KR930010025B1 - Special service call routing - Google Patents

Abstract

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Description

How to Route Fax Service Calls

1 is an overall block diagram of a broadcast system for implementing the present invention.

2 and 3 show a memory arrangement of a database of a relay transfer switching center for call processing.

4 and 5 are flowcharts of a program for controlling the operations required to carry out the present invention at the return entry and exit exchange stations, respectively.

* Explanation of symbols for main parts of the drawings

101, 102: outgoing fax machine 104: incoming fax machine

106, 107: local exchange return (LEC) exchange

107 local exchange station 110 IXC exchange station

112: switching center network 114: processor

117: DTMF receiver 118: CCS transceiver

120, 250: Database 142, 144, 146, 148: Segment

150: advance IXC exchange 182: intermediate IXC exchange

180: memory and forward equipment 252: voice-fax (V-T-FAX) translation table

275: memory and forward indicator

The present invention relates to facsimile services and other special forms of telecommunication calls. Facsimile services are becoming increasingly popular due to the wide availability of relatively cheap fax machines. But facsimile services still have some problems.

One common problem is when a customer's phone number is known but the customer's fax number is unknown, and when the fax number is unknown, a fax message is sent to the customer. In such an environment, a separate call is typically required to identify the customer's fax number. This wastes the time of the calling and receiving customers and increases the cost as additional calls are required.

International facsimile calls should ideally be transmitted over select circuits with low distortion rates because existing facsimile signals can be greatly distorted through many other international voice transmission facilities. There is also a problem in accessing the selection circuits.

Improvements in facsimile services allow customers facing a busy or unresponsive situation at the time of a fax call to send a facsimile message to a memory and forward facility for future transmission to the incoming facsimile machine when it is available. .

However, this service redial involves processing time consuming calls to the memory and forward facility and to redial the called number for the facility for future fax delivery. In light of the above, the caller does not need to dial a fax number, but the fax machine handles fax calls, handles international fax calls through circuits with particularly low distortion, and sends calls to storage and forwarding facilities. Simplification is needed in the art. The same need arises for other types of special long-distance calls, such as calls to recipient voice messaging systems and electronic mailbox systems.

According to the principles of the present invention, the above requirements are met and improvements to the prior art can be made, i.e. in one embodiment of the present invention, in handling facsimile calls over a common carrier network, the facsimile calls are specially processed. The service mark layer is processed as a fax destination. Preferably this hierarchy mark provides for the automatic transmission of fax calls from the number of the called voice station to the relevant fax number, the automatic routing of international calls through the selected facility, and the semi-automatic conversion of existing fax calls to busy memory and forward calls. Various special fax features are implemented.

It is a feature of the present invention that a fax caller dials up an existing (voice) telephone line so that a call can be automatically connected to a fax machine serving the telephone line rather than a telephone.

This operation causes the processor to consult the memory so that the destination exchange controller or processor recognizes the fax progress layer mark, derives the fax destination number serving the called party, and then dials the dialed number. By controlling the routing of a fax call to the fax destination rather than the identified phone.

In an international fax call, the present invention confirms to the international gateway exchange whether the call is a facsimile call and provides selected transmission facilities with low distortion for good communication.

A feature of the present invention is that facsimile calls are identified on the calling party's directory number of the calling line or at the calling customer's directory number at the local switching center and based on the calling customer directory number forwarded through the automatic number identification facility at the relay carrier. will be. In the latter embodiment, the memory table maintained at the relay return (IXC) outgoing exchange station translates the called voice station number to the incoming facsimile number to provide data so that the call completes on the facsimile line automatically.

In this embodiment, some circuits that connect a private domestic exchange (PBX) to the switching center may carry fax or other traffic. The customers of the lines are asked to key a signal such as (3 = F for fax) or 8 (= V for voice) to identify whether the special call is a fax.

In another embodiment, the calls are signed by a special alternative common carrier code such as 100XXX or a #signed or keyed at a duplex multi-frequency (TMF) customer station that is dialed by the customer and is recognized as designating a fax call in the network. From prefix or fax marks containing non-numeric indicators, such as #signed plus one or more digits, i.e., ISDN lines, to data sent with messages establishing a connection Is recognized as a fax call.

Preferably, this hierarchical mark is an automatic transmission of a fax call from the number of the called voice station to the relevant fax number, automatic routing of an international fax call through selected facilities, and of an existing fax call in a busy or unanswered situation. Special fax features are implemented, including automatic conversion to memory and forward calls.

If any call is recognized as a fax call, the fax caller dials an existing (voice) telephone line and may cause the call to automatically connect to a fax machine serving the telephone line instead of the telephone. This operation allows the processor to consult the memory to recognize the fax progress layer mark at the destination office controller or processor or non-work control point processor, and to derive the fax forwarding number serving the called party. By controlling the routing of the fax call to the fax destination to the fax destination rather than the telephone identified by the number. When this is done, the fax message waiting indication can be activated on the called voicephone.

Another feature of the invention is that when a facsimile call is recognized, the recipient is subscribed to the call to detect whether the calling customer has dialed an additional number to request a memory and forward connection. The customer dials an additional number in response to hearing the called fax number busy or detecting that the called fax number does not respond. When an additional number is detected, the call is routed to a memory and forward facsimile facility, and the previously dialed call number and originating customer number are automatically recalled for delivery and billing of the call and confirmation. It is forwarded to memory and forward facility. Instead, the network can automatically forward calls from the calling customer to the memory and forward facility in a busy or no answer situation.

Another feature of the invention is that the called customer can specify that if the fax call is busy or in an unanswered state, the call is automatically rerouted to the fax storage and forwarding facility. In an international fax call, the present invention provides facilities at the international gateway office to ascertain whether the call is a facsimile call and to automatically route the call through selective transmission facilities with low distortion for good communication. In addition, automatic routing from the voice gateway to the relevant fax number by direct or shared database access from the international gateway exchange, leading to the relevant facsimile machine in countries where automatic rerouting of calls from voice to facsimile is not performed. Will be provided. In the case of Direct Services Dialing Capability (DSDC) calls, such as "800" or "Freephone" calls, a DSD Network Control Poing, or database that is shared by multiple Relay Transport (IXC) exchanges. Provides the data needed to process the calls in accordance with the principles of the present invention.

More generally, numerous calls made of specific calls of various wide area layers can be handled well by allowing routing to a destination other than the nominal destination based on the call type. Types of calls include, for example, facsimile calls, direct calls to voice message systems serving prospective recipients, and calls to electronic mailbox systems serving prospective recipients.

Calls of this type can be set up automatically, e.g., at the local switching center automatically from the calling equipment's line number on the calling line or from the calling customer's directory number (and communicate via the information numbers from the local switching center to the IXC switching center). The IXC switching center is set up on the basis of the calling customer directory number, which is forwarded through an additional number collected from the calling originator in response to an automatic number identification facility or an immediately provided network.

Accordingly, the present invention is a device that recognizes a fax call and automatically transmits a call to a voice destination to a fax machine associated with the voice destination in response to the recognition. A fax call indicator, such as an on-going service mark layer in the call CCS message, is used to communicate to the exchange's exchange that the call is a fax call.

1 shows in block diagram the main elements necessary to practice the invention. Three facsimile machines are shown: outgoing facsimile machine 102, outgoing facsimile machine 101 connected to ISDN destination 105, and incoming facsimile (fax) machine 104.

According to one particular embodiment, each of the facsimile machines is registered with a return exchange service station serving the customer, and as described below, data is recorded at a suitable exchange station where the customer's line is in fact connected to the facsimile machine. Each of these fax machines has an associated telephone number. The originating facsimile machine 102 is connected to a service local exchange 106 and the originating facsimile 101 is connected to a local exchange 107 that is equipped to support ISDN. The number of the originating facsimile machine 102 is identified by automatic number identification (ANI) at the connected local exchange carrier (LEC) switching center 106, also referred to as a call number thereafter. The ANI is also provided to the facsimile machine 101 to verify that the relevant customer is subscribed to the service.

The incoming facsimile telephone number will hereinafter be referred to as the relevant facsimile number. In this example, the caller at the fax machine 102 or 101 does not know the telephone number of the fax machine 104 and only knows the voice telephone number of the customer served by the fax machine 104. However, the relay carrier network has the information stored in the table, as the voice telephone number discussed below is translated into the number of the facsimile machine 104.

When the originating fax machine 102 designates a call as the called number (voice telephone number of the customer receiving the fax message), it is identified by the ANI facility at the local switching return office 106 and subsequently referred to as the ANI number. The called number and the number of the facsimileer 102 are sent to the incoming relay return (IXC) switching center 110.

In this particular embodiment, the IXC exchange is a 4ESS ^TM exchange, which is described in The Bell System Technical Journal, September 1977, Vol. 56, No. 7, pages 1015-1320. Signaling between the LEC switching station 106 and the IXC switching station 110 is performed using feature group D signal transmission signaling that allows the transmission of the ANI data. Feature group de-signaling is specified in the Bellcore paper, April 1986, first edition, section 6, Technical Reference TR-NPL-00275: Notes on the BOC Intra-LATA Networks-1986. The IXC switching center 110 includes a switching network 112 interconnecting communication ports, a processor 114 for controlling the operation of the switching center, and a dual tone multi-frequency (DTMF) receiving DTMF signals from the originating facsimileer 102. ) Between the receiver 117, the MF receiver 116 receiving a signal from the local switched carrier switching center 106, the common channel signaling (CCS) transceiver 118 that transmits a message to another IXC switching center, and other items. Includes a database 120 (shown in FIG. 2) that stores a table 122.

The table 122 includes an ANI number associated with the facsimile serviced by the switching center 110, an indicator for each of the facsimile machines, whether storage and forward services have been provided to the facsimile machine, and an indicator regarding hybrid usage services. , And indicators for automatic connection to memory and forward when in a call or no answer.

More generally, many methods can be used to identify that any call is a fax call. The customer of the facsimileer 102 may also signal a fax call by dialing a special prefix, such as a special common carrier identification prefix that is recognized by specifying a fax call at the local exchange 106 or the entry exchange 110. The entry exchange responds to the prefix received by the customer via the local switching center 106 or transmitted in the form of a special signal from the switching center 106 by treating the call as a fax call described below. The customer at the facsimile machine 101 connected to the local switching center 107 by an ISDN connection makes a fax call to the switching center 107 via the fax indication 109 in the call setup message 111. Signal automatically. The exchange 107 is passed to the entry exchange 110 on the fax indicator 115 in the signaling message 113.

The presence of the fax indicator 115 signals the switching center 110 that the associated call is a fax call.

Another way of recognizing a fax call involves switching layer translations performed at the calling station to recognize that the call is a call originating from a facsimile machine by performing switching layer translation at the calling station. This switching layer is then transmitted to the entry switching station by the information number, as described below. The information may instead be sent in a CCS message.

Another way of recognizing a fax call is by prefixes such as #, # plus one or more digits (eg # 3 = 1), or alternative common return codes such as 10XXX. The local exchange recognizes this prefix and either signals it to a toll carrier in one of the above methods, or simply passes the prefix to the incoming exchange, just like the rest of the numbers.

When an incoming call from the LEC switching station 106 is detected at the switching center 110, the call connects to the MF receiver 116 via the network 112 to receive the called number and the ANI number sent from the switching station 106. do. Processor 114, operating under the control of program 119, records these numbers as they are received and records database 120 to determine if the ANI number matches the facsimile or the ANI number matches a hybrid usage line. Check). The processing of the hybrid use line will be described below with reference to blocks 230 and 232 of FIG. In this case, the ANI number corresponds to the facsimile machine 102, which also has a memory and forward indicator indicating that the facsimile machine is subscribed to a memory and forward service. The database 120 also includes screening data that prevents a particular ANI from making long distance calls outside of a certain range or from making international calls. If the call is directed to a DSDC subscriber service, such as "800" or Freephone service, processor 114 may call the appropriate DSD Network Control Station (DSD / NCP) 121 to obtain accurate processing information as in the prior art. Further processing and information retrieval for called party premature features, such as querying and translating voice to fax, as well as repeating storage and forward, for example. This information must be passed to the exit IXC via the field in message 140. Screened calls are simply not accepted, and callers receive a disconnect.

After the call is received at the switching center 110, the call routes to the exiting IXC switching center 150, which can access the LEC switching station 170 serving the called number. In this case, the connection must pass through the intermediate IXC exchange 182 to reach the entry IXC exchange 150. CCS message 140 is sent to intermediate IXC switching center 182 using CCS transceiver 118 and controlled by processor 114. The message 140 includes a segment 142 containing an ANI number, a segment 144 containing a fax flag indicating that this is a call originating from a fax machine, a segment 146 containing a called number, and a call. Segment 148 that includes an identifier that identifies. These messages are sent for every call that is recognized as a fax call, regardless of which fax characteristics the calling customer is subscribed to. Instead, two or more flags may be used, that is, a fax flag indicating that this is a fax call and one or more flags specifying calling customer fax characteristics such as routing through a good facility or automatic rerouting. A good facility flag can be set in response to an exchange layer indicator and can specify that the caller will be willing to pay a premium to have fax calls routed through good international facilities.

Intermediate IXC switching center 182 receives the message through the CCS facility and the associated call via the transmitting facility, establishes an additional connection to the entry IXC switchboard 150 and sends a message 140 to the switching center.

The intermediate IXC switch office 182 and the entry IXC switch station 150 are similar to the entry IXC switch station 110. The call is connected to the network 154 of the outgoing IXC switching center 150. The message 140 is received at the CCS transceiver 152 of the switching center 150. The processor 156 of the switching center 150 operating under the control of the program 157 checks the message 140 and recognizes the fax flag 144. Processor 156 then queries database 250 (shown in detail in FIG. 3) of switching center 150 to access translation table 252, which translates the voice to fax (V-T-FAX). This table translates the called number, such as 253, to the relevant fax number, such as 263, for the LEC exchange serviced by the entry IXC exchange. Entries 253, 254, and 255 may be the voice or fax number. Fax numbers are recognized because the corresponding fax numbers 263, 264, 265 match the voice or fax number. For example, low pressure appears between entries 255 and 265 indicating that directory number 255 is the number of the facsimile machine. Facsimile customers who do not need to translate voices to fax numbers do not need the numbers in table 252 because the call can be completed normally regardless of the presence or absence of a fax flag. If these customers require special fax characteristics, a number such as 225 is used. In the case of a voice number, a message waiting lamp indicator such as 278 associated with voice number 253 is available, which, if set, causes the fax message waiting lamp on the voice station to light up when a fax call is received. The message waiting lamp emits light via a data message sent from the originating exchange to the local exchange connected to the voice line. This is particularly simple when the voice line is an ISDN line.

The translation table also has an indicator 273 specifying that the call should be automatically routed to a memory and forward facility, such as 180, so that all overflow fax traffic can be recorded for future transmission to the desired fax terminal. In the case of a call where the dialed number is a voice number such as 253, the outgoing IXC switch station 150 forwards the associated fax number, rather than the called number, to the storage and forward (S / F) facility 180. As a result, the call is completed with the LEC switchboard 170 serving the S / F facility 180.

If the fax machine 104 is available, the call is set up. If the call is a fax number such as 255 and the fax number is busy and the memory and forward indicator 275 is set, the call is forwarded.

In an international gateway exchange system, V-T-FAX translations are made for countries where the features of the present invention are not implemented. The translation may be stored in an exchange system or in a remote database (not shown).

The database 250 may perform various other translations in addition to the translations that translate the voices into faxes. If a weekly or weekly completion of one of several fax numbers is required or another more complex routing is required, a translation from a call number, such as 254, to a pointer, such as 264, that points to a block of memory 280 This is done. This block includes a number of different destinations 282, 282 depending on the weekday or weekday. In this case, one of the destinations, namely destination 282, is a memory and forward facility 180 that automatically stores the facsimile message for later delivery.

The block also includes screen data 286 that blocks calls from any numbers or only completes calls from any numbers. This is useful, for example, to prevent the facsimile from receiving excessive "junk fax" messages.

The database 250 also includes a translation block 290 for international calls in countries where translations are not performed for faxing voice to fax. The numbers 291, 292 and 293 have corresponding translation results 296, 297 and 198. Numbers 291 and 292 denote voice numbers with corresponding fax numbers 296 and 297. The number 292 becomes a fax number as indicated because the corresponding number 298 is the same. If the called number is not found at block 290, the called number is a fax number and the call can be completed normally. There is a requirement that enhanced services (including memory and forward faxes) can be provided by anyone. If the fax machine 104 is busy or the fax machine 104 does not answer as directed by the caller via the busy message 172 sent from the exit IXC 150, the fax machine 102 The customer in E. can key DTMF group signals to request a memory and forward connection. Due to the above requirements, it is necessary to key the information in order to clearly specify the memory and forward return desired by the customer. More specifically, the memory and forward transfer may in this case be a transfer associated with a relay transfer and thus be connected to a fax machine using a relay transfer switching center. More simply, the storage and forward facility 180 accessible from the entry IXC exchange 110 is also coupled to the facsimile 104 via the intermediate IXC exchange 182 and the entry IXC exchange 152. If the customer hears a call or recognizes that the facsimile 104 is not responding, the customer of the facsimile 102 may key the data to clearly specify the use of the memory and forward facility 180 in this call. Will be. The connection from the IXC switch station 11 to the facsimile machine 104 is removed and instead the facsimile machine 102 is connected to the storage and forward facility 180 via the IXC switch station 110.

The common channel signaling message 190 is sent to the storage and forward facility 180. This message 192 includes a segment 192 with an ANI number, a segment 194 with a called number, and an optional segment 196 for such additional billing data, such as subaccount billing numbers. . Both the ANI number and the called number remain in the memory of the processor 114 and do not need to be dialed or retransmitted to the IXC carrier switching center 110. The storage and forward facility 180 sends a fax flag with a fax call setup message. For customers who wish to make an automatic connection to the storage and forward facility during a call, the call indicator 174 on the CCS message is used to automatically establish a connection to the storage and forward facility.

If the recognized fax call is recognized as a DSDC call at the entry IXC switching center 110, a request message similar to the message 140 is marked with a fax flag 144 marked with Direct Services Dialing (DSD) / Network Control Point (NCP). Is sent to (121). The DSD / NCP 121 translates the request message using a database having data similar to that in the database 250 for voice to fax number translation and converts the fax translated number in the response message to the switching center 110. ). The call is then processed as if the fax translated number is being called by the calling station.

If the called customer has such incoming characteristics to redirect or memorize and forward to another station, the data representing these characteristics is supplied in response message from DSD / NCP 121 and sent to outgoing IXC switching center 150. Forward to 140. In the case of screening, if the call is screened such that completion is rejected, the call need not be forwarded from the entry IXC 140 to the exit IXC 150 but based on the data returned in the response message. Can be blocked.

4 shows a flowchart of an operation performed at an entry exchange station under the control of a program 119. The ANI number and the number called for the call are received at the entry exchange (operation block 202. This block is executed as in the prior art.

In addition, special billing information, such as sub-account billing numbers, may also be received with the call (action block 204). Subaccount claim procedures are described in US Pat. No. 4,776,004 to the inventor, Bauer et al. The ANI number is then checked to see if it is associated with the facsimile machine (test 206) or with a hybrid use rotation. Otherwise, routine call processing in accordance with the principles of the prior art is executed for the call (operation block 208). If the ANI number is associated with a facsimile machine, a fax flag and, alternatively, a good facility routing flag is inserted in the CCS message that will be sent to the next exchange where this call is routed. Next, the test 212 checks whether the memory and forward indicator for the ANI number is one. If not 1, the call is processed from the point to a routine except for the retention of the fax flag in the CCS message that is generated (action block 214). If the memory and forward indicators are 1, a duplex tone frequency (DTMF) receiver is attached to the call (operation block 216), which is then processed by the routine as described above with respect to the operation block 214. . If a consecutively dialed DTMF number is detected and indicates a store and forward request (action block 208), the outgoing call from the entry IXC switching center is truncated (action block 220), and the stored and forwarded dialed by the customer. A connection to the customer selection memory and forward facility identified by the request is established (operation block 222). The entry IXC switching station then sends the ANI number, the call number, and any special information generated at operation block 204 to the storage and forward facility (operation block 224). The call is then processed as a routine facsimile memory and forward call, where the CCS call setup message will contain a fax flag. Of course, it is necessary to make sure that no S / F call is received by another S / F system, because in this case, a lot of S / F message delivery can occur for one call (action block ( 226)). After the called terminal is busy and a message 172 including the call indicator 174 is detected (action block 240), if the calling fax number is automatically stored and forwarded during the call (test 242). Positive result), the operations that start with the operation block 220 are executed. If the result of test 242 is negative, the system continues to wait for the memory and forward request for the customer to dial.

If the ANI number is associated with a mixed-use line, a DTMF receiver is attached and the caller is quickly assigned a key of 3 (equivalent to "F") for fax use or a key of 8 (equivalent to "V" for nonvoice). Key (operation block 230). When 3 is detected and indicates a fax call, the above-described operations commencing with operation block 210 are executed. If 8 is detected to indicate fax emergency, then routine call processing is executed as indicated in operation block 208. Any different key pair may be used to indicate fax or non-fax.

There are other ways to recognize a fax call.

The fax call from the ISDN may be recognized by the fax identifier in the signaling message received at the entry exchange (block operation 203). In response to receiving the call with this identifier, the above-described actions beginning at action block 210 are performed.

Calls from station 102 are also prefix codes whose special alternative common carrier or initial characters are taken from numbers of series 10XXX that are not used to identify common carriers and are not otherwise assigned are non-numeric, such as # or # 9. Can be recognized as a fax call at the entry switchboard (operation block 201). The particular alternative common return code must also explicitly specify the common return, because otherwise the customer cannot explicitly specify the alternative common return on the fax message sent in accordance with the principles of the present invention. In response to receiving the call with this special code, the above-described actions beginning at action block 210 are executed.

Another way to recognize that a call is a fax call is: Bellcore Paper, April 1986, first edition, section 6 Technical Reference TR-NPL-000275: ie feature group ratio of equal access signaling as described in NoTes on the BOC Intra-LATA Networks-1986 And feature group D provides two numbers of transmissions, called information numbers (" II " numbers), between network switching centers to classify calls. II numbers have traditionally been used to identify automatic telephones, hotels and the like, and have recently been used to identify services such as weather private networks and wide area telephone services. Number pairs can be used to identify fax calls. This II number may be transmitted by the local switching center 106 and may be received at the IXC switching center 110 as a method of identifying the call as a fax call (operation block 205). Once the call classification is communicated to the IXC network, this classification may be sent to another exchange in the IXC network via the indicator 144 in the CCS message 140. Instead, the II number may be transmitted in additional segments as part of CCS message 140 and may be interpreted at IXC switching center 150 to recognize a fax call or to recognize a call indication of another special service type.

5 is a flow chart for the operation performed at the entry IXC switching center. The incoming call CCS message is received at operation block 302 according to the prior art. This message is checked to see if the facsimile flag is present (test 304).

If the facsimile flag does not appear, the call is normally handled as in the prior art (operation block 314). If the facsimile flag appears in the CCS call message, a test 306 is used to determine whether this is an international call. In the case of an international call, special handling of the international call is performed. First, a check is made to see if there is a V-T-FAX translation for the international call number (test 307). If the translation is present, the call number is replaced with the translated number (action block 308).

This call is then routed through the facility with a low distortion rate that is satisfactory to transmit the facsimile signal (operation block 309).

If it is not an international call, a check is made against a translation table that translates the voice to fax to see if the call number is in the "voice" portion of the table (test 310). If so, the call number is replaced with the associated fax number (operation block 311). The directly received or translated fax number is further translated (test 312) to see if automatic routing to memory and forward has been set when busy or unanswered within a predetermined time indicator. If the fax number is busy or there is no answer and the indicator is set (test 313), the call is routed to the memory and forward facility (action block 314). If the voice number has an associated indicator such as 278, then the fax message waiting indicator corresponding to the voice number is set (action block 316), and the call is then normally processed (action block 315). Translations as described above with respect to database 160 are flexible, can vary during different times of the week and / or week, and can automatically redirect calls for one fax number to another fax call, Automatic routing to the storage and forwarding facility 180 can be achieved either at the time of the call or at the appropriate time of the week / week, and the call is alternatively called from the entry exchange. When forwarded to the destination, the called party must be billed separately for a portion of the call: If it is associated with a combination voice / fax instrument call number, the presence of a fax flag indicates to the entry IXC exchange that this is a fax call. Recognize and initiate any incoming action needed to allow the call to be processed as a fax call.

Although the detailed description so far has been described with regard to facsimile calls and identification of calls via ANI, an apparatus for identification of other layers of special calls and of the calling layers by other means can be used. All that is needed is means for identifying a calling layer, means for transmitting the calling layer to an outgoing or local destination switching center controller or processor, and translated the dialed number to an appropriate number associated with this number based on the calling layer. Means to do that.

Claims (66)

Receiving a terminating number of a first destination upon a call from the facsimile station, and translating the destination number into a facsimile facility code serving the first destination. . In response to receiving a call from the facsimile station, determining whether the designated call destination is another facsimile station, and in response to determining that the call destination is not another facsimile station, sending the call to the designated call destination. And completing the fax destination associated with the fax destination. Recognizing whether a call exists from a facsimile station, in response to the recognition, setting a facsimile indicator in a common channel signaling (CCS) message to the switching device, and treating the call as a facsimile call at the switching device. How to set up a fax call that includes. 4. The method of claim 3, wherein the step of recognizing comprises executing a service translation layer at a local exchange to determine if the line is connected to a facsimile station. 4. The method of claim 3, wherein the recognizing step includes receiving an Automatic Number Identification (ANI) number of a calling customer and translating the ANI number to determine whether a line associated with the ANI number is connected to the facsimile station. How to set up a fax call that includes a step. 4. The method of claim 3, wherein the step of recognizing comprises: recognizing whether the call exists from a line causing a facsimile call and another call, connecting a receiver to the call, and a signal identifying a facsimile call at the receiver for the call. Detecting a fax call method; 7. The method of claim 6 wherein the receiver is a dual tone multi-frequency (DTMF) receiver and the signal is a DTMF signal that is keyed at a customer station. 4. The method of claim 3, wherein the processing step includes detecting whether the call is an international call, and if the call is a facsimile call, routing the call via a special transmission facility that sends a facsimile call. How to set up a fax call. 4. The method of claim 3, wherein the processing step comprises: determining whether the call destination is not another fax station, translating the identity of the destination to the identity of an associated fax station, and translating the call to the associated fax station. A method for establishing a fax call comprising the step of completing a fax station. 4. The method of claim 3, comprising detecting whether the destination of the call is busy, and automatically reconnecting the call to a storage and forward facility for future delivery. 4. The method of claim 3, wherein following the call processing step, in response to receiving dialed information from a caller of the call, the caller stores and forwards the call so that the caller stores a fax message for later delivery without recalling. A method for establishing a fax call comprising the step of connecting to a facility. A translation table for storing voice-to-fax number translations, and operating under the control of a program, detecting the fax indicator in response to receiving a call with a fax indicator and a voice destination number, the fax indicator; And processor means for translating the voice number into a fax number and completing the call with the fax number if is detected. A table that stores the telephone number of the facsimile machine that initiates the call serviced by the switching device, and operates under the control of the program, and is used for calling from one of the facsimile's telephone numbers for common channel signaling (CCS). A processor means for embedding a fax indicator in the message. 14. The exchange apparatus of claim 13, comprising means for receiving the telephone number from another exchange apparatus as an automatic number identification (ANI) number. Operating under the control of a service indication layer and a program of a line connected to a facsimile machine, recognizing the service indication layer and in response to the recognition on a call, inserting a fax indicator into the call common channel signaling (CCS) message; Exchange device comprising processor means. A dual tone multi-frequency (DTMF) receiver, a table storing the switching number of the facsimile machine initiating the call serviced by the switching device, and operating under the control of the program, from one of the telephone numbers to another Recognize a fax call to a local network, connect the DTMF receiver to the call, and in response to a signal received by the DTMF receiver, extend the call to a fax storage and forwarding facility, And processor means for forwarding a number and said another number to said fax storage and forward facility. Recognizing whether a call exists from a facsimile station, in response to the recognition, setting a facsimile indicator in a common channel signaling (CCS) message to the switching device, treating the call as a facsimile call at the switching device, And in response to receiving dialed information from the caller of the call, connecting the call to a memory and forward facility that stores the fax message for later delivery without the caller having to recall. Wherein the recognizing step includes receiving an Automatic Number Identification (ANI) number of a calling customer, and translating the ANI number to determine whether a line associated with the ANI number is connected to the facsimile station. And the processing step calls for the call Determining that the destination is not another fax station, translating the identity of the destination to the identity of the associated facsimile station, and completing the call with the identified associated facsimile station. 4. The apparatus of claim 3, wherein the step of recognizing further comprises: detecting at the local exchange whether the caller's service layer of the call is a facsimile, and setting a facsimile indicator, the indication that the call is a facsimile call. Setting up a fax call comprising the step of sending it to the server. 19. The method of claim 18 wherein the indication is conveyed from a local exchange return to an interexchange return in an information number. Recognizing the designated call type in the ingress switching system for the communication network, transmitting data identifying the nominal destination of the call and data identifying the designated call type to the outgoing exchange system in the communication network; and Translating the combination of the designated call type and the nominal destination to determine an alternate destination for the call type, extending the call to the outgoing exchange system to the surrogate destination. How to set up. 21. The method of claim 20, wherein the step of transmitting comprises sending from the initiating exchange system to an outgoing exchange system an indication identifying the call type specified in the common channel signaling message. 21. The method of claim 20, wherein the step of translating includes examining a table for an entry identified by the nominal destination and a designated call type that includes an indication of a surrogate destination. . 21. The method of claim 20, wherein the step of recognizing comprises: receiving an automatic number identification (ANI) number from a switching device connected to the entry exchange system, and generating a call in the form of a call in which the ANI number is assigned. A call establishment method for a specified call type, comprising testing whether it is listed by number. 21. The method of claim 20, wherein said designated call type is a facsimile call. 21. The method of claim 20, wherein the step of recognizing comprises: detecting at a local exchange that a call is a call of a designated type, and signaling an indication of the call of the designated type to the entry exchange system. How to set up a call. 26. The method of claim 25, wherein the data identifying the designated call type includes the indication. Receiving a call from a fax station for a plurality of different fax facilities, and in response to the receipt, automatically sending each call to a fax facility. 29. The method of claim 27, comprising detecting a fax signal of the call in response to the reception, wherein the sending is performed in response to the detection. 28. The method of claim 27, wherein the receiving step recognizes that the call is from a fax station at an entry exchange station of a communication network establishing the call, sending a fax signal for the call to an entry exchange station of the network. And recognizing, at the departure exchange office, that the call with the fax number is directed to the plurality of other fax facilities. 30. The method of claim 29, wherein said first recognizing step includes translating an identity of said fax station into a fax layer of a service. 33. The method of claim 30, wherein the identity is a number identified by automatic number identification in a local switching system and transmitted to the entry switching center. 30. The method of claim 29, wherein the transmitting step includes transmitting the fax signal from the inbound exchange to the outbound exchange as part of a common channel signaling message. 30. The method of claim 29, wherein said second recognizing step includes translating said number into an indication as to whether said number is for a fax facility. 34. The method of claim 33, wherein the step of sending comprises translating the number into the fax facility number. Recognizing a special dialed call prefix indicating that a call exists from a facsimile station, in response to the recognition, setting a facsimile indicator in the data of a common channel signaling (CCS) message to the switching device, and the call Processing as a facsimile call at the switching device. 36. The method of claim 35, wherein the special dialed prefix includes a special common carrier code. 36. The method of claim 35, wherein the special dialed prefix comprises a non-numeric dialed indicator. Recognizing the facsimile call identifier in the signaling message from the customer facility, in response to the recognition, setting the facsimile indicator in the data of the common channel signaling (CCS) message to the switching device, and making the call at the switching device. A method of setting up a facsimile call that includes processing as a call. 39. The method of claim 38 comprising sending the signaling message over an integrated signaling line. 40. The method of claim 39, wherein said sending comprises sending the message over an integrated information network (ISDN). 36. The method of claim 35, wherein the processing step comprises: determining whether the call destination is not a facsimile station, responsive to the determination, translating the identity of the call destination to the identity of an associated facsimile station; In response, completing the call to the associated facsimile station. 42. The method of claim 41, including sending an indication of a received fax message to the call destination in response to the translation. 42. The method of claim 41, wherein the step of translating includes translating the identity of the called destination into an identity of a plurality of associated fax stations, and selecting one station of the plurality of fax stations according to weekdays or weeks. How to set up a fax call. 42. The method of claim 41, wherein the step of translating includes translating the identity of the called destination into an identity of a plurality of related facsimile stations, and selecting an available one of the plurality of related facsimile stations. How to set up a fax call. 36. The method of claim 35 including detecting if the destination of the call is busy, and automatically connecting the call to a storage and forward facility for future delivery. 36. The method of claim 35, following the processing step, in response to receiving dialed information from the caller of the call, automatically forwarding the call to a memory and forward facility that stores a facsimile message for later delivery without requiring the caller to redial. Setting up a facsimile call comprising the step of making a connection. 36. The fax call setup of claim 35 wherein the processing step includes detecting whether the call is an international call, and in response to the detecting, routing the call through a special transmission facility for sending a fax call. Way. 36. The method of claim 35, comprising, in response to the recognition, setting a good facility indicator in the data of the common channel signaling message, wherein the processing comprises: detecting whether the call is an international call, and the detecting In response, if the good facility indicator is set, routing the call through a selected special transmission facility. 49. The method of claim 48, wherein setting the good facility indicator comprises testing whether the facsimile station has a service layer requesting use of a good facility in an international call. Recognizing whether a call exists from a facsimile station, in response to the recognition, setting a facsimile indicator in a common channel signaling (CCS) message to a switching device, in response to receiving the message at the switching device, the call Checking whether or not to forward to this storage and forward system, and in response to the check, forwarding the call from the switching device to the storage and forward system. 51. The method of claim 50, wherein the checking step includes checking the state of the called destination to determine whether a call is going to a busy destination. 51. The method of claim 50, wherein the checking step includes checking the call destination data to determine whether the call is to be forwarded during the week or week. Recognizing whether a call exists from the facsimile station, in response to the recognition, setting the facsimile indicator in the data of the common channel signaling (CCS) message to the switching device, and treating the call as a facsimile call at the switching device. And in response to receiving the message, checking whether the call is to be forwarded to another fax line in response to receiving the message, and in response to the check, forwarding the call to the other fax line. A method for establishing a fax call comprising the step of forwarding. Extending a connection from the first facsimile station to the outgoing exchange of the telecommunications network, at the outgoing exchange, checking the storage and forward indicators in the data of the second facsimile station, the second facsimile station being on the call and the indicator being If set, extending the connection to the facsimile storage and forward facility, and immediately forwarding the facsimile message from the storage and forward facility to the second facsimile station. How to send a fax message. 55. The method of claim 54, wherein the second facsimile station is in a group of stations, and if all stations in the group are busy, the connection is extended to a storage and forward facility. Recognizing whether a call exists from the facsimile station, and in response to the acknowledgment, setting a facsimile indicator in a common channel signaling (CCS) message to the switching center device, the message having a first number identifying the facsimile station; A setting step having a second number identifying a destination, in response to receiving the message at the exchange device, translating from the second number to derive screen data, and in response to the translation, calling Comparing the screen data with the first number to determine whether it should extend from the switching device toward another switching device for call completion. Recognizing whether a call exists from a facsimile station, in response to the recognition, setting a facsimile indicator in the data of a common channel signaling (CCS) message to the switching device, and in response to receiving the CCS message, Detecting whether the call is an international call, and performing a translation from the destination number received in the CCS message to an associated facsimile destination number to extend the call from the switching device to a facsimile station associated with the destination number. How to set up a fax call. 39. The method of claim 38, wherein the processing step comprises: determining whether the called party is not a facsimile station, responsive to the determination, translating the identity of the called destination to the identity of an associated facsimile station; and In response, completing the call to the associated facsimile station. 59. The method of claim 58, including sending an indication of a received fax message to the call destination in response to the translation. 59. The method of claim 58, wherein the step of translating includes translating the identity of the called destination into an identity of a plurality of associated fax stations, and selecting one of the plurality of fax stations according to weekdays or days. How to set up a fax call. 59. The fax of claim 58, wherein the step of translating includes translating the identity of the called destination into an identity of a plurality of associated facsimile stations, and selecting an available one of the plurality of related facsimile stations. How to set up a call. 39. The method of claim 38 including detecting if the destination of the call is busy, and automatically connecting the call to a storage and forward facility for future delivery. 39. The method of claim 38, following the processing step, in response to receiving dialed information from the caller of the call, automatically forwarding the call to a memory and forward facility that stores a fax message for later delivery without the caller having to redial. Setting up a facsimile call comprising the step of making a connection. 39. The fax call setup of claim 38 wherein the processing step includes detecting whether the call is an international call, and in response to the detecting, routing the call through a special transmission facility for sending a fax call. Way. 39. The method of claim 38, comprising responsive to the recognition, setting a good facility indicator in the data of the common channel signaling message, wherein the processing comprises: detecting whether the call is an international call, and the detecting In response, if the good facility indicator is set, routing the call through a selected special transmission facility. 66. The method of claim 65 wherein the step of setting a good facility indicator comprises testing whether the facsimile station has a service layer requesting the use of a good facility in an international call.

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