JP5283217B2 - IP button telephone equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an IP key telephone set wherein it is possible to change or reset only a predetermined portion of software configured on the same CPU of a substrate and restart the portion. <P>SOLUTION: In a CF memory 15, an OS, an application 1 (body software), and an application 2 (CEU software) of an SGC are stored separately. In specification change in IP external line at a convenience of an IP telephone carrier side, the operation of the application 1 is not interrupted but only the application 2 is changed to an application 2' corresponding to the specification change. In occurrence of a failure in equipment or a device on the IP telephone carrier side, only the application 2 is reset and restarted after the finish of maintenance. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an IP button telephone device, and more particularly, only a specific part of software configured on a main CPU (hereinafter referred to as CCU) of an IP button telephone device can be changed or reset to be restarted. It relates to the IP button telephone device.

As a document disclosing a conventional program update method for a button telephone device, for example, there is Patent Document 1 below. In Patent Document 1, a file acquisition unit receives and stores an update file from a maintenance terminal, and the file acquisition unit stores the update file when an operation monitoring unit that monitors the operation status of the device detects interruption of the operation of the device. It is disclosed that program update processing is executed using the updated file.
JP-A-2005-260460

  In the above-mentioned conventional key telephone apparatus, when it is necessary to change or reset only a specific part of the software configured on the same CPU of the board, it is necessary to reset and change only that specific part. Or because there was no mechanism that could be reset and restarted, the entire software of the same CPU on the board had to be changed or reset to restart.

  As a result, while the software is being changed or reset and restarted, functions that operate in parts that are not changed or functions that operate in parts that are not reset (for example, extension calls and legacy external calls) are also used. There was a problem that it was impossible to do.

  The object of the present invention is not changed when it is necessary to solve the above-mentioned problems of the prior art and to change or reset only a specific part of the software configured on the same CPU of the board and restart. Alternatively, the function of the part that is not reset and restarted is operable, and an IP button telephone device is provided in which only a specific part of the software can be changed or reset and restarted.

In order to achieve the above-described object, the present invention provides a main control unit (main control unit) that separately stores the main body software of the IP button telephone apparatus and the software of the SGC in an IP button telephone apparatus provided with SGC (SIP gateway controller) software. 1) a first memory (15), and a second memory of the main control unit (1) that is loaded and activated by the main body software and SGC software stored in the first memory (15) (12) and a maintenance computer (95) having functions such as writing, deleting, and command input of the SGC software, and the IP telephone carrier side communicating with the IP button telephone apparatus via the IP network If there is a change in the specifications of the IP external line due to circumstances, the SGC software of the first memory (15) The software is changed to new software, and the SGC software in the second memory (12) is blocked by the command entered in the maintenance computer (95), so that the existing call is maintained, and the existing call is When the talk ends, it is unloaded, and the new software of the SGC is loaded from the first memory into the second memory and activated, thereby changing the function of the SGC to the IP external line specification on the IP telephone carrier side. There is a feature in the point made to do.

In addition, in an IP button telephone apparatus provided with SGC (SIP gateway controller) software, a first memory (15) of the main control unit (1) for separately storing the main software of the IP button telephone apparatus and the software of the SGC; The main software stored in the first memory (15) and the SGC software are loaded and started, the second memory (12) of the main control unit (1), and the writing of the SGC software , A maintenance computer (95) having functions such as deletion, command input, etc., the main software of the customer edge unit (hereinafter referred to as “CEU”) of the IP button telephone device, and the SGC software of the CEU (hereinafter referred to as “CEU use”). CEU (3) that stores software separately) A third memory (33); a fourth memory (32) of the CEU (3) that is loaded and activated by the main body software and the CEU software stored in the third memory (33); And the CEU software in the first memory (15) is updated when there is a change in the specification of the IP external line due to the convenience of the IP telephone carrier that communicates with the IP button telephone apparatus via the IP network. The software is changed, the CEU software loaded in the fourth memory (32) is blocked by the maintenance computer (95), unloaded after the blocking, and the new CEU software is loaded into the first memory Loaded from the memory (15) into the third memory (33) and then loaded from the third memory (33) into the fourth memory (32) Is, there are other features in that the so that the activated.

  The SGC (SIP gateway controller) means that WAN-LAN conversion is performed on the SIP message and the audio / video packet in the software block for controlling the IP outside line.

  According to the present invention, it is possible to change the function of the SGC to a function conforming to the IP external line specification on the IP telephone carrier side in a state where functions other than the SGC are usable. Alternatively, the SGC function can be reset and restarted with functions other than the SGC enabled. For this reason, functions other than SGC, such as an extension telephone or a legacy external line call, can be used even while the SGC function is being changed or reset, and the convenience of the IP button telephone apparatus can be improved.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the main part of an IP button telephone apparatus 100 to which the present invention is applied. Here, the configuration unnecessary for the description of the present invention is omitted.

  This IP button telephone device 100 can be used only for legacy (conventional / old) external lines (TDM external lines) such as analog lines, number display contract lines, network number dial-in lines, analog private lines, digital private lines and ISDN lines as external lines. First, it accommodates VoIP lines and NGN (next generation network) lines (IP external lines). It also accommodates not only legacy analog terminals such as general analog terminals, digital button telephones, ISDN terminals, hotel phones, and fax machines (TDM extension telephones) as extension telephones, but also IP terminals such as IP telephones (IP extension telephones). And call control between each extension telephone.

  In the IP button telephone apparatus 100, a main control unit (CCU: Central Control Unit) 1 is mounted on one board, and performs basic operation control (main control) of the entire IP button telephone apparatus according to main control software. In addition, the CCU 1 performs call processing control between an IP external line, an IP extension, a TDM external line, and a TDM extension (including IP extensions and TDM extensions) to enable various calls. The main control software can interpret SIP, which is an IP external line protocol, so that IP external lines can be accommodated and IP external lines can be made and received.

  A TDM main control unit (TCCU: Tdm Central Control Unit) 2 is also mounted on a single board, and transmits / receives control information to / from the CCU 1 to perform TDM system main control. This control includes, for example, control of various dedicated interfaces (TDM control units) of the TDM external line and the TDM internal line.

  A customer edge unit (CEU) 3 has a function as a high-speed broadband router that performs IP communication in which voice information and control information are multiplexed. When a voice conversion unit (VCU: Voice Conversion Unit) 4 is transferred to an extension telephone having a different voice media capability, the voice packet is matched with the media capability selected for the call and the media capability of the extension phone. Convert from high sound quality to standard sound quality or vice versa. Also, a high-quality or standard-quality voice packet is sent to an extension telephone that holds a high-quality sound and a standard sound quality and does not have a hold sound at the time of holding according to the media capability during a call.

  The TCCU 2 includes legacy terminals (TDM extension telephones) such as a fax terminal 81, a hotel phone terminal 82, a digital key telephone 83, and a single telephone 84, and legacy external lines such as general external lines, ISDN net lines, analog dedicated lines, and digital dedicated lines. (TDM external line) can be connected via various dedicated interfaces (TDM control unit) and TDM bus 5 for TDM communication. The TDM bus 5 includes a D channel that transmits and receives control information and a B channel that transmits and receives audio information.

  CCU 1 and TCCU 2 are connected by two LAN cables, a LAN cable 8 for transmitting voice information and a LAN cable 9 for transmitting control information. CCU1, CEU3 and VCU4 are also connected by a LAN cable. Further, a maintenance computer 95 is connected to the CCU 1 via the LAN cable 10 and a switching hub (HUB) 7 is connected via the LAN cable 6. The HUB 7 is connected to an IP key telephone 91 and an audio conference device 92 via a dedicated interface, and a wireless access point (AP) accommodates an IP cordless phone 93 and further includes a computer 94 on which a softphone application is installed. Connected.

  The CCU 1 includes a CPU 11, a DDR memory (RAM) 12, a flash memory 13, a dedicated chip 14 specialized for packet transfer control, a removable compact flash (registered trademark) (CF) memory 15, and a layer 2 (L2) switch 16. Is the main component. The dedicated chip 14 is a custom LSI that functions as a packet transfer circuit.

  When CCU1 is powered on or reset (POWERON / RESET), first, the boot loader (software) in the flash memory 13 operates to load the OS stored in the file system of the CF memory 15 into the DDR memory 12. to start. Next, the OS loads the CF memory 15 application (main control software) into the DDR memory 12 and starts it. As a result, the main control software operates.

  Further, the CF memory 15 has a database (DB) of system data (setting data) of the IP button telephone device, which is taken out as necessary and set as a variable on the DDR memory 12. Thereby, the IP button telephone apparatus operates according to the system data. The system data can be set in the CF memory 15 by the maintenance computer 95.

  The TCCU 2 includes a CPU 21, a DDR memory 22, a flash memory 23, a phi (PHY) 24, a highway switch 25 that controls the B channel of the TDM bus 5, a Dch control signal communication chip 26 that controls the D channel, and a DSP (Digital Signal Processor). 27 is a main component. The PHY 24 is an LSI that controls the physical layer of Ethernet (registered trademark) (not shown).

  The CEU 3 includes a CPU 31, a DDR memory 32, a flash memory 33, a dedicated chip 34 specialized for packet transfer control, and an L2SW 35 as main components. The dedicated chip 34 is the same as the dedicated chip 14. The VCU 4 includes a CPU 41, a DDR memory 42, a flash memory 43, an L2SW 44, and a DSP 45 as main components. The DSP 45 converts voice packets from high sound quality to standard sound quality. The reverse conversion is also performed.

  The IP button telephone apparatus 100 of the above embodiment is configured as a multi-CPU system in which the CPUs 11, 21, 31, 41 are distributedly arranged in each of the CCU1, TCCU2, CEU3, and VCU4, and these CPUs are linked to perform overall control. Therefore, load distribution can be realized. Various dedicated interfaces (TDM control units) also include a CPU. Further, since the packet transfer is controlled by the hardware of the dedicated chips 14 and 34 mounted on the CCU 1 and CEU 3, the processing load on the CPU is reduced.

  In the IP button telephone apparatus 100, for example, when a single phone 84 is made / received via a TDM external line, the TCCU 2 performs control of the TDM system by transmitting / receiving control information via the CCU 1 and the LAN cable 9, and the TDM extension and TDM. Enables transmission and reception of voice information between external lines. The single telephone 84 and the TCCU 2 transmit / receive the PCM-converted voice information via the TDM bus 5 by time division multiplexing communication.

  Further, for example, when the single telephone 84 makes and receives calls via the IP external line, the PCM converted voice signal is transmitted and received on the TDM bus 5 by time division multiplexing communication between the single telephone 84 and the TCCU 2. Voice packets are exchanged between the TCCU 2 and the CCU 1 via the LAN cable 8. The DSP 27 of TCCU2 is used for mutual compatibility between TDM and packets of voice information. Control information between the CCU 1 and the TCCU 2 is transmitted / received via the LAN cable 9. In CEU3, it is connected to the IP external line via L2SW35, and CCU1 and CEU3 exchange voice packets using their dedicated chips 14 and 34, respectively.

  Further, for example, when the IP key telephone 91 makes / receives a call via the TDM external line, the route of the TDM bus 5, TCCU2, CCU1 and HUB7 is established. Further, when the IP key telephone 91 makes / receives a call via an IP external line, the paths of CEU3, CCU1 and HUB7 are established.

  The IP extension telephone accommodated in the IP key telephone apparatus 100 includes an extension telephone with a media capability of only standard voice, an extension phone with two voice media capabilities of standard sound quality and high sound quality, and voice and video with only standard sound quality. Extension phone with media capability, extension phone with two audio and video media capabilities of standard sound quality and high sound quality, and extension phone (IP-KT: Internet Protocol) with conference call function with 3 parties including itself Key telephones), extension telephones (A-KT: Advanced Key Telephone) with video input (CCD) / output (LCD) and browser functions, and button telephone functions as applications on PCs connected to cameras, microphones and speakers There are a wide variety of extension telephones such as software key telephones.

  IP-KT has standard and high-quality audio media capabilities, but does not have video media capabilities. A-KT has media capabilities for standard and high-quality audio, MPEG4 Encoder / Decoder (Simple Profile Level 0 to 3), QVGA (320x240), QCIF (176x144) video size, up to 15 fps frame With media capabilities for rate video. The soft phone has media capabilities for standard and high-quality audio, MPEG4 Encoder / Decoder (Simple Profile Level 0 to 3), VGA (640x480), QVGA (320x240), CIF (352x288), QCIF (176x144) ) With a video capacity of up to 30fps frame rate.

  The IP button telephone apparatus 100 of FIG. 1 has a mode in which CEU 3 is externally attached, but there is also a mode in which CCU 1 has its function without externally attaching CEU 3. The first embodiment (FIG. 2) described below is for the IP button telephone apparatus of the latter mode, and the second embodiment (FIG. 3) is for the former IP button telephone apparatus.

  The software partial update and partial reset method of the IP button telephone device according to the embodiment of the present invention will be described below. FIG. 2 is a functional block diagram showing the main part of the first embodiment of the present invention.

  In the IP button telephone device, when the CCU 1 is powered on or reset, first, the boot loader (software) in the flash memory 13 operates, and the OS stored in the file system of the CF memory 15 is loaded into the DDR memory 12. Is activated. Next, this OS loads the application (main body software) in the CF memory 15 into the DDR memory 12 and starts it. Thereby, the main body software operates. The file system of the CF memory 15 has a database of setting data (system data) of the IP button telephone device. The setting data is retrieved as necessary, set as a variable on the DDR memory 12, and the IP button The telephone device operates according to this setting. In order to set the system data, commands and parameters can be input from the maintenance computer 95 connected to the LAN 10 and set in the CCU 1.

  In the present embodiment, as shown in FIG. 2, the OS, the application 1 (main body software), and the SGC application 2 (CEU software) are stored in the CF memory 15. That is, applications 1 and 2 are stored separately. This SGC application 2 can be written into the CF memory 15 by FTP (file transfer protocol) from the maintenance computer 95. With the operation of the application 2, the IP button telephone device can multiplex voice data and control data and perform IP communication via an external IP network.

  Now, if there is a change in the specification of the IP external line due to the convenience of the IP telephone carrier connected to the IP network, it is necessary to change the application 2 to an application corresponding to the specification change. Therefore, in the present embodiment, a new application 2 ′ corresponding to the specification change is created with a separately installed software development tool, the old application 2 is deleted from the file system of the CF memory 15, and the new application 2 Copy 'to the file system.

  Next, in order to block the SGC active in the old application 2, a command for deleting the old application 2 from the maintenance computer 95 and setting a new application 2 'is input. When a command is entered, the IP external line manager 17 in the CCU 1 that has received the command blocks the SGC application 2 loaded in the DDR memory 12. Here, “blocking” means that an operating IP outside line continues its operation and deactivates the IP outside line when this operation ends. After the blocking, the old application 2 is unloaded from the DDR memory 12, and the new application 2 ′ is loaded from the file system of the CF memory 15 to the DDR memory 12. After this loading, when the new application 2 'is activated, the application 2' becomes operational and the dynamic application change is completed.

  As described above, according to the present embodiment, it is possible to change the function of the SGC to a function that conforms to the IP external line specification on the IP telephone carrier side while enabling functions (applications) other than the SGC. Therefore, for example, an extension telephone or a legacy outside call can be used even while the SGC function is changed.

  Next, in the event of equipment or equipment failure on the IP phone carrier due to lightning strikes, maintenance is expected on the IP phone carrier. A countermeasure in this case will be described. After the maintenance of the IP telephone carrier is completed, a command for resetting the SGC application 2 is entered from the maintenance computer 95. When a command is entered, the IP external line manager 17 in the CCU 1 that has received the command blocks the SGC application 2 loaded in the DDR memory 12. When the application 2 of the SGC is activated after the blocking, the application 2 becomes operable.

  Thus, according to the present embodiment, only the application 2 can be reset and restarted. In other words, it is possible to reset and restart only the SGC while enabling functions other than the SGC.

  Next, a second embodiment of the present invention in the case where an external CEU 3 exists as shown in FIG. 1 will be described with reference to FIG. 3, the same reference numerals as those in FIG. 2 denote the same or equivalent parts.

  In this embodiment, when CEU 3 is powered on or reset, first, the boot loader (software) in the flash memory 33 operates, and the OS stored in the flash memory 33 is loaded into the DDR memory 32 and activated. . Next, this OS loads the application 1 (CEU main body software) in the flash memory 33 into the DDR memory 32 and starts it. As a result, the CEU software runs. The CEU SGC application 2 is loaded from the CEU3 flash memory 33 to the DDR memory 32. Therefore, as described above, if there is a change in the specifications of the IP external line specifications due to the convenience of the IP telephone carrier connected to the IP network, the maintenance computer 95 uses the old CEU file system from the CF memory 15 file system. The application 2 is deleted, and a new CEU application 2 ′ is copied to the file system.

  Next, in order to block the SGC active in the old CEU application 2, the old CEU application 2 is deleted from the maintenance computer 95 and a command for setting a new CEU application 2 ′ is entered. . When a command is entered, the IP external line manager 36 in the CEU 3 that has received the command closes the SGC CEU application 2 loaded in the DDR memory 32. After the blocking, the old CEU application 2 becomes the DDR memory 32. The new CEU application 2 ′ is copied from the file system of the CF memory 15 to the flash memory 33 and loaded from the flash memory 33 to the DDR memory 32. After the loading, when the new CEU application 2 'is activated, the CEU application 2' becomes operable and the dynamic application change is completed.

  In addition, in the event of an equipment failure or equipment failure on the IP phone carrier due to a lightning strike, etc., after the maintenance on the IP phone carrier is completed, the SGC CEU application 2 in the DDR memory 32 is reset from the maintenance computer 95. Enter the command to do that. When a command is input, the IP external line manager 36 in the CEU 3 that has received the command closes the SGC CEU application 2 loaded in the DDR memory 32. When the CEU application 2 ′ is activated after the blockage, the CEU application 2 ′ becomes operable.

  Although the present invention has been described with reference to the preferred embodiments, it is obvious to those skilled in the art that the present invention is not limited to the above-described embodiments and can be arbitrarily changed without departing from the spirit of the present invention. For example, as for the applications stored in the CF memory 15, not only the application 1 (main software) and the SGC CEU application 2 (CEU software) but also other applications are naturally stored. It is apparent that an application other than the application 2 or the CEU application 2 (CEU software) can also be stored in 32.

1 is a schematic block diagram of an IP button telephone apparatus to which the present invention is applied. It is a functional block diagram of the principal part of one Embodiment of this invention. It is a functional block diagram of the principal part of other embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Main control unit CCU, 2 ... TDM control unit TCCU, 3 ... Customer edge unit CEU, 4 ... Voice conversion unit VCU, 11 ... CPU, 12 ... DDR memory (RAM ), 13 ... Flash memory, 14 ... Dedicated chip, 15 ... Compact Flash (registered trademark) (CF) memory, 16 ... L2SW, 17 ... IP external line manager, 31 ... CPU 32 ... DDR memory (RAM), 33 ... Flash memory, 34 ... Dedicated chip, 35 ... L2SW, 36 ... IP outside line manager, 95 ... Maintenance computer, 100 ...・ IP button telephone equipment.

Claims (5)

In an IP button telephone apparatus provided with software of SGC (SIP gateway controller),
A first memory (15) of the main control unit (1) for separately storing the main software of the IP button telephone device and the software of the SGC ;
A second memory (12) of the main control unit (1) that is loaded and activated by the main body software and SGC software stored in the first memory (15);
A maintenance computer (95) having functions such as writing, deleting, and command input of the SGC software,
When there is a change in the specification of the IP external line due to the convenience of the IP telephone carrier side that communicates with the IP button telephone apparatus via the IP network, the SGC software in the first memory (15) is changed to new software. The SGC software in the second memory (12) is blocked by the command entered by the maintenance computer (95), so that the existing call is maintained, and when the existing call is terminated, it is unloaded. An IP button that changes the function of the SGC to an IP external line specification on the IP telephone carrier side when the new software of the SGC is loaded from the first memory into the second memory and activated. Telephone device. The IP button telephone device according to claim 1,
If a failure occurs in the equipment / device on the IP telephone carrier side, after the maintenance on the IP telephone carrier side is completed, the second memory (12) is set by a reset command entered by the maintenance computer (95). An IP button telephone device characterized in that the software of the SGC is closed, the software of the SGC is activated after the blocking, and only the software of the SGC is reset and restarted . In an IP button telephone apparatus provided with software of SGC (SIP gateway controller),
A first memory (15) of the main control unit (1) for separately storing the main software of the IP button telephone device and the software of the SGC;
A second memory (12) of the main control unit (1) that is loaded and activated by the main body software and SGC software stored in the first memory (15);
A maintenance computer (95) having functions such as writing, deleting, and command input of the SGC software;
A third unit of the CEU (3) that separately stores the main body software of the customer edge unit (hereinafter referred to as “CEU”) of the IP button telephone apparatus and the SGC software of the CEU (hereinafter referred to as “CEU software”). A memory (33);
The main body software stored in the third memory (33) and the fourth memory (32) of the CEU (3) that is loaded and activated by the CEU software;
When there is a change in the specification of the IP external line due to the convenience of the IP telephone carrier that communicates with the IP button telephone apparatus via the IP network, the CEU software in the first memory (15) is changed to new software. The CEU software loaded in the fourth memory (32) is blocked by the maintenance computer (95), unloaded after the blocking, and the new CEU software is loaded into the first memory (15). From the third memory (33) to the fourth memory (32) and activated, and then activated . In the IP button telephone apparatus according to claim 3 ,
When a failure occurs in the equipment / device on the IP telephone carrier side, after the maintenance on the IP telephone carrier side is completed, the fourth memory (32) is issued by a reset command entered by the maintenance computer (95). An IP button telephone apparatus characterized in that the CEU software is closed, the CEU software is activated after the blocking, and only the CEU software is reset and restarted . In the IP button telephone apparatus according to claim 1 or 3,
In addition, it has a software development tool,
New software to be the change is generated in the software development tool, the software development the main control unit from the tool first (1) Memory (15) first through the connected set tools An IP button telephone device which is sent to a memory (15) .

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