JPH07303141A - Address determination by caller instructions of telephone call basing on dialed suffix - Google Patents

Abstract

PURPOSE: To enable reception of any call by receiving a telephone number and a suffix code, translating the telephone number to another telephone number as a function of code and transferring the telephone call, so as to dial a specified telephone number among plural telephone numbers related to a callee and the suffix code. CONSTITUTION: In the case of a facsimile transmission from a subscriber of a telephone set S1 to a FAX 125 of a subscriber of telephone set S2, the subscriber of S1 connects an access code via a dial L and an exchange CO 25 to a local exchange TS 205. Next, after the telephone number of S2 has been dialed, a suffix such as *F# showing a facsimile service is dialed. When the suffix *F# is received following the telephone number, the TS 205 forms a message and sends it through a common line signal network 150 to a network control point NCP 225. The NCP 225 translates the telephone number and the suffix based on a table, sends them to the TS 205 and connects to the FAX 125.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to telephone call control and routing.

[0002]

BACKGROUND ART It is currently not uncommon to give subscribers a number of different telephone numbers. For example, a telephone subscriber may have a home telephone number, an office telephone number, a telephone number attached to a fax machine. further,
Telephone subscribers (may have other telephone numbers associated with voice or email services. Unfortunately unfortunately they now either remember all the telephone numbers assigned to others or keep them in their personal phone book. I have to write it down.

[0003]

SUMMARY OF THE INVENTION The problem of having to remember all the telephone numbers assigned to a particular telephone subscriber is in accordance with the present invention, as telephone calls are associated with dialed telephone numbers, such as suffixed dialed numbers. It can be easily solved by a facility for processing according to the code. Advantageously, the caller can specify a particular routing by dialing a predetermined suffix, which routing is independent of the dialed telephone number. Therefore, a person need only remember a particular number of the phone numbers that the other person has, but by dialing that particular phone number and suffix code, which of these numbers You can make a phone call at any time. For example, the calling party can dial the fax machine associated with the called party by dialing the subscriber's home telephone number and then dialing a particular suffix, such as * F #. The network responds to the dialed suffix to set up the connection to the called party's fax machine rather than the called party's home telephone number. If, on the other hand, the caller dials a different suffix, for example * M #, the network connects the caller to the electronic message service associated with the called party.

In an advantageous embodiment of the invention, the telephone numbers associated with a subscriber and their codes are listed in a central database such as a network control point. Thus, network elements, such as toll switches, respond to the receipt of respective codes, especially telephone numbers, by transmitting the received numbers and codes to a database for translation. The database then looks up the relevant list of telephone numbers in the usual way and translates the received telephone number into the telephone number associated with the received code. The database then returns the translated telephone number to the network element.
The network element then transfers the call to the telephone indicated by the translated telephone number.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, there is shown a communication network 200, which is, for example, the AT & T public switched network, which is, for example, a subscriber associated with telephones S1, S2. It provides a number of different communication services to subscribers such as. Network 20
0 is, inter alia, a plurality of interconnected toll exchanges (TS)
Including three, TS205, TS2,
10 and 215 are shown. These toll switches are any of a number of different well-known types of switching equipment, such as No. 1 available from AT & T. 4ESS (electronic exchange) may be used. These toll switches are also interconnected via data link 150, which
For example, it may be part of the well-known common signaling network (CCS). The toll switch exchanges data messages with each other via the CCS network 150 to establish a telephone connection from the originating switch to the destination toll switch.

Each toll switch, eg TS205, is also connected to one of a plurality of toll switches, such as CO25. The switching center connects the originating telephone (eg, S1) dialing a specific telephone number outside the coverage area of the switching center to the associated toll switch, eg TS205. The switching center also connects the call received from the associated toll switch (destination switch) to the terminating telephone, for example telephone S2. The network 200 further includes a number of centralized databases called Network Control Points (NCPs), which are commercially available from AT & T, which are various objects of the network 200, such as dial sophistication, which is the purpose claimed. Support the provision of services. For example, NCP225,230,
Such NCPs are located at various locations within network 200 and are interconnected with CCS network 150 by various signal transfer points, such as signal transfer point (STP) 220.

It is assumed here that the subscriber associated with the home telephone S2 is also associated with the facsimile machine 125 and the office telephone S3. In this case, the subscriber of the telephone S2 has the telephones S2, S3 and the facsimile machine 125.
You will have three phone numbers attached to. Therefore, the acquaintance of the subscriber of the telephone S2 or the person with whom he / she works must write or store such a telephone number in the telephone directory in order to send the telephone S2 or S3 or the facsimile to the subscriber of the telephone S2. I have to. Furthermore, in this case, the person who does not know the fax number of the subscriber of the telephone S2, but wants to send a fax to it, does not normally have the telephone number associated with the facsimile machine in the telephone directory, so to know that number. There will be problems. However, the telephone directory lists (by permission of the subscriber) the telephone numbers associated with telephone lines 126, 127. In this case, the person desiring to fax will send the fax by dialing the telephone number associated with line 126 and, if unsuccessful, by dialing the number associated with line 127.

According to the present invention, a person having a plurality of telephone numbers collects such numbers into a single number and distinguishes the telephone numbers from each other by a suffix or a code. Such a compilation is referred to herein as the enhanced dialing service. This allows the caller to control the call by dialing a predetermined suffix followed by the root or base telephone number when dialing a subscriber of Enhanced Dial Service, where the suffix is the caller. Will indirectly indicate one of the multiple telephone numbers of the subscriber that they want to reach. Furthermore, according to one aspect of the invention, each suffix code is determined by the subscriber of the service of the invention. In particular, suppose that the subscriber of telephone S2 is also subscribed to the enhanced dial service of network 200. At this time, the service record of the subscriber is one of the NCPs of the network 200, for example, NCP225.
Stored in memory as a table with other similar records. Such a record contains as an entry each telephone number and suffix code specified by the subscriber, and the first of these entries contains the basic telephone number specified by the subscriber.
The entry for the basic telephone number also contains a value indicating the number of entries contained in the record. An example of such a record is shown in FIG. 2, which assumes that the first entry in subscriber record 251, ie, route entry 252, is the telephone number of telephone S2. (Each of the letters N, x, a, b, c, d, etc. shown in FIG. 2 has no meaning within a particular number or number, and such a sequence of letters represents each telephone number. .)

The remaining content forming record 251 of table 250 includes other telephone numbers associated with the subscriber of telephone S2. Entry 253 specifically indicates the telephone number assigned to line 127 connected to subscriber's facsimile machine 125 (FIG. 1), and entry 254 is the telephone number of telephone S3, which is the subscriber's office. It is supposed to be a telephone number for. The subscriber of the telephone S2 is assumed to be the subscriber of the voice mail service 300 (FIG. 1), and this telephone number is stored in the entry 255. Enhanced dial services are also described in accordance with the features of the present invention in the D.D. S. Jordan 1
It can be used to implement services similar to the conventional personal locator service disclosed in US Pat. No. 4,313,035 of January 26, 982. From FIG. 2 it can be seen that each telephone number forming record 251 contains a particular suffix code. For example, entries 252 to 256 are code H for household,
That is, number 4, fax code F (numbers 3, 2
And 9) It contains a "B" (number 2) for the office. It is "VM" (numbers 8 and 6) for voice mail and "L" (number 5) for the above-mentioned locator service. Therefore, the caller can reach the subscriber of telephone S2 by remembering only the telephone number of telephone S2 and by one of the many other telephone numbers associated with it.

In particular, if the subscriber of telephone S1 wants to send a facsimile to the subscriber of telephone S1, the subscriber of telephone S1 can do so by a direct access path to network 200. Such a route can be set, for example, by dialing a so-called Group D suburban access code, for example, 01228 #. With such a code CO
25 sets up a connection between the telephone S1 and the network 200, which connection terminates on an empty incoming trunk of the group D trunk group contained in TS 205 (FIG. 1).
After dialing the access code, the subscriber of telephone S1 then calls the telephone number of telephone S2 (201-Nxx-x).
xxxX), and then the desired suffix, * F #, indicating the fax service. More specifically, referring to FIGS. 1 and 2, TS2
05 responds to the incoming trunk of the seized toll access trunk group by connecting the receiving circuit to the incoming trunk and dialing the digits that form the suffix, if any, dialed by the subscriber of telephone S1. collect.
If no suffix is received, TS 205 processes the call in the normal way. However, if TS 205 receives the suffix, it recognizes the reception of the suffix as a request for enhanced dial service. Along with that, the TS 205 forms a message containing the received telephone number and suffix, and then this message is CCS
Via network 150 and STP 220, for example N
Send to the appropriate NCP, such as CP 225.

Upon receipt of the message, NCP 225
Translates the telephone number contained in the message into the address in table 250 in the usual manner. If the address is not within the address range specified in Table 250 during the translation process, NCP 225 returns an error message to TS 205. The TS 205 then sends an error signal over the captured incoming trunk and then ends the call by putting the trunk on-hook. If the translation yields a valid address for this,
The NCP 225 accesses the related record 251
The suffix contained in the received message is compared with each suffix contained in record 251. In the present example, NCP 225 has a receive suffix that matches the suffix code contained in entry 253,
Retrieve the contents of that entry. NCP 225 then forms a message with its contents and sends the message to TS 205 through CCS 150. Upon receipt of the NCP225 message, TS 205 routes the telephone call via TS 210 and CO 30 in the normal manner to the connected destination of the telephone number (ie, abcd) contained in the NCP 225 message. In this example, the destination is the fax machine 125. Thus, according to the invention, the caller of telephone S1 dials the first root telephone number and then puts in the suffix to instruct the other telephone number to direct the telephone call. Advantageously in this case, the caller can reach the subscriber at another telephone number that the caller does not know if he knows only the subscriber's root (home) telephone number. .

As another example, if the caller of telephone S1 puts * B # in place of * F #, then NC
The message in P225 is the telephone number associated with that suffix, ie, eeee (entry 25 of table 251).
4) will be included. In this case, TS 205 transfers the call of telephone S1 to telephone S3, which is the subscriber's office telephone as described above.

On the other hand, if the caller of the telephone set S1 enters * VM # as a suffix, NCP2
The 25 message will contain the telephone number associated with that suffix, namely 800-xxx-axxx. As mentioned above, this telephone number is a normal voicemail service 300 number. Thus, upon receiving the NCP 225 message, TS 205 forwards the call and route telephone number to service 300. Service 30
0 allows the caller to enter a voice message in response to receiving a call and its telephone number and stores the voice message in a location indirectly associated with the received telephone number. Thereafter, the subscriber of phone S2 directs the call to service 300 and enters the relevant account code to access the voice message. Similarly, if the subscriber has an email (EM) service and the caller wants to send an EM to that subscriber, the caller can dial this by dialing the root telephone number and suffix EM. Can be executed. If the entry 257 is contained in the record 251, then the NCP 225 message contains the information "cccc" associated with the telephone number and its suffix.
Cccc indicates the telephone number and email address of the email service of the subscriber. In response to receiving this message, TS 205 sets up a connection to the email service and populates the subscriber's email address.

As stated above, the present invention as claimed is readily adaptable to implement a subscriber locator service based on the call transfer function. In this case, the function is associated with a particular suffix, eg * L #. Specifically, the subscriber of telephone S2 can direct the call to the operator at the console 226 associated with the NCP 225 to request that feature. When the operator answers the call,
The subscriber then requests the locator service by indicating the call forwarding telephone number associated with that suffix. The handler then communicates with the NCP225 processor,
Subscriber's enhanced dialing service record console 2
26 displays. The handler requests that the telephone number entry 256 of the next displayed record be rewritten with the new call forwarding number and that record be placed in table 250. Suppose the call forwarding number stored as entry 256 is 908-Nxx-bbbb, which is associated with phone S4. In this case, if telephone S1
If the caller enters the suffix code * L #, then the NCP 225 message will contain its phone number as a result of the above translation using record 251. In response to receiving the NCP 225 message, TS 205 translates the telephone number into a routing code indicating TS 215 and connects the call thereto. TS215
Then forwards the call to the telephone S4 via the CO 40, thereby performing the call forwarding function.

As another example, assume that a subscriber of telephone S2 has subscribed to Cellular (C), a mobile telephone service. As is well known, a subscriber of a celluler pays a so-called "airtime" fee for a call made from it or a call received at its cellphone.
Cellular phone users must pay such "airtime" charges for incoming calls,
Users are reluctant to give out their phone numbers to anyone other than a particular trading partner or family member. If the caller dials a suffix to call the other party's cell phone number, provided that the caller pays for that telephone charge, including so-called "airtime" charges,
It has been found that enhanced dialing services are available to associate the subscriber's root telephone number with the subscriber's cell phone number. However, standardizing the suffix that associates a cell phone number with a root number,
The CP, eg NCP 225, identifies the suffix and requests the requesting toll switch to charge the caller all costs and charges associated with the cell phone call, including so-called "airtime". Must be done.

Therefore, the entry 258 is the record 251.
, The suffix "C" was a standardized suffix throughout the telephone system that associates a root telephone number with a cell phone. Also the telephone S
Suppose one caller entered * C # as a suffix. In this case, NCP 225 translates the suffix and root telephone number into entry 258 and forms a message containing the telephone number associated with that suffix. In addition, NCP 225 recognizes that its suffix "C" is a standard suffix for cellular telephone services, and thus includes in the message an instruction to charge the caller for the call. NCP
225 then sends a message to TS 205. TS20
5 forwards the call in response to receiving the NCP 225 message to the destination connected to the subscriber's cellular telephone service,
Prepare billing records to track call-related costs and charges and associate the billing records with the calling party's telephone number so that "airtime" can be charged to the calling party rather than the called number To

In FIG. 2, the offices are New York (NY) Pennsylvania (PA) and New Jersey (N), respectively.
J) and the District of Columbia (DC) examples of translation records assigned to business customers.
In record 351, the suffix code specifies each of these locations. For example, entry 352
Suffix code is PA. Therefore, the caller who dials the root telephone number (from New York) will be connected to the Pennsylvania office by dialing the suffix code PA. Alternatively, business customers may have offices in different countries. In that case, the suffix code may point to any of these countries, assuming that the root telephone number is a business customer in the United States.

Referring to FIG. 3, a program implementing the present invention in a toll switch, such as the TS 205, responds to an incoming call received via the aforementioned Group D trunk group and, accordingly, block 400. Start with. At block 400, the program proceeds to block 401 where it enters a timekeeping loop, for example 20 seconds, waiting for the receipt of the calling telephone number. If the telephone number is received before the waiting time expires, the program exits the loop and proceeds to block 402. Otherwise, the program is 4
08, where the normal software clock (block 40) to determine if the wait time has expired.
Start with 0). If so, the program proceeds to 409 where the incoming call is terminated in the conventional manner and the incoming trunk that received the call is put on hook. If the wait time has not expired, the program exits this block and then re-enters block 401 in time, eg, 100 milliseconds, with a dashed loopback going from block 408 to block 401. It is expressed. At block 402, the program checks if the associated suffix code has been received. If received,
The program proceeds to block 403. If not, the program enters block 410, where the program enters a timing loop, for example 2 seconds, waiting for the suffix code to be received. The timed loop includes a no path for block 402 and a no path for block 410 to block 402 and operates similarly to the timed loop formed by blocks 401 and 409. At block 410, if the program finds that the suffix wait time has expired, the program proceeds to block 411 where it presents the call to the normal call processing program and exits.

In block 403, the program assembles the suffix code specifically associated with the received telephone number into a regular CCS message and sends the message to the NCP 225 via the CCS network. The program then waits for an NCP response (this is block 403).
(Represented by the dashed line between 404 and 404) upon receipt thereof, proceed to block 404. At block 404, the program checks whether the NCP response is an error message and proceeds to block 409, and if so, ends. Otherwise, the program will block 405.
, Where it extracts the translated number corresponding to the received suffix. At block 406, the program uses the normal billing record to route or receive the received telephone number, the translated telephone number, the calling telephone number (ie, so-called ANI) and the time of day to generate the regular billing record. The program in block 406 then provides the billing record and the translated telephone number to the call processing program so that the call can be connected to its intended destination. There the program heads for the exit.

Referring to FIG. 4, there is shown a general block diagram of a toll switch of network 200, such as switch 205, in which the principles of the present invention may be implemented. More specifically, the toll switch has (a) a CPU 510 for controlling the overall operation of the switch, and an incoming call received via a network link (trunk) to the network 200 via each of the toll links 512. Network 502, which is a mechanism for giving to another exchange of
(C) Network link, and thus a communication interface 50 for interfacing telephone calls to a network switch.
1; (d) CCS network 150 with common bus 506
A CCS terminal 503 that interfaces with the CPU 510 via a; and (e) a group of service circuits 513 including MF receivers and transmitters. CPU510
Specifically includes (a) central control 505, (b) program memory and call memory, and (c) peripheral circuit interface 509 for interfacing a master control competition (not shown) to central control 505. The programs implementing the present invention and other programs are stored in the memory 507, while the related tralech data, billing records, translation tables, etc. are stored in the call memory 508.

The above description merely illustrates the principles of the invention. Numerous configurations can be devised by those skilled in the art, which implement those principles within the spirit and scope of the present invention, even if they are not explicitly shown or described herein. is there. For example, the direct access path described above may be by bypassing the telephone connection with the network 200 or by dialing a predetermined number to set up the connection between the caller and the toll switch of the network 200 through the local switch. Can be set. In response to receiving these service numbers, the toll switch may prompt the caller to enter the called route number and suffix or code. Alternatively, the invention may be implemented at a local exchange, thereby eliminating the need to set up a direct access connection between the telephone and the network 200. As another example, a number of different telephone numbers associated with a particular subscriber may be used simultaneously as the root telephone number. In that sense, a person who knows only one of the root telephone numbers can access other telephone numbers of the subscriber. For example, if a subscriber specifies a fax phone number and a home phone number as root numbers, the calling party can dial the fax phone number and suffix * H # to access the subscriber's home number, The reverse is also possible. As another example, the calling party may enter a suffix code after the call connection has been set up so that the caller may direct the call from one location to another. In particular, an echo canceller may be installed in each long distance trunk line (for example, 512 in FIG. 4) in order to remove so-called echo in each call connection in the long distance switching network, for example, the network 100. Advantageously, such an echo canceller may include a multi-frequency receiver. Thus, when a caller enters a code during a call, the code is detected at the echo canceller receiver included in the associated toll trunk. The detected code is then associated with the central control 505.
(Fig. 4) and processed. That is, the detected code is translated in the manner described above and the call is then directed to another telephone according to the translated telephone number. Alternatively, the code entered can be translated into an identifier indicating a particular network function, such as a request for a conference call.

[Brief description of drawings]

FIG. 1 is a block diagram of a communication network implementing the principles of the present invention.

2 shows an example of a subscriber record implementing the invention at the network control point (NCP) of FIG.

3 is a block diagram of a program for implementing the present invention in the toll switch of FIG.

FIG. 4 is a general block diagram of the toll switch of FIG.

[Explanation of symbols]

 401 Telephone number reception 402 Suffix code reception 407 Telephone call transfer

Claims (8)

[Claims] 1. A method for use in a communication system, the method receiving a dialed telephone number and a dialed suffix code during a telephone call, the received telephone number being a function of the received code. A method used in a telephone system comprising the steps of translating to another telephone number and forwarding the telephone call to the destination indicated by the other telephone number. 2. The method of claim 1, wherein the code is at least one dialed non-numeric character.
The method further comprising at least one dialed digit, the method further using the at least one letter to distinguish the code from the telephone number, and using the at least one dialed digit to dial the other telephone number. A method as used in a telephone system, comprising the step of associating with a designated number. 3. The method of claim 2, wherein the non-numeric character is an asterisk (*) or a pound sign (#). 4. The method according to claim 1, wherein the dialed telephone number is further stored as a route telephone number in a list of telephone numbers, and the route telephone number and other telephone numbers in the list are stored respectively. A method as used in a telephone system, comprising associating as a function of a code the other telephone number and the dialed code to form an entry in the list. 5. The method of claim 4, further comprising placing at least one other entry in the list,
A method as used in a telephone system, comprising the step of allowing the one other entry to implement a call forwarding function. 6. The method of claim 5, further dividing the one other entry into a first field and a second field, the first field including a call forwarding telephone number. Method of use in a telephone system, characterized in that the second field comprises the step of including a predetermined locator code operative to associate the received telephone number with the call forwarding number. 7. The method of claim 1, wherein the received code is a standardized code that associates the dialed telephone number with the other telephone number. How to be done. 8. The method of claim 6, wherein the other telephone number is a mobile telephone number.