MXPA98005135A - Call management services to telephone devices which are connected to a fixed wireless access subscriber unit - Google Patents

Abstract

One aspect of the invention provides for a method of providing call management services to a conventional wireline telephony device (or devices) which receive telephony services by means of a fixed wireless access subscriber unit. Such a subscriber unit (SU) includes a wireless transceiver for communicating with a wireless network and a telephone subscriber line interface which connects to a telephone subscriber line to which the telephony devices are connected. Such a subscriber unit is configured to carry out the following steps. Upon receipt of an incoming message (which typically occurs during call set up of an incoming call) subscriber unit evaluates whether call management services information is present, and if so searches the message, according to the wireless protocol for the CMS information and extracts the CMS information. The SU then interprets the received information, determines what information should be passed to the telephony devices to the SU and produces a message containing the relevant information which is then sent to the telephony devices via the telephone subscriber line. According to a preferred embodiment, the new message may contain information not present in the original incoming message. This new information is retrieved from a user selected directory stored within the SU. According to another embodiment of the invention the SU may contain a plurality of transceivers and a plurality of subscriber line interfaces wherein said subscriber unit can effectively act as a wireless key system.

Description

conventional wire line. These advantages include deployment speed, lower installation cost, and reduced maintenance of the outside plant. Terminals similar to conventional cellular phones can be used to provide fixed wireless access (FWA) as well as conventional mobile cellular telephony. However, in order to reduce costs it is advantageous to use terminals designed only for fixed wireless access. Cost savings can be achieved since such terminals do not require mobility (in the conventional cellular sense) and as a result can also be larger. To further reduce costs, a fixed wireless access terminal can use existing cellular networks to provide telephony service and therefore there is no need to deploy a separate FWA cellular system. Additionally, an FWA terminal can reuse the technology and components originally designed for conventional cellular service. The systems have been described for communicating a standard conventional wireline telephone to a radio transceiver in order to allow such a standard telephone (or other device) to use the cellular network to provide telephone service. Such a device interface to connect a cellular radio transceiver to a conventional telephone device is not new. For example, U.S. Patent No. 4,658,096, which names West and others as inventors, describes an interface facility for connecting a conventional telephone set to a cellular transceiver in such a way that the cellular network can provide telephone service to such a telephone set. This patent describes an interface that includes means for automatically determining when the user of the telephone device has finished dialing, since the concept for connecting a telephone to a cellular transceiver is known in the "radio correction" technique. The aforementioned West patent is known in the art, and has been cited many times in subsequent patents having to do with additional aspects of connecting a cellular transceiver to a telephone device. Such systems, which can be adapted to provide POTS service (simple ordinary telephone service), do not adequately support more advanced features. For example, conventional landline networks can provide call management services (hereinafter CMS), for example, Supply of Calling Number (CND), Message Waiting Indicator, Time of Day of Supply, Identification of the Calling Line (CLID), Dial-up Directory Number (DN), Reason for DN Absence, Reason for Redirection, Call Qualifier, Name of the Calling Party and Identity of the Calling Party in the Calling in Wait (CIDCW) by means of messages sent to a telephone unit. CLASSSM (trademark Bellcore) which is in accordance with GR-30-CORE (TR-NWT-000030), LSSGR: Voiceband Data Transmission Interface (Voiceband Data Transmission Interface) incorporated herein for reference, together with the documents cited) is a known format for sending such messages. By using this method, the central office switch, with the help of an appropriately configured subscriber line interface circuit, is capable of sending information to subscribers using some form of data modulation scheme. Of course, other types of protocols may be used and in this specification we will generally refer to these services as call management services. In addition, advanced cellular systems, for example, IS54B, April 1992, EIA / TIA Cellular Dual Mode Mobile Station - Base Station Compatibility Standard (EIA / TIA Cellular System Dual-Mode Mobile Station - Base Station Compatibility Standard) (incorporated herein by reference), also provides services / call management features. In this way, cell terminals suitably equipped with IS54B can receive and display information of call management services. However, wireless protocols are not compatible with terrestrial call management service protocols. In this way, there is a need to provide features of call management services to a standard telephone that is coupled, through an appropriate interface, to a wireless network. SUMMARY OF THE INVENTION One aspect of the invention provides a method of providing call management services to a conventional wireline telephone device (or devices) that receives telephone services by means of a fixed wireless access subscriber unit. Such a subscriber unit (SU) includes a wireless transceiver for communicating with a wireless network and a subscriber telephone line interface that is connected to a subscriber telephone line to which the telephone devices are connected. Such a subscriber unit is configured to carry out the following steps. After receipt of an incoming message (which typically occurs during the establishment of a call from an incoming call) the subscribing unit it evaluates if information of call management services is presented, and if so, it looks for the message, according to the wireless protocol for the CMS information, and extracts the information from CMS. The SU then interprets the information received, determines what information should be passed to the telephone devices for the SU and produces a message containing the relevant information that is then sent to the telephony devices through the subscriber telephone line. According to a preferred embodiment, the new message may contain information not present in the original incoming message. This new information is retrieved from a selected user directory, stored within the SU. According to another embodiment of the invention, the SU may contain a plurality of transceivers and a plurality of subscriber line interfaces wherein said subscriber unit may effectively act as a wireless key system. BRIEF DESCRIPTION OF THE DRAWINGS The present invention, together with the objects and additional advantages thereof, will be further understood from the following description of the exemplary embodiments with reference to the drawings in which: Figure 1 is a representation schematic that illustrates how a wireless communication network can provide information of call management services to conventional telephone sets according to a preferred embodiment of the present invention. Figure 2 is a block diagram showing the architecture of a subscriber unit according to a preferred embodiment of the invention. Figure 3 is a schematic representation of the message flow between the components of the subscriber unit. Figure 4 is a flow diagram illustrating the steps carried out by the baseband microcontroller according to a preferred embodiment of the present invention. Figure 5 is a flowchart representing the steps carried out by the voice frequency microcontroller according to a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED MODALITY The present invention will be described with respect to a preferred embodiment used in a fixed wireless access system. It should be appreciated by a person skilled in the art that the invention can also be used in other types of systems, for example, optical fiber, TV by cable, etc. which provide telephony services by some other means than a subscriber telephone line connected to a central office switch using the conventional two-wire analog subscriber telephone line interface. As an example, Figure 1 illustrates a communications network 1000, which in this example includes a wireless base station communicating with a medium 1100, which in this example is a suitable radio frequency interface (e.g., IS54B), with a unit Subscriber (SU) 1200. Subscriber unit 1200 includes a communication interface communicating with communication network 1000 through means 1100. In this example, the communication interface comprises a radio transceiver and an antenna 1215 for communication, through the use of IS54B protocols, with the base station 345. The subscriber unit 1200 also includes the terminal unit that includes a primary handset 1240 and a SLIC 1230 that are connected to the subscriber telephone line 1250 which is connected to the telephone 380. Additional telephone devices (not shown) can be connected to the lines 1250. The subscriber telephone line 1250 can include wiring inside a c construction, extension cables or a combination thereof.

Figure 1 also illustrates an example of the SU 1200 receiving a call from a telephone connected to the PSTN. In this example, a telephone 310 connects to a Central Office of PSTN 340 which in turn is coupled to an MSC 342 which is coupled to a BTS transmitting base station (in this example through a BCS 345) which transmits through your antenna 350. The subscriber unit 1200 is coupled to a conventional telephone device 380, which supports the characteristics of call management services. In operation, the central office 340 sends information of call management services to the MSC 342 about the telephone 310 when the telephone 310 attempts to place a call on a subscriber unit 1200. This information 320 is formatted according to the protocol of the junction line specific used to connect the PSTN 340 to the MSC 342. This information is translated from the protocol of the binding line to the IS54B protocol by the MSC 342. The information in the form of IS54B is then transmitted, as shown in 360 in the form of a "alert with information" message sent over the radio link from the base station to the subscriber unit after the end of the paging process. The SU 1200 receives the message coded by IS54B over the aerial inferia and then decodes said message to extract the information of desired call management services (for example, the number of the calling party). This decoding process is carried out by the baseband microcontroller 90 and is sent to the VF 180 microcontroller in an intermediate format (as described below). The VF microcontroller then performs several central office functions as described below in order to send a CLASS message 375 during the silent interval between the first call sound period and the second call sound period for the 380 telephone. The conventional telephone (but CLASS-enabled) 380 then receives and displays the information of call management services in the same way as if the telephone 380 was linked to a central office through a two-wire analog subscriber telephone line interface. conventional. In this way, the terminal has in fact recoded the information of call management services contained in the message sending protocol IS54B in a current CLASS message (for example, a format according to Bellcore GR-30-CORE) and then that CLASS message is sent to the extension telephone through the RJ-11 jack 230. A subscriber unit 1200 according to a preferred embodiment of the invention is shown in figure 2 wherein the communication interface comprises a radio block 10 and a baseband block 60, and the subscriber unit also comprises a voice frequency block 110. There are two interfaces between the baseband block 60 and voice frequency block 110. The first interface, called the PCM interface 175, comprises the transmission and reception signals of digitized voice frequency (PCM) pulse code modulation, whereas the second interface is a bi-directional serial communication interface 178. The radio block 10 and the baseband block 60 provide the conversion between the radio frequency and the digitized speech frequency signals. The baseband block 60 is also responsible for the handling of protocols associated with the RF link (e.g. IS54B) under the control of the voice frequency block 110.

Voice frequency block 110 includes a primary user interface that includes a display 120 to display, for example, a call-line ID, a numeric keypad 130, an alerter 150 that produces an audio alert (e.g. , call sound), an indicator that provides visual alerts (for example, a light indicator indicating, for example, that an extension is off-hook or has been received an incoming call), and a primary handset 140. The voice frequency block 110 also includes a secondary user interface that includes an RJ-11 230 jack that acts as an extension jack for standard analog telephone devices. Note that an additional data jack can be supported for a peripheral device, for example, a facsimile or modem device. A suitable CD power source is not shown. This may comprise a battery, or a suitable AC power adapter, or preferably a combination of the two where ordinary power is supplied from a main AC source with battery power as backup. The voice frequency microcontroller (VF) 180 controls call processing through the input from the baseband block 60, the primary communication switch 190, the numeric keypad 130, the VF 170 DSP, and the circuit subscriber line interface (SLIC) 210. The VF microcontroller controls the call processing through the control of the baseband block 60, the display 120, the alert 150, the DSP of VF 170, and the SLIC 210 The VF microcontroller includes a microprocessor and associated memory. The Mitsubishi M37510 is a suitable VF microcontroller.

The VF 180 microcontroller communicates with the VF 170 DSP through the use of a bi-directional serial communication interface. The VF 170 DSP basically provides the interface of the digitized voice frequency transmission and reception signals between two pulse code modulation (PCM) 160 and 200 encoder / decoders (CODEC) and the baseband PCM interface . The ADSP-2163 of Analog Devices is a suitable DSP. The PCM 160 CODEC provides a suitable analog-to-digital and digital-to-analog conversion between the primary handset 140 and the VF 170 DSP. Similarly, the PCM 200 CODEC provides a conversion from analog to digital and from digital to digital. suitable analog between the extension devices through the SLIC 210 and the DSP of VF 170. The SLIC 210, which for example can include a microcircuit of SLIC AM79R79 of Advanced Micro Devices, provides subscriber line interface features from central office to the extension devices connected to the RJ-11 230 jack, through the end and sound terminals. For example, the SLIC provides over-voltage protection, DC power (battery-powered), hybrid function (2-wire to 4-wire interface), call sound voltage, supervision (off-hook detection), transmission of hung status, etc. In operation, a communication signal is received both in the main antenna 20 and in the diversity antenna 25, where the signal is suitably filtered either by the RF duplexer 30 or the bandpass filter 27, respectively. The RF switch 35 determines which of the signals is downconverted by the receiver block 50 based on the appropriate diversity selection process. The selected signal is subverted to a suitable IF signal by the receiver block 50. The receiver block 50 also measures the strength of the received signal and sends a message to the RF demodulator and the baseband interface block 70 as to the indication of intensity of the received signal (RSSI) as known in the art. The RSSI is then sent to the baseband microcontroller 90. The baseband DSP 80 also determines the bit error ratio (BER) that is also advanced to the baseband microcontroller. The baseband microcontroller 90 is used to process the strata 1 to 3 of the communication protocol stack (e.g., IS54B), to handle the control of the RF radio block 10 and the baseband block 60, so as to to process the OA & M requirements and also perform some interface functions of user through commands received from the VF 180 microcontroller. These user interface functions, for example, include measurements of the received signal strength indication (RSSI) and the call progress tone generation / DTMF. Additionally, during the reception of an incoming call, the baseband microcontroller 90 decodes the message of IS54B "Alert With Information", extracts the management service information packets of relevant class (for example, part number of the calls) and advances these to the VF 180 microcontroller in a suitable intermediate message sending format which uses the VF 180 microcontroller to generate the identification packet of the CLASS calling line. The baseband microcontroller 90 decodes other messages from IS54B in a similar manner to provide information to other CLASS characteristics such as the message waiting notification. Upon receipt of an incoming call notification message from the baseband microcontroller 90, the voice frequency microcontroller 180 sends an alert signal to the alerter 150, activating the alerter to produce a ringing sound in the primary handset . The VF 180 microcontroller also passes information from control to the DSP of VF 170 which in turn is connected to the microcircuit of SLIC 210 which generates the ringing sound voltage of the subscriber telephone line through the voice extension jack 230. The VF 180 microcontroller controls the interface of user (for example, sound cadence), while the VF 170 DSP performs simple tasks based on the commands coming from the VF 180 microcontroller. As will be discussed in more detail, when the VF 180 microcontroller receives the packages of decoded call management service information from the baseband microcontroller 90, the VF 180 microcontroller converts this information to the format used by the extension telephone 380, for example, a message formatted by CLASS, which in this example, it is then modulated by frequency offset (FSK) by the VF 170 DSP to provide CLASS information to the extension device. This CLASS call line identification information is sent to the extension devices, preferably during the silence interval between the sound signals, first and second, according to GR-30-CORE. We will now see a more detailed example of how the SU 1200 applies the method described above, with reference to Figures 3, 4a, 4b, 4c, 5a and 5b. Figures 4a, 4b and 4c show the processing steps applied by the baseband microcontroller 90, while Figures 5a and 5b show the processing steps applied by the VF microcontroller. It should be appreciated by a person skilled in the art that these figures are for illustrative purposes only and that they do not attempt to cover all state transitions or actions carried out while receiving an incoming call in an IS54B environment. Also, this example only covers the situation where the incoming call is assigned to a digital traffic channel. A similar method is also used when the incoming call is assigned to an analog voice channel. Referring to Figures 4a, 4b and 4c, the baseband microcontroller 90 will start in the "Free" state 5100. Once a successful page is received from the network 5110, the baseband microcontroller 90 recognizes page 5120 and enter the status of "Wait Message" 5200. Once in the status of "Wait Message" 5200, the system will assign a traffic channel 5210 to the SU 1200, which will be tuned to the baseband microcontroller 90 5220 and then will move to the "Waiting for Order" status mode 5300. While in the "Waiting for Order" state 5300, the SU expects the network to send a traffic channel message digital advance, for example, "Information Alert" message 5310 (also shown as 360 in Figure 3). When the SU 1200 receives this "information alert" message, the baseband microcontroller 90 sends an "On Alert" message 5320 to the VF 180 microcontroller. The baseband microcontroller 90 then checks whether the message "Warning with Information "contains the optional information element of the" Calling Party Number "5330 about terminal 310. The optional information element is optional since it is typically only sent in the" alert with information "message. Yes, the user of the SU 1200 subscribes to the appropriate network services. For the purposes of this example, it is assumed that the optional information element is sent in the "Information Alert" message. If the "Calling Party Number" is not available, the baseband microcontroller 90 ends with the processing of the "alert with information" message and advances to the "Waiting for Response" status 5350. If available the "Calling Party Number", the baseband microcontroller 90 decodes and advances this information in an intermediate format to the VF 180 microcontroller in a "Calling Line ID" message 5340. In this mode, the 90-band microcontroller does not perform any function of special representation in the translation of the "Calling Party Number" information into the intermediate format for the VF 180 microcontroller. Rather, the baseband microcontroller searches for an incoming bitstream containing the number of the part that it calls, extracts the appropriate bits and then reformats the bits to a message oriented in bytes that is then advanced to the VF microcontroller. The responsibility of the VF 180 microcontroller is to provide the necessary translations in order to convert the "Calling Party Number" information into a valid CLASS message. The details of the intermediate message format and the rules applied to the translation of the "Calling Party Number" to CLASS (GR-30-CORE) will be described below in detail. The baseband microcontroller 90 sends an "on alert" message as long as it receives the "alert with information" message on the radio link. It will only send the "id of the calling line" message if the optional information element of the "Calling Party Number" is received. Referring to FIGS. 5a and 5b, the VF 180 microcontroller begins in its initial "Free" state 6100. The VF 180 microcontroller, upon receipt of the "On Alert" message 6110, advances to the "Alert" state 6120 The VF 180 microcontroller introduces the "Alert" state 6200 and initiates the normal call sound synchronization sequence that alerts the user of an incoming call (typically 2 seconds on, 4 seconds off) and starts a "CLASS Supply Synchronizer" 6210 to determine when send the CLASS encoded information to the RJ-11 interface. The "CLASS Supply Synchronizer" is set for the delay in terminating the first call sound signal plus 500 msega. The attempt is to send the sudden increase of the CLASS message to the extension device in the silence interval between the first, and second call sound signals, at least 500 msec after the call tone term according to GR-30- CORE. While in the "Alert" state, four different events may occur. The VF 180 microcontroller can receive a "Calling Line ID" message, the user can answer the call, the calling party on the other side can release the call which would result in a "End of Alert" message "or the" CLASS Supply Synchronizer "may end. The following describes how each event is handled. In this embodiment, the VF 180 microcontroller, after receiving the "calling line id" message 6220, decodes the information (e.g., the calling number and / or the private name or number from which calls, etc.) and displays this information on the primary display 120 as shown in 6230. This also saves this data for a subsequent translation to a CLASS coded message and its transmission to the extension devices if the Supply Synchronizer CLASS ends. If the user of the SU 1200 answers the 6240 call, the VF 180 microcontroller stops the CLASS Supply Synchronizer and goes to the "Talk" 6250 state. If the CLASS 6260 Supply Synchronizer ends, the VF 180 microcontroller verify that you have valid "Calling Line ID" data available 6270. If no data is available, no action is taken. If available data is found, the VF 180 microcontroller performs the encoding of the CLASS message and the assembly as discussed in more detail below and sends a multi-data message format message on the VF 170 DSP which modulates by FSK microcontroller data, sets the correct signal amplitude, all according to Bellcore GR-30-CORE, and then sends the message modulated by FSK to the SLIC for transmission to extension 6280. In this mode, the microcontroller VF 180 controls all aspects of the transmission except the current data modulation. That is, the VF 180 microcontroller specifies the amplitude of the modulated signal to be used in the transmission, which synchronization parameters to use, when to generate the signal as well as the appropriate coding of the information that includes the checksums. Finally, if the VF 180 microcontroller receives a "End of Alert" message 6290, this is an indication that the call has been released. The VF 180 microcontroller then stops alerting the user and goes back to the Free 6300 state.

It should be noted that if the SU 1200 is in the "Conversation" task, a "Flashing with Information" message may be received if the user of the SU 1200 is a call waiting subscriber. As established, the baseband microcontroller 90 is responsible for the processing of layers 1 to 3 of IS54B. The messages of IS54B, for example of "alert with information", are sent in a format packed in bits. When the message "information alert" is translated from IS54B to the intermediate format, the baseband microcontroller 90 extracts the relevant bits from the information bit stream of the "calling party number" and redirects them towards a protocol oriented to bytes suitable for the VF 180 microcontroller for its processing. The baseband microcontroller 90 advances the following pieces of information (sent in the field of "number of the calling party "of the" alert with information "message as described in the specification of IS54B): Bits Selection Indicators Bits Indicators of Presentation Number Type Identification of the Numbering Plan Character (s) Notice that there may be two cases of "calling party number" in the "information alert" message in which case the baseband microcontroller 90 would send two information devices as specified above, and it should also be appreciated by a person skilled in the art that could be received. a similar message when the SU 1200 sends an "intermittent light with information" message to implement features such as CIDC for example, the above parameters are encoded as follows (as described in specification IS54B).

The Selection Indicator bits (SI bits) are defined as: Code Description 00 User-proportion to d, not selected 01 User-provided, verified and passed 10 User-provided, verified and failed 11 Red-provides os Presentation Indicator bits (PI bits) such as: Code Description 00 Allowed presentation 01 Restricted presentation 10 Number not available 11 Reserved The number type bits are defined as Code Description 000 Not known 001 International number 010 National number 011 Network-specific number 100 Subscriber number 101 Reserved 110 Abbreviated number 111 Reserved for extension The Identification Numbers of the Numbering Plan are defined as: When the VF 180 microcontroller receives the "Calling Line ID" message from the baseband microcontroller 90, it decodes and illustrates the information provided by the IS54B in appropriate CLASS information. This CLASS message includes a time parameter (which obtains the SU 1200 from its internal clock (not shown)), whether it is the DN (DDN) that can be dialed from the calling line or the DN Absence Ratio (for example, "Private Number" or "Out of Area"), and the name parameter if the name information about the cellular infrastructure is sent or a preferred incoming name comparison occurred (explained below). The VF 180 microcontroller encodes the CLASS message by using the "multiple data" message sending format, specifically the "call establishment" message, and includes the appropriate fields as set forth above (eg, Time, DDN, Name, DN Absence Ratio) . These parameters are defined in GR-30-CORE or the documents cited here. In the preferred mode, the following rules are applied by the VF microcontroller to determine what information to send in the CLASS encoded message (GR-30-CORE). Note that in the preferred embodiment, the VF microcontroller does not process the SI bits, the Number Type bits or the Identification bits of the Numbering Plan. The VF 180 microcontroller interprets the PI bits as follows: If "the presentation is allowed", it interprets the rest of the data (for example, the characters) as specified below. If "presentation is restricted", it sends a CLASS call set-up message to the coded extensions as Absence ratio = Private Number, Time = Current Local Establishment Time / Date (not DDN, or Name, etc.). If the "number is not available", send a CLASS setup message to the extensions coded as Reason, of Absence = Out of Area, Time = Time / Date of Current Local Establishment (not DDN, or Name, etc.). If you "reserve the presentation" ignore any additional information in the remaining fields. It does not send any CLASS information to the extensions. The CLASS message sending protocol provides well-defined fields for the identification of the calling line such as the Supply of the Calling Number (CND), the Time of Day, the Calling Line Identification (CLID), the Number of Marking Directory (DN), Reason or Absence of DN, Reason for Redirection, Call Qualifier and Name of the Calling Party. However, the IS54B does not provide such unique qualifiers. Instead, the IS54B provides the SI, PI, Type of Number and Identification of the Number Plan and "characters" bits. The characters can be digits, for example, the directory number (DN) of the calling party or possibly a name encoded by ASCII, for example. The VF 180 microcontroller must, therefore, several rules to the "character" information to determine what to send to the extension devices. There are essentially three cases to consider: 0, 1 and 2 cases of "calling party number". Case 1: Zero cases of information are received from "number of the calling party". Discards all information and does not send CLASS information to extension devices. Case 2: A case of "calling party number" information is received. Examine the PI bits and handle them as specified above. If "presentation is allowed" the PI bits continue. If all the characters are "digits" (0,1, ..., 9), treat the information as DDN and carry out the preferred name comparison (described below). If you pass the preferred name comparison, sends a CLASS call set-up message with DDN = characters (digits) received, Name = issue of comparison of preferred names and Time = Time / Date of Current Local Settlement. If the previous test fails, treat the information as "Name", send a CLASS message with Name = characters received and Time = Time / Date of Current Local Establishment (no DDN or Reason for Absence).

Case 3: Two cases of "calling party number" information are received. Examine the PI bits and handle them as specified above.

If "presentation is allowed" the PI bits continue. If all the first instance characters are "digits" (0,1, ..., 9), treat the information as DDN, the second instance will automatically be treated as "Name". It performs an incoming preferred name comparison and if the name comparison passes, it replaces instance 2 with the preferred name. Send a CLASS message with DDN = characters (digits) received from instance 1, Name = instance 2 (or issue of the preferred name comparison) and Time = Time / Date of Current Local Establishment. If the previous test fails, that is, the first instance is not just "digits", it marks the first instance as Name, then it verifies the second instance. If all the characters of the second instance are "digits" (0,1, ..., 9), treat the second instance as DDN. It performs a comparison of preferred incoming names of the second instance and if the name comparison passes, it replaces instance 1 with the preferred name. Send a CLASS message with DDN = characters (digits) received from instance 2, Name = instance 1 (or issue of the preferred name comparison) and Time = Time / Current Local Establishment Date.

If the previous test fails, that is, the second instance is not just "digits", it discards the second instance. Send a CLASS message with Name = instance 1 and Time = Time / Current Local Establishment Date (no DDN or Absence Reason). In order to send this CLASS message to the extension devices, the VF 180 microcontroller codes each parameter (DDN, Time, Name, Absence Reason) including the verification lengths and totals. Additionally, the VF microcontroller formats the message to provide appropriate conditioning as specified in GR-30-CORE, for example, the channel dimension and the mark signal. The resulting emission of the modulator is presented in Figure 3. The resulting data is then sent to the VF 170 DSP where the stream of the FSK message is transmitted in the silence interval between the first and second call sound sequence, the which applies the SLIC to the telephone subscriber line. In this context, the Fixed Wireless Telephone can be observed as the Controlled Switching System of the Stored Program (SCPS) and the extension telephone as the Client Premises Equipment (CPE) since the function of sending the CLASS messages of the central office has moved effectively on the Subscriber unit. Preferably, the subscriber unit 1200 has local characteristics to adapt the terminal to the user. For example, the primary interface of the SU 1200 includes several custom memory dialing keys and provides the user with the ability to program a custom directory of directory (DN) numbers and names associated with each DN. The name is programmed by the user of the SU 1200 and can be any name chosen by the user, that is, it is the preferred name for the called part of the associated DN. This name is presented to the user (through the display screen 120) when the user of the SU 1200 establishes a call from the directory or from the memory marker. Many wireless networks, which supply the DN of the calling party, do not provide the Name of the calling party. To improve the utility of this unit, the VF 180 microcontroller preferably performs an incoming name comparison of the supplied DN (if available). The VF microcontroller does this by comparing the incoming DN (sent in the "alert with information" message of the US54B) with each DN in the directory and the memory keys until either an identical comparison is found or all the tickets have been compared and rejected. If a comparison is made between the calling party number and an incoming directory number or the memory dialer number, the VF 180 microcontroller uses the associated name of the comparison entry as the "preferred" name to be displayed locally. (on display screen 120) and sends them as a "Name" parameter in the CLASS message addressed to the extension. This preferred name will replace any name that is sent in the "alert with information" message or add a name when none is sent. It should be noted that other components and characteristics of the SU may be included but have not been described. For example, according to a preferred embodiment, the hardware of the SU also includes the ability to reverse call sound control, open-circuit control of ringing sound, hanging and hanging hook capacity, generation capability and detection of multiple dual tone frequency (DTMF) as well as some forms of data modulation / demodulation. It will be appreciated by a person skilled in the art that various modifications could be made to the previous embodiment. The preferred mode uses two microcontrollers, one to process layers 1 to 3 of the IS54B and one to control the section e VF. It is possible to combine both processors and carry out all the tasks in the controller. There is also no need for the SU 1200 to be a combined handset and SLIC. The invention could also be implemented in a system that does not provide any primary user interface (eg, without a local handset), that is, a box that is provided wireless only to SLIC access. In such a system, the user must attach an external telephone device (to the SLIC) to obtain telephone service. The preferred embodiment describes the method for converting IS54B into CLASS (GR-30-CORE). In general, similar methods could be used to convert other radio technologies (eg, IS95, ...) or other access technologies (eg, cable connection to the PSTN instead of wireless). Similarly, the sending of CLASS messages could be replaced with other forms of CMS provisioning to double-wire analog subscriber lines using things such as tone signaling, modulation techniques, and reverse or open tone interval switching signaling. call. For such systems the following capabilities may be required, for example, open-circuit control of call sound, hanging transmission capacity and off-hook, generation capacity and dual tone multiple frequency detection (DTMF) as well as some forms of data modulation / demodulation. Additionally, although the identification of the CLASS calling line has been described above, other CLASS characteristics may be implemented, for example, the use of the message waiting signaling of the IS54B (contained in the "station control" messages). mobile "and" flashing light with information ") to provide a CLASS waiting message to the extension devices. In addition, the preferred embodiment uses the multi-data message format for supplying Call Set-up information. This could be implemented, for

Claims (32)

1. NOVELTY OF THE INVENTION Having described the present invention, it is considered as a novelty and therefore the property described in the following claims is claimed as property. A method for providing call management services to a subscriber telephone line coupled to a fixed wireless access subscriber unit, said subscriber unit comprising a controller, at least one wireless receiver for communicating with a wireless network according to a wireless protocol and at least one subscriber telephone line interface for coupling to at least one subscriber telephone line, said method comprising the steps of: a) receiving a message by said receiver containing call management services (CMS) information in accordance with said wireless protocol; b) translate said CMS information into a format recognizable by a telephone device coupled to said telephone subscriber line; and c) sending a signal including said translated CMS information to said subscriber telephone line. The method according to claim 1, characterized in that step a) further comprises the steps of: receiving a call set-up message; and evaluate that message of establishment of call regarding the presence of CMS information. The method according to claim 1, characterized in that step b) further comprises the steps of: extracting said CMS information from said received message; interpret said CMS information; and coding said information in a new message in said format. The method according to claim 3, characterized in that said received message includes at least one number field of the calling party, said step of interpretation comprising the steps of evaluating the number of number fields of the calling party and the content from each field of the calling party and determine the identification information by coding. The method according to claim 4, characterized in that said subscriber unit stores user selected information to be displayed for the preselected calling parties and wherein said determination of the identification information to be encoded includes the selection of the selected user information by being encrypted. when the content of a field of the calling party corresponds to a preselected calling party. 6. The method according to claim 1, characterized in that step c) comprises the modulation by FSK of a signal sent to said subscriber telephone line with said CMS information. The method according to claim 5, characterized in that said subscriber unit sends a signal to said subscriber telephone line that includes sudden increases of sound, first and second, when said message is received and wherein stage c) comprises FSK modulation of said signal with said CMS information between said sudden, first and second sound increases. 8. A method for providing call management services to a subscriber telephone line coupled to a subscriber unit, said subscriber unit comprising a controller, at least one communications infer to communicate with a communication network and at least one telephone line infer subscriber, said method comprising the steps of: a) receiving a message containing information encoded by said communication inferior from said communication network; b) translating said encoded information into a format recognizable by a telephone device coupled to said telephone subscriber line; and c) sending a signal including said coded information translated to said line Subscriber telephone The method according to claim 8, characterized in that step b) further comprises the steps of: extracting said CMS information from said received message; interpret said CMS information; and coding said information in a new message in said document. The method according to claim 9, characterized in that said subscriber unit stores selected user information to be displayed for the preselected calling parties and wherein said interpreting step includes the evaluation of said CMS information to determine the calling party and select the user selected information to be coded when the content of a field of the calling party corresponds to a preselected calling party. 11. A wireless subscriber unit for communicating with a wireless network comprising: at least one telephone interface for connecting at least one standard telephone device; at least one transceiver for establishing a communication link with said wireless network; and a controller for controlling said subscriber unit, said controller comprising: means for decoding a wireless message containing encoded information received by said transceiver for the purpose of extract said coded information; means for encoding said information into a new message recognizable by said at least one standard telephone device; and means for sending said new message to said at least one standard telephone device through at least one telephone interface. 12. A wireless subscriber unit for communicating with a wireless network comprising: at least one telephone interface for connecting at least one standard telephone device; at least one transceiver for establishing a communication link with said wireless network; a controller for extracting information from call management services (CMS) from a wireless message received by said transceiver and for encoding said information in a new message recognizable by said at least one standard telephone device; and a signal processor for sending said new message to said at least one standard telephone device through at least one telephone interface. 13. A subscriber unit according to claim 12, characterized in that said controller comprises a first controller that extracts said CMS information; a second controller for encoding said information in said new message; and said signal processor comprises a DSP to modulate by FSK the signals applied to said subscriber telephone line. 14. A subscriber unit according to claim 12, further characterized in that it comprises a user definable directory for storing caller information entered by the user corresponding to the selected caller parts and wherein said controller includes said party information. calling stored in said encoded message for messages received from said calling parties selected by the user. 15. A subscriber unit comprising: at least one wireless transceiver; a subscriber line interface circuit (SLIC); at least one jack that couples a subscriber telephone line to said SLIC; a controller adapted to carry out the method according to claim 1. 16. A subscriber unit comprising: at least one wireless transceiver; a subscriber line interface circuit (SLIC); at least one jack that couples a subscriber telephone line to said SLIC; a controller adapted to carry out the method according to claim 2. 17. A subscriber unit comprising: at least one wireless transceiver; an interface circuit subscriber line (SLIC); at least one jack that couples a subscriber telephone line to said SLIC; a controller adapted to carry out the method according to claim 4. 18. A subscriber unit comprising: at least one wireless transceiver; a subscriber line interface circuit (SLIC); at least one jack that couples a subscriber telephone line to said SLIC; a controller adapted to carry out the method according to claim 5. 19. A subscriber unit comprising: at least one wireless transceiver; a subscriber line interface circuit (SLIC); at least one jack that couples a subscriber telephone line to said SLIC; a controller adapted to carry out the method according to claim 7. 20. A subscriber unit comprising: at least one communication interface for communicating with a communication network through a suitable means; a subscriber line interface circuit (SLIC); at least one jack that couples a subscriber telephone line to said SLIC; a controller adapted to carry out the method according to claim 8. 21. A method for providing call management services to a coupled telephone unit to a fixed wireless access terminal, said terminal comprising a controller, a wireless receiver and a coupling jack for coupling to said telephone unit, said methods comprising the steps of: receiving a wireless message containing information encoded by said telephone receiver. FWA from a wireless network; decoding said wireless message to extract said encoded information; translate said information into a format recognizable by said telephone unit; sending said new message to said telephone unit through said coupling jack. 22. A method for providing call management services to a telephone unit coupled to a fixed wireless access terminal, said terminal comprising a controller, a wireless receiver and an RJ-11 jack for coupling to said telephone unit, said method comprising the steps of : receiving a coded message on the aerial inferio by means of said FWA terminal receiver that contains information of call management services according to said air interface protocol; decoding said message to extract the information of the desired call management system by said controller; encoding said call management service information in a CLASS message by said controller; submit said CLASS message to said extension telephone through said RJ-11 jack by said controller. 23. A wireless subscriber unit for communicating with a wireless network comprising: at least one telephone interface for connecting at least one standard telephone device; at least one transceiver for establishing a communication link with said wireless network; and a controller for controlling said subscriber unit, said controller comprising: means for decoding a wireless message containing encoded information received by said transceiver in order to extract said encoded information; means for encoding said information into a new message recognizable by said at least one standard telephone device; and means for sending said new message to said at least one standard telephone device through at least one telephone interface. The method according to claim 3, characterized in that the new message further comprises information obtained internally from said subscriber unit. The method according to claim 24, characterized in that said information obtained internally from said subscriber unit comprises a time parameter. 26. The method according to claim 24, characterized in that said received message includes at least one number field of the calling party, said step of interpretation comprising the steps of evaluating the number of number fields of the calling party and the content of each field of the calling party, and the determination of identification information by code. The method according to claim 26, characterized in that said information obtained internally from said subscriber unit comprises user selected information to be displayed for the preselected parts that call and wherein said determination of the identification information to be encoded includes the selection of the user selected information by being coded when the content of a field of the calling party corresponds to a preselected calling party. 28. The method according to claim 8, characterized in that said new message further comprises information obtained internally from said subscriber unit. 29. The method according to claim 28, characterized in that said information obtained internally from said subscriber unit comprises a time parameter. The method according to claim 28, characterized in that said information obtained internally from said subscriber unit comprises selected user information stored by unfolding for the preselected parties that call and where said interpretation stage includes the evaluation of said information. of CMS to determine the calling party and select the user selected information by being coded when the content of a calling party field corresponds to a preselected calling party. 31. A subscriber unit according to claim 14, characterized in that it further comprises an internal clock or synchronization apparatus from which a time parameter to be included in said new message is obtained. 32. A subscriber unit comprising: at least one communication interface for communicating with a communication network through an appropriate means; a subscriber line interface circuit (SLIC); at least one jack that connects a subscriber telephone line to said SLIC; a controller adapted to carry out the method of any of claims 24-30. SUMMARY One aspect of the invention provides a method for providing call management services to a conventional wireline telephone device (or devices) receiving telephony services by means of a fixed wireless access subscriber unit. Such a subscriber unit (SU) includes a wireless transceiver to communicate with a wireless network and a subscriber line telephone line that connects to a subscriber telephone line to which the telephone devices are connected. Such a subscriber unit is configured to carry out the following steps. Upon receipt of an incoming message (which typically occurs during the establishment of a call, of an incoming call) the subscriber unit evaluates whether or not call management services information is presented, and if so, looks for the message, from according to the wireless protocol for the CMS information, and extracts the CMS information. The SU then interprets the information received, determines what information should be passed to the telephone devices for the SU and produces a message containing the relevant information that is then sent to the telephone devices through the subscriber telephone line. According to a preferred embodiment, the new message may contain information not present in the original incoming message. This new information is retrieved from a selected user directory stored within the SU. According to another embodiment of the invention, the SU may contain a plurality of transceivers and a plurality of subscriber line interfaces wherein said subscriber unit may effectively act as a wireless key system.