技术领域technical field
本发明是关于一种使一网络分机拨打一传统分机的方法、装置及其电脑程序产品；特别是一种不需配置昂贵的纯网络交换机(IP-PBX)的一种使一网络分机拨打一传统分机的方法、装置及其电脑程序产品。The present invention relates to a method, device and computer program product for making a network extension dial a traditional extension; in particular, a method for making a network extension dial a The method and device of traditional extension and its computer program product.
背景技术Background technique
以往业界公司均采用传统电信架构的传统电话/传统分机以对外部客户/公司内部进行联系沟通。传统电信架构是借助一电话交换机(privatebranchexchange；PBX)来实现，对外透过一公众电话交换网络(如中华电信)以进行语音数据的交换，对内则连接至公司内部的传统分机。In the past, companies in the industry used the traditional telephone/traditional extension of the traditional telecommunication structure to communicate with external customers/inside the company. The traditional telecommunication structure is implemented by means of a private branch exchange (PBX), which exchanges voice data externally through a public telephone switching network (such as Chunghwa Telecom), and internally connects to traditional extensions within the company.
公众电话交换网络具有电路交换的特性。换言之，于双方沟通的过程中，两端的传统电话端借助一电话线建立专属的会话电路，同时间的其它会话无法借助该电话线进行语音数据传输。对于企业分公司间或公司内部与外部客户间的频繁会话，则必须向中华电信申请多条电话线，以避免因同时间无闲置的电话线导致双方无法建立会话。为此，业界公司必须缴交一笔不小的金额。为降低营运成本，如何降低通讯费用已渐渐成为重要的议题，也因此发展出一网络电话(viceoverIP；VoIP)的技术。The public switched telephone network has the characteristics of circuit switching. In other words, during the process of communication between the two parties, the traditional telephone terminals at both ends establish a dedicated conversation circuit through a telephone line, and other conversations at the same time cannot use the telephone line for voice data transmission. For frequent conversations between corporate branches or between internal and external customers, it is necessary to apply for multiple telephone lines from Chunghwa Telecom to avoid failure to establish conversations due to no idle telephone lines at the same time. To this end, companies in the industry must pay a considerable amount. In order to reduce operating costs, how to reduce communication costs has gradually become an important issue, and therefore a technology of vice over IP (VoIP) has been developed.
网络电话是一种透过互联网以传送/接收数字化语音分组的技术。如同传统电话分接传统分机，网络电话亦可借助由一网络协议电话交换机(Internetprotocolprivatebranchexchange；IPPBX)对内分接出许多网络分机。不同于传统电话/传统分机必须受限于电话线可及的范围，只要有网络存在的地方即能架设网络电话/网络分机，因此其能配置的范围更为广大。VoIP is a technology that transmits/receives digitized voice packets via the Internet. Just like a traditional telephone is connected to a traditional extension, an Internet phone can also use an Internet protocol private branch exchange (IPPBX) to internally tap many network extensions. Unlike traditional telephones/traditional extensions that must be limited by the reach of telephone lines, VoIP/Internet extensions can be set up as long as there is a network, so the scope of configuration is wider.
目前业界的许多公司倾向于建立传统分机与网络分机共存在的一企业电话网络，以容纳已存在的传统分机以及较低成本的网络分机。然而，如何使企业电话网络中的传统分机与网络分机彼此互拨为此技术领域的重要课题。At present, many companies in the industry tend to establish an enterprise telephone network in which traditional extensions and network extensions coexist to accommodate existing traditional extensions and lower-cost network extensions. However, how to make the traditional extension and the network extension in the enterprise telephone network dial each other is an important subject in the technical field.
请参阅图1，其示出包含传统分机及网络分机的一企业电话网络1。此企业电话网络1包含一公众电话交换网络15、一混合型网络协议电话交换机11、一互联网13、传统分机14a、14b及网络分机12a、12b。混合型网络协议电话交换机11是传统的电话交换机硬件升级后的态样，能使网络分机12a、12b透过互联网13及混合型网络协议电话交换机11拨打传统分机14a、14b。同时，网络分机12a、12b也可透过网络13、混合式网络协议电话交换机11以及公众电话交换网络15对外会话。然而，混合型网络协议电话交换机11的价格约在数千万元至数亿元，故仅有少数的企业能够负担。Please refer to FIG. 1 , which shows an enterprise telephone network 1 including traditional extensions and network extensions. The enterprise telephone network 1 includes a public switched telephone network 15, a mixed network protocol telephone exchange 11, an Internet 13, traditional extensions 14a, 14b and network extensions 12a, 12b. The hybrid network protocol telephone exchange 11 is an upgraded form of the traditional telephone exchange hardware, which enables the network extensions 12a, 12b to dial the traditional extensions 14a, 14b through the Internet 13 and the hybrid network protocol telephone exchange 11. At the same time, the network extensions 12a and 12b can also communicate externally through the network 13 , the hybrid network protocol telephone exchange 11 and the public telephone switching network 15 . However, the price of the hybrid network protocol telephone exchange 11 is about tens of millions to hundreds of millions of yuan, so only a few enterprises can afford it.
由此可知，如何提供一种能同时维持会话品质，又不需昂贵花费的使网络分机拨打传统分机的技术，为此技术领域共同期盼的目标。From this, it can be seen that how to provide a technology for enabling a network extension to dial a traditional extension while maintaining the conversation quality without expensive expenses is a common goal in the technical field.
发明内容Contents of the invention
本发明的一目的在于提供一种使一网络分机拨打一传统分机的装置。一企业电话网络包含该网络分机及该传统分机。该网络分机具有一网络分机号码；该传统分机具有一传统分机号码。An object of the present invention is to provide a device for making a network extension dial a traditional extension. An enterprise telephone network includes the network extension and the traditional extension. The network extension has a network extension number; the traditional extension has a traditional extension number.
为达上述目的，该装置包含一会话初始协议代理器(sessioninitiationprotocolproxy；SIPproxy)以及一实时传输协议中继器(real-timetransportprotocolrelay；RTPrelay)。该会话初始协议代理器用以自该网络分机接收一会话要求，该会话要求包含该传统分机号码。该会话初始协议代理器用以将该会话要求中的该传统分机号码以该企业电话网络的一总机号码取代，并用以根据该总机号码传送该取代后的会话要求至一具有该总机号码的网络网关，以便该网络网关因应该取代后的会话要求，透过一电话交换机传送一响铃信号至一语音自动机。To achieve the above purpose, the device includes a session initiation protocol proxy (session initiation protocol proxy; SIP proxy) and a real-time transport protocol relay (real-time transport protocol relay; RTPrelay). The SIP agent is used for receiving a session request from the network extension, and the session request includes the legacy extension number. The session initiation protocol agent is used to replace the traditional extension number in the session request with a switchboard number of the enterprise telephone network, and to transmit the replaced session request to a network gateway with the switchboard number according to the switchboard number , so that the network gateway sends a ringing signal to a voice automatic machine through a telephone exchange in response to the replaced session request.
该会话初始协议代理器还用以自该网络网关接收一确认信号，该确认信号表示该语音自动机答复该响铃信号。该会话初始协议代理器用以传送该确认信号至该网络分机，用以自该网络分机接收一响应信号，以及用以传送该响应信号至该网络网关。该响应信号是该网络分机因应该确认信号而产生。该会话初始协议代理器还用以传送该传统分机号码与该网络分机号码的一对应关系，该实时传输协议中继器是用以接收该对应关系以及储存该对应关系。The SIP agent is also configured to receive an acknowledgment signal from the network gateway, the acknowledgment signal indicating that the voice robot answers the ring signal. The SIP agent is used for sending the acknowledgment signal to the network extension, for receiving a response signal from the network extension, and for sending the response signal to the network gateway. The response signal is generated by the network extension in response to the confirmation signal. The SIP agent is also used for transmitting a correspondence between the traditional extension number and the network extension number, and the RTP repeater is used for receiving the correspondence and storing the correspondence.
本发明的另一目的在于提供一种使一网络分机拨打一传统分机的方法。一企业电话网络包含该网络分机及该传统分机。该网络分机具有一网络分机号码；该传统分机具有一传统分机号码。Another object of the present invention is to provide a method for making a network extension dial a traditional extension. An enterprise telephone network includes the network extension and the traditional extension. The network extension has a network extension number; the traditional extension has a traditional extension number.
为达上述目的，该方法包含以下步骤：(a)自该网络分机接收一会话要求，该会话要求包含该传统分机号码；(b)将该会话要求中的该传统分机号码以该企业电话网络的一总机号码取代；(c)根据该总机号码，传送该取代后的会话要求至一具有该总机号码的网络网关，以便该网络网关因应该取代后的会话要求而透过一电话交换机传送一响铃信号至一语音自动机；(d)自该网络网关接收一确认信号，该确认信号表示该语音自动机答复该响铃信号；(e)传送该确认信号至该网络分机；(f)自该网络分机接收一响应信号，该响应信号是该网络分机因应该确认信号而产生；以及(g)传送该响应信号至该网络网关。To achieve the above object, the method includes the following steps: (a) receiving a session request from the network extension, the session request including the traditional extension number; (b) sending the traditional extension number in the session request to the enterprise telephone network (c) according to the switchboard number, send the replaced session request to a network gateway with the switchboard number, so that the network gateway sends a ring signal to a voice automatic machine; (d) receive a confirmation signal from the network gateway, the confirmation signal indicates that the voice automatic machine replies to the ring signal; (e) transmit the confirmation signal to the network extension; (f) receiving a response signal from the network extension, the response signal being generated by the network extension in response to the acknowledgment signal; and (g) transmitting the response signal to the network gateway.
本发明的又一目的在于提供一种电脑程序产品，该电脑程序产品内储一种使一网络分机拨打一传统分机的程序。当该程序被加载一微处理器后，使该微处理器执行多个程序指令。该等程序指令使该微处理器完成前段所述的使一网络分机拨打一传统分机的方法。Another object of the present invention is to provide a computer program product, which stores a program for making a network extension dial a traditional extension. After the program is loaded into a microprocessor, the microprocessor is made to execute a plurality of program instructions. These program instructions make the microprocessor implement the method for making a network extension dial a traditional extension described in the preceding paragraph.
由上述可知，本发明是使会话初始协议代理器具有置换讯令中号码的功能，并使实时传输协议中继器具有代发双音多频(dualtonemultifrequency；DTMF)分组的机制。据此，本发明仅需新增会话初始协议代理器及实时传输协议中继器，即可取代现有技术的混合式网络协议电话交换机的功能，故可大幅降低硬件配置的成本。As can be seen from the above, the present invention enables the SIP agent to have the function of replacing the number in the signaling, and enables the RTP repeater to have a mechanism for sending dual-tone multifrequency (DTMF) packets on behalf of others. Accordingly, the present invention only needs to add a SIP agent and an RTP repeater to replace the function of the hybrid network protocol telephone exchange in the prior art, thus greatly reducing the cost of hardware configuration.
附图说明Description of drawings
为让本发明的上述目的、技术特征、和优点能更明显易懂，下面将配合附图对本发明的较佳实施例进行详细说明，其中：In order to make the above-mentioned purpose, technical features, and advantages of the present invention more obvious and understandable, preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:
图1是描绘现有技术的企业电话网络的示意图；Figure 1 is a schematic diagram depicting a prior art enterprise telephony network;
图2是描绘第一实施例的示意图；以及Figure 2 is a schematic diagram depicting the first embodiment; and
图3A及图3B是描绘第二实施例的示意图。3A and 3B are schematic diagrams depicting the second embodiment.
具体实施方式Detailed ways
本发明是关于使一网络分机拨打一传统分机的装置、方法及其电脑程序产品。相较于现有技术，本发明所提供的装置、方法及其电脑程序产品降低了网络分机拨打传统分机的成本。以下的实施例是用以举例说明本发明内容，并非用以限制本发明。需说明者，以下实施例及附图中，与本发明无关的元件已省略而未绘示，且附图中各元件间的尺寸关系仅为求容易了解，非用以限制实际比例。The invention relates to a device, a method and a computer program product for making a network extension dial a traditional extension. Compared with the prior art, the device, method and computer program product provided by the present invention reduce the cost of dialing a traditional extension from a network extension. The following examples are used to illustrate the content of the present invention, but not to limit the present invention. It should be noted that in the following embodiments and drawings, elements irrelevant to the present invention have been omitted and not shown, and the dimensional relationship among the elements in the drawings is only for easy understanding, not for limiting the actual ratio.
请参阅图2，其为根据本发明的第一实施例的一企业电话网络2。此企业电话网络2包含一网络分机21、一传统分机22、一使网络分机拨打传统分机的装置23(以下简称拨打装置23)、一网络网关24、一电话交换机25以及一语音自动机26。其中，拨打装置23包含一会话初始协议代理器(SessionInitiationProtocolProxy；SIPProxy)23a以及一实时传输协议中继器(Real-timeTransportProtocolRelay；RTPRelay)23b。网络分机21、传统分机22、网络网关24、电话交换机25以及语音自动机26为所属技术领域中的标准硬件设备，故不详述。Please refer to FIG. 2 , which shows an enterprise telephone network 2 according to the first embodiment of the present invention. This enterprise telephone network 2 comprises a network extension 21, a traditional extension 22, a device 23 (hereinafter referred to as the dialing device 23) for making the network extension dial the traditional extension, a network gateway 24, a telephone exchange 25 and a voice automatic machine 26. Wherein, the dialing device 23 includes a session initiation protocol proxy (SessionInitiationProtocolProxy; SIPProxy) 23a and a real-time transport protocol relay (Real-timeTransportProtocolRelay; RTPRelay) 23b. The network extension 21, the traditional extension 22, the network gateway 24, the telephone exchange 25 and the voice automaton 26 are standard hardware devices in the technical field, so they will not be described in detail.
需注意者，若将此企业电话网络2设置于一所学校，则此企业电话网络2仅需配置一个拨打装置23，然而，其它实施态样的企业电话网络可配置其它数目的拨打装置23，以避免当一个拨打装置23无法运作时所造成的通讯中断。换言之，拨打装置23的数目并非用以限制本发明的范围。It should be noted that if the enterprise telephone network 2 is set in a school, then the enterprise telephone network 2 only needs to be equipped with one dialing device 23, however, other implementations of the enterprise telephone network can be configured with other number of dialing devices 23, In order to avoid communication interruption caused when a dialing device 23 fails to operate. In other words, the number of dialing devices 23 is not intended to limit the scope of the present invention.
网络分机21具有一网络分机号码(例如6000)，而传统分机22具有一传统分机号码(例如2025)。首先，当一使用者欲利用网络分机21与传统分机22会话时，使用者于网络分机21按下传统分机22所具有的传统分机号码(即2025)。使用者按下传统分机号码(即2025)后，网络分机21即产生一会话要求201，此会话要求201包含传统分机22所具有的传统分机号码(即2025)。会话初始协议代理器23a则自网络分机21接收此会话要求201。于本实施例中，此会话要求201为网络电话架构中标准的邀请讯令，其内容为“invite2025...”。所属技术领域具备通常知识者应熟知网络电话架构中的邀请讯令，故不赘述。The network extension 21 has a network extension number (for example, 6000), and the traditional extension 22 has a traditional extension number (for example, 2025). First, when a user wants to use the network extension 21 to communicate with the traditional extension 22, the user presses the traditional extension number (ie 2025) of the traditional extension 22 on the network extension 21. After the user presses the traditional extension number (ie 2025), the network extension 21 generates a session request 201, and the session request 201 includes the traditional extension number (ie 2025) of the traditional extension 22. The SIP agent 23a then receives the session request 201 from the network extension 21 . In this embodiment, the session request 201 is a standard invitation signal in the VoIP framework, and its content is "invite2025...". Those with ordinary knowledge in the technical field should be familiar with the invitation signal in the VoIP architecture, so details will not be repeated.
会话初始协议代理器23a于接收该会话要求201后，传送网络分机号码(即6000)及传统分机号码(即2025)的一对应关系202至实时传输协议中继器23b。实时传输协议中继器23b则储存此网络分机号码(即6000)及传统分机号码(即2025)的对应关系。之后，实时传输协议中继器23b因应此对应关系202，分配实时传输协议信道的一互联网地址(IPaddress)及一端口(port)。实时传输协议中继器23b并传送包含此互联网地址及此端口的一分配信号203至会话初始协议代理器23a，以作为网络分机21与传统分机22间后续语音分组相互传送的依据。After receiving the session request 201, the SIP agent 23a sends a correspondence 202 between the network extension number (ie 6000) and the traditional extension number (ie 2025) to the RTP repeater 23b. The RTP repeater 23b stores the corresponding relationship between the network extension number (ie 6000) and the traditional extension number (ie 2025). Then, according to the corresponding relationship 202, the RTP repeater 23b allocates an IP address and a port of the RTP channel. The RTP repeater 23b also transmits a distribution signal 203 including the Internet address and the port to the SIP agent 23a, as the basis for the mutual transmission of subsequent voice packets between the network extension 21 and the traditional extension 22.
接着，会话初始协议代理器23a将会话要求201中的传统分机号码(即2025)以企业电话网络2的一总机号码(例如0282122000)取代。以本实施例而言，取代后的会话要求201’亦为网络电话架构中标准的邀请讯令，其内容为“invite0282122000...”。接着，会话初始协议代理器23a根据总机号码(即0282122000)，将取代后的会话要求201’传送至具有此总机号码的网络网关24。会话初始协议代理器23a并传送一尝试信号204至网络分机21，以通知网络分机21目前已开始处理其会话要求201。于本实施例中，此尝试信号204为网络电话架构的标准尝试讯令，其内容为“100trying”。所属技术领域具备通常知识者应熟知网络电话架构的标准尝试讯令，故不详述。Next, the SIP agent 23a replaces the traditional extension number (ie 2025) in the session request 201 with a switchboard number of the enterprise telephone network 2 (eg 0282122000). In this embodiment, the replaced session request 201' is also a standard invitation signal in the VoIP architecture, and its content is "invite0282122000...". Next, the SIP agent 23a transmits the replaced session request 201' to the network gateway 24 with the switchboard number (namely 0282122000) according to the switchboard number. The SIP agent 23a also sends a try signal 204 to the network extension 21 to inform the network extension 21 that it has started to process its session request 201 now. In this embodiment, the trying signal 204 is a standard trying signal of the VoIP framework, and its content is "100trying". Those with ordinary knowledge in the technical field should be familiar with the standard trial signaling of the VoIP architecture, so details will not be described.
另一方面，网络网关24接收到会话初始协议代理器23a传来的会话要求201’后，网络网关24透过电话交换机25传送一第一响铃信号205a至语音自动机26。具体而言，网络网关24先传送第一响铃信号205a至电话交换机25，电话交换机25再传送此第一响铃信号205a至语音自动机26。之后，网络网关24传送一第二响铃信号205b至会话初始协议代理器23a，会话初始协议代理器23a再传送此第二响铃信号205b至网络分机21。此时，网络分机21的使用者将从网络分机21的听筒听到电话的想铃声。前述第二响铃信号205b为网络电话架构的标准响铃讯令，其内容为“183Ringing”或“180Ringing”。所属技术领域具备通常知识者应熟知网络电话架构的标准响铃讯令，故不详述。On the other hand, after the network gateway 24 receives the session request 201' from the SIP agent 23a, the network gateway 24 sends a first ringing signal 205a to the voice automatic machine 26 through the telephone exchange 25. Specifically, the network gateway 24 first transmits the first ringing signal 205 a to the telephone switch 25 , and the telephone switch 25 then transmits the first ringing signal 205 a to the voice automaton 26 . Afterwards, the network gateway 24 sends a second ringing signal 205b to the SIP agent 23a, and the SIP agent 23a then sends the second ringing signal 205b to the network extension 21. At this time, the user of the network extension 21 will hear the desired ringing tone of the phone from the handset of the network extension 21. The aforementioned second ringing signal 205b is a standard ringing signal of the VoIP framework, and its content is "183Ringing" or "180Ringing". Those with ordinary knowledge in the technical field should be familiar with the standard ringing signal of the VoIP architecture, so no detailed description is given.
当语音自动机26检测到第一响铃信号205a时，自动接起电话(offhook)并播放问候语。传统交换机25会检测到语音自动机26接起电话的电路动作213，之后网络网关24透过传统交换机25检测到语音自动机26接起电话的电路动作213。When the voice robot 26 detects the first ring signal 205a, it automatically picks up the phone (offhook) and plays a greeting. The traditional switch 25 will detect the circuit action 213 that the voice automaton 26 picks up the phone, and then the network gateway 24 detects the circuit action 213 that the voice automaton 26 picks up the phone through the traditional switch 25 .
因应检测到语音自动机26接起电话的电路动作213，网络网关24传送一确认信号206至会话初始协议代理器23a，此确认信号206表示语音自动机26答复第一响铃信号205a。会话初始协议代理器23a自网络网关24接收此确认信号206，再传送此确认信号206至网络分机21。于本实施例中，确认信号206为网络电话架构的标准确认讯令，其内容为“200OK”。所属技术领域具备通常知识者应熟知网络电话架构的标准确认讯令，故不详述。In response to the circuit action 213 detecting that the voice robot 26 picked up the phone, the network gateway 24 sends an acknowledgment signal 206 to the SIP agent 23a indicating that the voice robot 26 replied to the first ring signal 205a. The SIP proxy 23 a receives the confirmation signal 206 from the network gateway 24 , and then sends the confirmation signal 206 to the network extension 21 . In this embodiment, the acknowledgment signal 206 is a standard acknowledgment signal of the VoIP framework, and its content is "200 OK". Those with ordinary knowledge in the technical field should be familiar with the standard confirmation signaling of the VoIP architecture, so details are not described here.
网络分机21接收确认信号206后，因应此确认信号206产生一响应信号207，此响应信号207包含传统分机号码(即2025)。会话初始协议代理器23a则自网络分机21接收此响应信号207。于本实施例中，响应信号207为网络电话架构的标准响应讯令，其内容微“ACK2025...”。所属技术领域具备通常知识者应熟知网络电话架构的标准响应讯令，故不详述。会话初始协议代理器23a于接收响应信号207后，以总机号码(即0282122000)取代响应信号207所包含的传统分机号码(即2025)，再根据总机号码，将取代后的响应信号207’传送至网络网关24。以本实施例而言，此响应信号207’之内容为“ACK0282122000...”。After receiving the confirmation signal 206, the network extension 21 generates a response signal 207 in response to the confirmation signal 206, and the response signal 207 includes the traditional extension number (ie 2025). The SIP agent 23a then receives the response signal 207 from the network extension 21 . In this embodiment, the response signal 207 is a standard response command of the VoIP framework, and its content is "ACK2025...". Those with ordinary knowledge in the technical field should be familiar with the standard response commands of the VoIP architecture, so details will not be described. After receiving the response signal 207, the SIP agent 23a replaces the traditional extension number (ie 2025) included in the response signal 207 with the switchboard number (ie 0282122000), and then sends the replaced response signal 207' to network gateway 24 . In this embodiment, the content of the response signal 207' is "ACK0282122000...".
之后，实时传输协议中继器23b将网络分机21所拨打的传统分机号码(即2025)以双音多频(dualtonemultifrequency；DTMF)形式表达，以产生一声音讯息208。具体而言，此声音讯息208为一实时传输协议(realtimetransport；RTP)分组，其内容包含DTMF＝2025。实时传输协议中继器23b接着传送此声音讯息208至网络网关24。网络网关24将声音讯息208转换为一双音多频形式的模拟信号208’后，透过电话交换机25将此模拟信号208’传送至语音自动机26。需说明者，此模拟信号208’实质上为传统分机号码(即2025)的按键音。当语音自动机26接收到此模拟信号208’后，会转接至传统分机22。此时，传统分机22将会发出来电响铃，待另一使用者接起传统分机22时，双方便可以开始会话。Afterwards, the RTP repeater 23 b expresses the traditional extension number (ie 2025 ) dialed by the network extension 21 in the form of dual tone multifrequency (DTMF) to generate a voice message 208 . Specifically, the audio message 208 is a realtime transport protocol (RTP) packet, and its content includes DTMF=2025. The RTP repeater 23b then sends the voice message 208 to the network gateway 24 . After the network gateway 24 converts the voice message 208 into an analog signal 208' in DTMF form, the analog signal 208' is transmitted to the automatic voice machine 26 through the telephone exchange 25. It should be noted that the analog signal 208' is essentially the key tone of a traditional extension number (namely 2025). After the voice automatic machine 26 receives the analog signal 208', it will be transferred to the traditional extension 22. At this point, the traditional extension 22 will ring for an incoming call, and when another user picks up the traditional extension 22, both parties can start a conversation.
于双方会话时，网络分机21是根据之前所分配的互联网地址与端口，透过实时传输协议中继器23b传送数字形式的实时传输协议分组214至网络网关24。网络网关24将数字形式的实时传输协议分组214转换为模拟语音分组214’后，透过电话交换机25传送至传统分机22。同样的，网络网关24亦会将传统分机22传来的模拟语音分组214’转换为数字形式的实时传输协议分组214，再透过实时传输协议中继器23b传送至网络分机21。During the conversation between the two parties, the network extension 21 sends the digital RTP packet 214 to the network gateway 24 through the RTP repeater 23b according to the previously assigned Internet address and port. The network gateway 24 converts the digital RTP packet 214 into an analog voice packet 214', and then transmits it to the traditional extension 22 through the telephone exchange 25. Similarly, the network gateway 24 will also convert the analog voice packet 214' from the traditional extension 22 into a digital RTP packet 214, and then transmit it to the network extension 21 through the RTP repeater 23b.
当使用传统电话22的使用者挂断电话时(即结束双方会话)，网络网关24会检测到来自传统电话22的一挂断信号215。因应检测到此挂断信号215，网络网关24传送一结束会话要求209，此结束会话要求209包含网络网关24所具有的总机号码(即0282122000)。本实施例中，结束会话要求209为网络电话架构的标准结束讯令，其内容为“BYE0282122000...”。When the user using the traditional phone 22 hangs up the phone (ie ends the conversation between the two parties), the network gateway 24 will detect a hang up signal 215 from the traditional phone 22 . In response to detecting the hang-up signal 215, the network gateway 24 sends an end-session request 209. The end-session request 209 includes the switchboard number of the network gateway 24 (ie 0282122000). In this embodiment, the session end request 209 is a standard end signal of the VoIP architecture, and its content is "BYE0282122000...".
会话初始协议代理器23a于接收到该结束会话要求209后，以网络分机21的网络分机号码(即6000)取代结束会话要求29中的总机号码。以本实施例而言，取代后的结束会话要求209’的内容为“BYE6000...”。接着，会话初始协议代理器23a根据网络分机号码(即6000)，将取代后的结束会话要求209’传送至网络分机21。网络分机21则根据此取代后的结束会话要求209’结束与传统分机22间的会话。接着，网络分机21传送一确认信号210至会话初始协议代理器23a，会话初始协议代理器23a接收后，将的传送至网络网关24。此确认信号210为网络电话架构的标准确认讯令，其内容为“200OK”。如此即结束了网络分机21与传统分机22的会话。After receiving the end session request 209, the SIP agent 23a replaces the switchboard number in the end session request 29 with the network extension number of the network extension 21 (ie 6000). In this embodiment, the content of the replaced session end request 209' is "BYE6000...". Next, the SIP agent 23a transmits the replaced end session request 209' to the network extension 21 according to the network extension number (namely 6000). The network extension 21 ends the session with the traditional extension 22 according to the substituted end session request 209'. Next, the network extension 21 sends an acknowledgment signal 210 to the SIP agent 23a, and the SIP agent 23a sends it to the network gateway 24 after receiving it. The acknowledgment signal 210 is a standard acknowledgment signal of the VoIP architecture, and its content is "200 OK". In this way, the session between the network extension 21 and the traditional extension 22 is ended.
由上述可知，第一实施例透过会话初始协议代理器23a将会话要求201中的传统分机号码取代为总机号码，再透过实时传输协议中继器23b产生包含DTMF＝2025的声音讯息208，即可使网络分机21拨打传统分机22。相较于现有直接配置成本昂贵的纯网络交换机(IP-PBX)，本发明能以较低的成本完成网络分机拨打传统分机的技术。As can be seen from the above, in the first embodiment, the traditional extension number in the session request 201 is replaced by the switchboard number through the SIP agent 23a, and then the voice message 208 including DTMF=2025 is generated through the real-time transport protocol repeater 23b, That is, the network extension 21 can dial the traditional extension 22 . Compared with the existing pure network exchange (IP-PBX) which is directly configured and expensive, the invention can complete the technology of dialing a traditional extension from a network extension at a lower cost.
本发明的第二实施例为使一网络分机拨打一传统分机的方法，其流程图描绘于图3A及图3B。第二实施例的方法适用于如第一实施例所描述的会话初始协议代理器23a及实时传输协议中继器23b。图3A所绘的步骤分为二栏，其中左栏是由会话初始协议代理器23a所执行，右栏则是由实时传输协议中继器23b执行。图3B所描绘的步骤则皆由会话初始协议代理器23a执行。The second embodiment of the present invention is a method for making a network extension dial a traditional extension, the flow chart of which is depicted in FIG. 3A and FIG. 3B . The method of the second embodiment is applicable to the SIP proxy 23a and the RTP repeater 23b as described in the first embodiment. The steps depicted in FIG. 3A are divided into two columns, wherein the left column is executed by the SIP agent 23a, and the right column is executed by the RTP repeater 23b. The steps depicted in FIG. 3B are all executed by the SIP agent 23a.
如第一实施例所述，会话初始协议代理器23a及实时传输协议中继器23b包含于一企业电话网络。如同第一实施例，此企业电话网络还包含网络分机、传统分机、网络网关、电话交换机及语音自动机。网络分机与传统分机分别具有一网络分机号码以及一传统分机号码。As described in the first embodiment, the SIP agent 23a and the RTP repeater 23b are included in an enterprise telephone network. Like the first embodiment, the enterprise telephone network also includes network extensions, traditional extensions, network gateways, telephone switches and voice automatic machines. The network extension and the traditional extension respectively have a network extension number and a traditional extension number.
第二实施例首先执行步骤301，使会话初始协议代理器23a自网络分机接收一会话要求，此会话要求包含传统分机所具有的传统分机号码。接着，于步骤302中，使会话初始协议代理器23a于接收会话要求后，传送网络分机号码与传统分机号码的一对应关系至实时传输协议中继器23b。In the second embodiment, step 301 is executed first, so that the SIP agent 23a receives a session request from the network extension, and the session request includes the legacy extension number of the legacy extension. Next, in step 302, after receiving the session request, the SIP agent 23a sends a correspondence between the network extension number and the traditional extension number to the RTP repeater 23b.
接着，于步骤303中，使实时传输协议中继器23b接收前述的对应关系；于步骤304中，储存此对应关系。此方法接着执行步骤305，使实时传输协议中继器23b因应此对应关系，分配实时传输协议信道的一互联网地址及一端口。接着，执行步骤306，使实时传输协议中继器23b传送包含互联网地址和端口的一分配信号至会话初始协议代理器23a。Next, in step 303, the RTP repeater 23b receives the aforementioned corresponding relationship; in step 304, the corresponding relationship is stored. The method then executes step 305, so that the RTP repeater 23b allocates an Internet address and a port of the RTP channel according to the corresponding relationship. Next, step 306 is executed to make the RTP repeater 23b transmit an assignment signal including the Internet address and port to the SIP agent 23a.
第二实施例于步骤307中，使会话初始协议代理器23a将步骤301所接收的会话要求中的传统分机号码以企业电话网络的一总机号码取代。接着执行步骤308，使会话初始协议代理器23a根据总机号码，传送取代后的会话要求至一具有该总机号码的网络网关。于步骤309中，使会话初始协议代理器23a传送一尝试信号至网络分机，以通知网络分机目前已开始处理其会话要求。In the second embodiment, in step 307, the SIP agent 23a replaces the traditional extension number in the session request received in step 301 with a switchboard number of the enterprise telephone network. Then step 308 is executed to make the SIP agent 23a send the replaced session request to a network gateway with the switchboard number according to the switchboard number. In step 309, the SIP agent 23a sends a try signal to the network extension to inform the network extension that it has started to process its session request.
另一方面，于步骤308后，具有该总机号码的网络网关会因应此取代后的信道要求，透过电话交换机传送一响铃信号至语音自动机。语音自动机检测到响铃信号时，自动接起电话并播放问候语。传统交换机会检测到语音自动机接起电话的电路动作，之后网络网关透过传统交换机检测到语音自动机接起电话的电路动作。因应检测到语音自动机接起电话的电路动作，网络网关传送一确认信号至会话初始协议代理器23a。On the other hand, after step 308, the network gateway with the switchboard number will send a ringing signal to the automatic voice machine through the telephone exchange in response to the replaced channel request. When the voice automaton detects a ringing signal, it automatically answers the phone and plays a greeting. The traditional switch will detect the circuit action of the voice robot picking up the phone, and then the network gateway will detect the circuit action of the voice robot picking up the phone through the traditional switch. In response to detecting the circuit action of the voice robot picking up the phone, the network gateway sends an acknowledgment signal to the SIP agent 23a.
该方法接着执行步骤310，使会话初始协议代理器23a自网络网关接收确认信号，其中，此确认信号表示语音自动机答复该会话要求。接着执行步骤311，使会话初始协议代理器23a传送此确认信号至网络分机。于步骤312中，使会话初始协议代理器23a自网络分机接收一响应信号，此响应信号是网络分机因应确认信号而产生，此响应信号包含传统分机的号码。于步骤313，使会话初始协议代理器23a以总机号码取代响应信号内的传统分机号码，并将的传送至网络网关。The method then executes step 310, causing the SIP agent 23a to receive an acknowledgment signal from the network gateway, wherein the acknowledgment signal indicates that the voice robot answers the session request. Next, step 311 is executed to enable the SIP agent 23a to send the confirmation signal to the network extension. In step 312, the SIP agent 23a receives a response signal from the network extension, the response signal is generated by the network extension in response to the confirmation signal, and the response signal includes the number of the traditional extension. In step 313, the SIP agent 23a replaces the conventional extension number in the response signal with the switchboard number, and sends it to the network gateway.
接着执行步骤314，使实时传输协议中继器23b将传统分机号码以双音多频形式表达，以产生一声音讯息。此声音讯息为一实时传输协议分组。接着执行步骤315，使实时传输协议中继器23b传送此声音讯息至网络网关。之后，网络分机与传统分机即可进行会话。Then step 314 is executed to make the RTP repeater 23b express the traditional extension number in DTMF format to generate a voice message. The audio message is an RTP packet. Then step 315 is executed to make the RTP repeater 23b send the voice message to the network gateway. After that, the network extension and the traditional extension can have a conversation.
当双方会话结束时，于步骤316中，使会话初始协议代理器23a自网络网关接收一结束会话要求，此结束会话要求包含网络网关所具有的总机号码。接着执行步骤317，使会话初始协议代理器23a以网络分机号码取代结束会话要求中的总机号码。接着执行步骤318，使会话初始协议代理器23a将取代后的结束会话要求传送至网络分机。接着执行步骤319，使会话初始协议代理器23a自网络分机接收一确认信号。最后执行步骤320，使会话初始协议代理器23a传送确认信号至网络网关。如此即结束了网络分机与传统分机的会话。When the session between the two parties ends, in step 316, the SIP agent 23a receives an end-session request from the network gateway, and the end-session request includes the switchboard number of the network gateway. Then step 317 is executed to make the SIP agent 23a replace the switchboard number in the session end request with the network extension number. Next, step 318 is executed, so that the SIP agent 23a transmits the replaced end-session request to the network extension. Then step 319 is executed to make the SIP agent 23a receive a confirmation signal from the network extension. Finally, step 320 is executed to enable the SIP agent 23a to transmit an acknowledgment signal to the network gateway. This ends the session between the network extension and the traditional extension.
除上述步骤外，第二实施例亦能执行第一实施例的无线网络系统的动作且亦具有第一实施例的无线网络系统所具有的功能。所属技术领域具有通常知识者可直接了解第二实施例如何基于上述第一实施例的无线网络系统以执行此等操作，故不赘述。In addition to the above steps, the second embodiment can also execute the actions of the wireless network system of the first embodiment and also have the functions of the wireless network system of the first embodiment. Those skilled in the art can directly understand how the second embodiment performs these operations based on the wireless network system of the first embodiment, so details are omitted.
本发明的第三实施例为一种电脑程序产品，内储一种使一网络分机拨打一传统分机的程序，一企业网络包含此网络分机及此传统分机。当一微处理器加载此程序后，会执行多个指令，以完成前述第二实施例所述的步骤。The third embodiment of the present invention is a computer program product, which stores a program for making a network extension dial a traditional extension. An enterprise network includes the network extension and the traditional extension. After a microprocessor loads the program, it will execute multiple instructions to complete the steps described in the aforementioned second embodiment.
第三实施例电脑程序产品可为只读存储器(readonlymemory；ROM)、闪存、软盘、硬盘、光盘、随身碟、磁带、可由网络存取的数据库，或所属技术领域具有通常知识者所知悉的具有相同功能的任何其它储存媒体。The computer program product of the third embodiment can be a read-only memory (readonly memory; ROM), a flash memory, a floppy disk, a hard disk, an optical disk, a flash disk, a magnetic tape, a database that can be accessed by a network, or a computer program known to those skilled in the art. Any other storage media with the same function.
综合上述，本发明是使会话初始协议代理器将会话要求中的传统分机号码取代为企业网络的总机号码，再使实时传输协议中继器产生双音多频形式的传统分机号码，并将的传送至网络网关。据此，本发明仅需新增会话初始协议代理器与实时传输协议中继器，搭配现有的电话交换器，即能使网络分机拨打传统分机。相较于现有以混合式网络协议电话交换机来完成网络分机拨打传统分机，本发明显然大幅降低成本。In summary, the present invention makes the SIP agent replace the traditional extension number in the session request with the switchboard number of the enterprise network, then makes the real-time transport protocol repeater produce the traditional extension number of the DTMF form, and the sent to the network gateway. Accordingly, the present invention only needs to add a session initiation protocol agent and a real-time transport protocol repeater, and cooperate with the existing telephone exchange, so that the network extension can dial the traditional extension. Compared with the existing hybrid network protocol telephone exchange to complete the call of the traditional extension from the network extension, the invention obviously reduces the cost significantly.
上述的实施例仅用来例举本发明的实施态样，以及阐释本发明的技术特征，并非用来限制本发明的保护范畴。任何熟悉此技术者可轻易完成的改变或均等性的安排均属于本发明所主张的范围，本发明的权利保护范围应以申请专利范围为准。The above-mentioned embodiments are only used to illustrate the implementation of the present invention and explain the technical features of the present invention, and are not intended to limit the scope of protection of the present invention. Any changes or equivalence arrangements that can be easily accomplished by those skilled in the art fall within the scope of the present invention, and the protection scope of the present invention should be based on the scope of the patent application.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810181636.5ACN101742010B (en) | 2008-11-27 | 2008-11-27 | A network-extension is made to dial method and the device of a traditional extension |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810181636.5ACN101742010B (en) | 2008-11-27 | 2008-11-27 | A network-extension is made to dial method and the device of a traditional extension |
| Publication Number | Publication Date |
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| CN101742010A CN101742010A (en) | 2010-06-16 |
| CN101742010Btrue CN101742010B (en) | 2015-11-25 |
| Application Number | Title | Priority Date | Filing Date |
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| CN200810181636.5AExpired - Fee RelatedCN101742010B (en) | 2008-11-27 | 2008-11-27 | A network-extension is made to dial method and the device of a traditional extension |
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