 comprises N logic receiver, reaches transmitter 111 and comprises N logic transmitter, like this, receiver and data transmitter unit 112 and 111 provide N logic Transmit-Receive Unit, and each of N wireless phone all is being equipped with one.At any given time, M mobile phone (0≤M≤N) move or activate (promptly in the process of carrying out telephone relation).
In one embodiment, system 100 comprises 4 mobile phones, and is connected to central office or local office by four POTS (plain-old telephone system) circuit (for example through external network 116), produces incoming call and related caller ID message from this innings.The telephone system that is provided by system 100 preferably provides the characteristic of similar little PBX and preferably is operated on the not controlled frequency band of 900MHz.
In one embodiment, system 100 Time Division Multiplexing (for example TDMA) and frequency band select to combine overcome interference source and keep the base station and mobile phone between reliable link.In the digital TDMA scheme, each mobile phone only it " timeslice " or time slot during send or receive data.Like this, system 100 (provides wireless network between 1≤i≤N) at base station 110 and each mobile phone 120i.
As above explain, " caller ID " allow to connect with telephone unit or related so-called CPE (CPE) detection and demonstration about the information of calling.Various standards allow this category information of exchange between the CPE of CO or SPCS and phone.These two standardized general types comprise type I and type II.
See Fig. 2 now, the data format 200 of its expression type I caller ID message.In this working method, be on-hook at the phone of CPE.When the applied power source ring, SPCS sends calling subscriber's id information with frequency shift keying (FSK) information mode.The form and the sequential of this type I calling subscriber id information are shown in Fig. 2, and it is based on TIA (telecommunications industry association, http://www.tiaonline.org/) standard (Bellcore file SR-TSV-002476,1997,1 phase of December).First ringing voltage 201 produces and about 2 seconds of duration, is second ringing voltage 203 after about 4 seconds, sends fsk signal 202 in 4 seconds between ringing voltage 202,203.This mode is not directly supported the notion of off-hook signaling protocol.
See Fig. 3 now, the data format 300 of expression type II caller ID message.This mode is the superset of type I working method.Therefore, except supporting the Class1 signaling, type II working method is also supported off-hook caller ID characteristic and Call Waiting characteristic.The form and the sequential of this type I ID calling subscriber message are shown in Fig. 3.At first CO sends CPE alarm signal (CAS) 301, and this signal must be confirmed through CPE.Because it is underway calling out, and must temporarily weaken voice signal to send it back confirmation signal to CO, also sends it back caller ID message to CPE simultaneously.Like this, during voice weakened, after CPE confirmed CAS 301 with acknowledge message 302, the fsk data burst 303 of inserting a message or a plurality of message according to certain specified format just was sent out away.Voice strengthen and can recover dialogue subsequently.At this moment the telephone subscriber can for example decide by Call Waiting based on the caller ID message that shows and forward second calling to.
See Fig. 4 now, its explanation is according to embodiment of the present invention exchange calling subscriber id information between the elementary cell 110 of system 100 and local office 401.Signaling protocol of the present invention allows the response of the BTS management of many cell phone systems to the type II caller ID signals of input.This allows elementary cell 110 to detect and control input caller ID signals, and allows to send it back significant response to its originator (local office 401).In the following description, suppose to have only a physical circuit to connect to be to link to each other, and some mobile phone off-hook and some mobile phone are among engaging in the dialogue with every incoming line from local office 401.
As shown in Figure 4, CAS signalling tone 301 arrives elementary cell 110 from local office 401.Elementary cell 110 usefulness ACK message 302 respond.Send fsk data 303 with single message or a plurality of message format then.Base station 110 comprises a CPU or processor 422, it and each mobile phone 120 iBase station stored device 421 iLink to each other, and link to each other with receiver 112 with transmitter 111.Base station 110 receives after the fsk data 303, by processor 422 it is stored in the basic storage of each mobile phone, promptly is stored in each memory 421 1-421 4In.Simultaneously, the off-hook mobile phone 120 1-120 4Do not note these incidents, and can continue their call that is not weakened.Next, processor 422 retrieve stored are at calling subscriber's id information of each memory 421i and at its corresponding mobile phone 120 iNext timeslice send this information to this mobile phone.
See Fig. 5 now, shown in flow chart 500 explanation handle the method for work of incoming call person ID message according to embodiment of the present invention elementary cell 110.At first, as mentioned above, the fsk data 303 that comprises incoming call person ID message that receives is stored in the nonvolatile memory 421 of each mobile phone iIn (step 501).Should understand some mobile phone and be in " sleep " mode, some is in active mode.In " sleep mode ", mobile phone is in hook state, but only periodically start or " waking up " so that synchronously and check state variation.So next, safety chain (502) is set up with each mobile phone in base station 110.This step 502 is responsible for each mobile phone foundation (being at mobile phone under the situation of sleep mode) or rebulids being connected.Send message (on data channel) in step 502 elementary cell 110 to each mobile phone, call out to their notice calling caller IDs.If the mobile phone off-hook is so to the form that is designated as Call Waiting type indication of mobile phone.If the mobile phone on-hook, this indication is power supply ring or other suitable indication so.If next mobile phone wants to obtain caller ID message, just can respond with suitable message, this message depends on mobile phone off-hook or on-hook and can be different.
To the mobile phone of request calling subscriber's id information (step 503), elementary cell 110 sends calling subscriber's id information (step 510) to these mobile phones.If (do not have mobile phone request calling subscriber id information at the appointed time, elementary cell just withdraws from caller ID mode (step 521-523).) then this information be presented on the appropriate display equipment of mobile phone of this information of request (step 511).The mobile phone of this calling of selective reception responds in step 512.
If a plurality of mobile phone responses (step 513) are arranged, then the base station just judges which mobile phone obtains the control of Call Waiting response.To control judgement with the form of beeping sound indication and send (step 515) to the specified mobile phone responsible to calling caller ID call.This special mobile phone can be along this line signaling then, and selects to set up a connection (step 516) that connects as normal uniline.If have only the response of mobile phone, then its receives an expression it can accept the indication (step 513,515) of this calling.
To recognize in the art professional, can be cellular system according to the above-mentioned wireless system of principle of the present invention, and wherein elementary cell 110 is represented as a sub-district serving base station in the cellular radio network.
Should understand professional in the present technique field under the situation that does not depart from the principle and scope of the present invention that following claim states, can change above-mentioned in order to explain the description that essence of the present invention is done and various details, content and the arrangement of explanation.

Claims (10)

1. a telephone system comprises
(a) a plurality of mobile phones;
(b) elementary cell that can be connected with local office by one or more external call lines, this elementary cell comprises:
Be used for each transceiver that communicates with a plurality of mobile phones;
Be used for detection under the situation of the communication of not interrupting a plurality of mobile phones, confirm and receive the caller ID message handling device from local office, this caller ID message is associated with incoming call; With
Be used for to a plurality of mobile phone subscriber call ID message and the transmitter that is used for sending the transceiver of caller ID message to the selected mobile phone of a plurality of mobile phones.
2. the system of claim 1, wherein caller ID message only sends to the mobile phone of active response caller ID message informing.
3. the system of claim 2, if a more than mobile phone attempts to accept calling in the wherein selected mobile phone, then elementary cell judges which mobile phone is controlled and notify above-mentioned decision to described in check mobile phone.
4. the system of claim 1, wherein elementary cell also comprises:
It is individual that a plurality of memory areas, each mobile phone have one;
Be used for storing the processor of the caller ID message that receives at a plurality of memory areas; And
Be used for selected mobile phone to a plurality of mobile phones send from be stored in the corresponding memory area of selected mobile phone in the caller ID message of having stored among the transmitter of caller ID message.
5. the system of claim 1, wherein incoming call person ID message is type II caller ID message.
6. the system of claim 1, wherein each mobile phone is an off-hook.
7. the system of claim 1, wherein telephone system is a radio telephone system, therein elementary cell by wireless network on the RF channel with each mobile communication.
8. the system of claim 7, wherein elementary cell comprises that basic transceiver and each mobile phone comprise and is used on shared channel setting up the cell phone transceiver that time division multiple access inserts (TDMA) link through basic transceiver and elementary cell, and wherein each mobile phone communicates during the special-purpose timeslice of handset allocation in employing TDMA scheme.
Can be connected with local office through one or more external call lines and be used for elementary cell with a plurality of mobile communications, be used to handle the method for calling caller ID message, the method comprising the steps of:
(a) detect, confirm and receive not interrupt communicating by letter of a plurality of mobile phones from the next caller ID message of local office;
(b) to a plurality of mobile phone subscriber call ID message; And
(c) selected mobile phone sends caller ID message in a plurality of mobile phones.
10. be used to handle the elementary cell of the telephone system of calling caller ID message, comprise:
(a) be used for each transceiver that communicates in a plurality of mobile phones with telephone system, wherein elementary cell can link to each other with local office through one or more external call lines;
(b) be used to detect, confirm and receive the processor of communicating by letter that does not interrupt a plurality of mobile phones from the next caller ID message of local office that wherein elementary cell is to a plurality of mobile phone subscriber call ID message; And
(c) be used for sending transmitter in the transceiver of caller ID message to the selected mobile phone of a plurality of mobile phones.
CN98813595A 1997-12-12 1998-09-01 Multi-line telephone system for handling incoming caller ID messages Expired - Fee Related CN1126394C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6934497P 1997-12-12 1997-12-12
US60/069,344 1997-12-12

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CN1295751A true CN1295751A (en) 2001-05-16
CN1126394C CN1126394C (en) 2003-10-29

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6304642B1 (en) 1999-06-08 2001-10-16 Conexant Systems, Inc. Peer-to-peer data transfer using pre-existing caller ID CLASS FSK signaling infrastructure
US6366772B1 (en) * 1999-07-22 2002-04-02 Xircom Wireless, Inc. Caller identification delivery in a wireless local loop or other systems
FR2810829B1 (en) * 2000-06-27 2003-05-16 Sagem LOCAL RADIO TELEPHONY NETWORK AND ECONOMIC RADIO BASE FOR SAID NETWORK

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5581599A (en) * 1993-12-30 1996-12-03 Northern Telecom Limited Cordless telephone terminal
US6253089B1 (en) * 1995-12-04 2001-06-26 Nokia Mobile Phones Limited System for transferring information from a base station to portable phones
US5636266A (en) * 1996-02-15 1997-06-03 Mti International Wireless caller information processing system
JP2907155B2 (en) * 1996-10-31 1999-06-21 日本電気株式会社 Telephone equipment

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CN1126394C (en) 2003-10-29
WO1999031857A1 (en) 1999-06-24
AU9127998A (en) 1999-07-05
KR20010040294A (en) 2001-05-15

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