TWI261455B - VoIP communication module - Google Patents

Abstract

A VoIP (voice over Internet protocol) communication module is provided to supply capability of establishing the communication connection over a network, comprising a network connection module, a command translator and a processing module. In this case, the its command translator translates AT commands from external application program or module, thereby being controlled by the AT commands, such that it provides the communication function over IP network service.

Description

1261455 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a network voice communication module, and in particular, it can cause a terminal device to use an AT command set as a standard control interface. [Prior Art] Due to the popularity of the Internet and its low cost and low cost for data transmission, _ develops a network for voice transmission domain ❿ *, ie Internet Voice _ (Vdceoverlmemet ; for) technology.

VoIP technology mainly divides the continuous voice data into small packets, and then uses the Internet Protocol (Intemetpr0t0c0l; IP) technology to transmit small voice packets to replace the traditional method of transmitting voice using telephone lines. Moreover, with the increasing frequency and the maturity of related technologies, the application environment of V〇Ip technology is becoming more and more mature, and various electronic devices supporting VoIP technology are becoming more and more popular, for example: v〇Ip Lu " tongue du 1, HP phone Gateway, Voff switch and wireless internet phone (wi-Fi)

Phone) and so on. In these electronic devices supporting VoIP technology, a γ〇ΐρ module can be provided to provide various functions of VoIP. The ν〇ΙΡ module includes a first processor (for example, a Reduced Instruction Set Computing (RISC) processor) for executing a communication control protocol (for example, η·323, SIP (SessionInitiation Protocol) , MGCP, Megaco (Media Gateway Control Protocol), etc., network protocol (such as · TCP, UDP, IP, ICMP, SSL, SSH, 1261455 HTTP and ARP, etc.) and other call related functions, and _ second processing The device (for example, Digital Signal Processor (DSP)) is responsible for processing audio signal compression related functions. In addition, in the wireless v〇IP communication device (for example, Wi-Fi Phone), there is also a wireless communication module to provide wireless communication. The VoIP module or the wireless local area network voice over Wireless Local Area Network (VO WLAN) module with integrated wireless communication function is one of the important items that can be sent to the exhibition. The so-called Han module is composed of WLAN and # The emerging application technology of VoIP, which is a combination of two popular smashed chickens, is simply to implement VoIP calls in a WLAN environment. However, each manufacturer will use its VoIP module or V〇WLAN module. Provide a specific module control interface, thus limiting the development speed of related products in other V〇Ip related products. In other words, in the development of V〇IP related equipment, if Wei chooses a V of a certain manufacturer IP modules must use their designed control interface to develop products. Therefore, if the products with similar functions are different because of product separation or risk dispersion or other factors, the V〇IP module produced by the manufacturer is It is impossible to use the development experience of similar functional products to accelerate the development of new products. Therefore, if it is able to provide a common control communication interface for each medical module, for the development of v〇Ip related equipment In terms of manufacturers, it can have a large space in product design and VoIP. [Invention] In the above, the main purpose of the present invention is to provide a network voice t-mode, and II to substantially solve the problems of the prior art.

The network voice communication module disclosed by Ben Maoming enables the terminal device to utilize the AT 1261455 instruction set as a standard control interface. The difficulty of the network voice communication of the invention can be based on the VoIP module or the v〇 WLAN module, without being limited by the communication interface of the upper layer, and the sex is In order to improve the above-mentioned purposes, the Japanese-style bribe scale voice communication module, ^^ through the network to establish a _ knot of Wei, including: - scale, 'and, command analysis module and a processing module . Network Link Module == Call for network connection. The instruction parsing module can receive the control command from the external = sub-acceptance to the corresponding control message. And mixed with the network model 姊 解 解 组 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ , the network communication protocol and other related to the call: function, the device, the selective _ and the solution _ in the link network transmission wheel processing can be a digital signal processor. The group can also be a single-processor, responsible for executing the processing module, and then the age-resolving pool can pass the continuous-age command. This connection interface can be a standard serial interface, such as a male or a universal serial bus. The RS_232 interface 1261455 is controlled by the AT command of the international electric material communication module, or the system is recommended. Deaf people may also be compatible with the definitions defined by the two standards. By using the embodiment of the present invention to apply to a terminal device, the standard control interface of the network voice group can be used, that is, the gentleman sends the user to dial the IP network on the terminal device. Road phone, send ^: two true function. Furthermore, at the time of product development, the developer can customize the network voice communication module according to the principle of the present invention according to the market, instead of reading the communication interface of the upper layer, thereby simplifying the complexity of product development. And improve development efficiency. Further, the features and implementations of the present invention will be described in detail with reference to the preferred embodiments of the present invention. [Embodiment] First, the main idea of the present invention will be clarified. In this case, the I command set (AT conimand set) is applied to the V〇Ip module or the V〇WLA group, so that it can accept the control of the AT command, thereby achieving the call to the V〇Ip phone and the network. Road service settings and VoIP or v〇 WLAN module settings. The contents of the present invention will be described below with reference to the specific embodiments, and are illustrated by the accompanying drawings. The symbols mentioned in the description refer to the schema symbols. 1 is a network voice communication module according to an embodiment of the present invention. The network voice communication module 100 mainly includes an instruction parsing module 11 , a network connection module 120 , and a processing module 130 . 1261455 The command parsing module 11G can be connected to other applications or modules 200 to receive and parse AT commands from other applications or modules to generate - control messages. This AT command can be an existing slave command (for example, by the International Telecommunications Organization Standards Department (Intemati〇nal Tdec〇mmunicati〇n gamma (10) _

Telecommunication Standardizaiza〇n Sect〇r; ιτυ_τ) recommended standard – instructions defined by V.25ter), or AT commands for mobile communication module groups for controlling Global System for Mobile Communication (GSM) (Example: instructions defined by the GSM 07.07 standard). Furthermore, the AT command can also be a compatible at command defined by the above two standard extensions. The network connection module 120 is configured to provide a network connection function and transmit a packet through the connection network. The network connection module 12 can be a network module (for example, a B-type network module, etc.) or a wireless transceiver module (for example, a radio frequency transceiver module, a Bluetooth wireless transceiver module, and a wireless device). Regional network (WLAN) transceiver module, or 802.Ηχ standard developed by the Institute of Electrical and dectronics engin_ φ EEE (eg 802.11a standard, 802.11b standard, 802.11g standard, 802.11) h standard, 802.1 standard, or two or more 802.11 series standards, etc.) The same series of wireless transceiver modules, etc.). The processing module 130 is connected to the command parsing module 110 and the network connection module 120 to receive the control message from the command parsing module ι10 and transmit the control status to the link network via the network connection module 120. Hey, by means of the connection network 3 to establish a communication connection. The processing module 130 has a first processor 132 and a second processor 134 therein. 1261455 This first processing is 132' to perform communication control protocols (eg: h.323, SIP, MGCP, Megaco, etc.), network protocols (eg · Tcp, UDp, IP, ICMP, SSL, SSH, HTTP) And other functions related to ARP, etc.). Here, it can be a general purpose processor. Among them, communication control protocols (such as: H.323, SIP, MGCP, Megaco, etc.) are the rules for controlling the establishment of calls - Arfr is used to process audio, that is, the second processor I34 is used to process audio. The function of compression and decompression of audio, in order to reduce the bandwidth requirement of network 3 transmission. Thus, it can be a digital signal processor. However, the second processor 134 can also be executed by the first processor 132 in a software simulation manner. That is to say, this processing module can be a single general purpose processor. The buckle parsing module 110 can accept an external incoming AT command through a connection interface, as shown in FIG. 2 . The connection interface 112 can be a standard serial port # "面', for example, an RS_232 interface or a universal serial bus (Universal Serial, USB). For example, assuming a voice communication module according to an embodiment of the present invention The network connection module in the group is a WLAN module (the network voice communication module can be called a VoWLAN module at this time), and the connection interface adopts the Rs_232 interface. When a VoIP network phone is to be dialed, the application or module connected to the WLAN module can be transmitted through the RS-232 interface, ATD+1 812 555673; 〇K,, the instruction (the representative is dialing The electric machine gives the +1812555673 this phone number"). The AT command parsing module 10 1261455 group, after receiving this command, parses the command according to the pre-set network service settings; in other words, assumes that the SIP protocol is used. As a call control protocol, the received command is converted into a SIP message, as follows: INVITE sip:+1812555673@zcom.com SIP/2.0

Via: SIP/2.0/UDP pc33.zcom.com; branclp=z9hG4bK776asdhds

Max-Forwards: 70

To: Bob <sip:+1812555673@zcom.com>

From: Alice <sip:+1812555666@zcom.com>;tag-1928301774

Call-ID: a84b4c76e66710@pc21 .zcomxom CSeq: 314159 INVITE

Contact: <sip:+1812555666@pc21.atlanta.c〇m>

Content-Type: application/sdp Content - Length: 142 Then 'this SIP message will be transmitted through the WLAN module, and the call connection will be completed after several times of connection, so that the call can be started. Briefly, if an embodiment of the present invention is applied to an action, the VoIP mobile communication module is replaced by the VoIP communication module of the embodiment. However, the mobile communication device can make the original GSM lineage __ control interface That is, using the red age set defined by GSM as the standard control interface of the network voice communication module, the user can perform the communication functions such as dialing the IP telephone, sending the text message and fax. In this way, when developing new products, it is possible to replace the non-network voice communication module according to market demand (4) without significantly changing the communication interface with the upper layer, thereby simplifying the complexity of product development and improving ^^

Module 1261455 Wei Zhonglin Caiteng for the above-mentioned merits: x (four) (four) touch the Guan Lin Lin above H is not two soil two: any familiar with the like, who does not leave: inside, when the object (10), the hair 3 = Wai This manual, the application of the special _ define the scales. "Side view" [Simplified description of the schema] Outline: Section:: 3, Saki, Invention - Summary of the first party 2 = Description of the VoIP voice according to another embodiment of the present invention [Key element symbol description] 100 · ·····. _...1 110 ·· 112 ··...... know 7 analysis module 120 ······ 130 ······ .......... ........... 132 ...... 结^ 134 ·· 200 ··································································· Or module 12

Claims (1)

1261455 = is one of the AT commands for controlling the mobile communication module, one of the existing 7. and the compatible AT commands. The 6th Talk about the Internet Voice Communication Module, the control of the gamma command is determined by the Global Mobile Communications Secret (GSM) standard. 8. The AT Directive as defined in the scope of patent application is defined by the State. 6 of the network voice communication modules, wherein the intercommunication group (ITU.T) recommends the standard of the network voice communication module described in item 6 of the patent scope, wherein the compatibility is = The order is defined by the GSM standard and ITU_T recommendations. The network voice communication module of the first aspect of the invention, wherein the network connection module is a network module. For example, the application is to turn over the network voice access group described in item H), wherein the network module is an Ethernet module. 12. The network voice communication module of claim i, wherein the network connection module is a wireless transceiver module. 13. The VoIP module according to claim 12, wherein the wireless transceiver module is an RF transceiver module, a Bluetooth wireless transceiver module, a wireless area network transceiver module, and - One of the wireless transceiver modules of the same series of 802.11χ standards developed by the Electronic Engineering Society. 14. The application of the network voice communication module described in the section of the special fiber package includes: a connection interface connecting the instruction analysis module; 14 1261455, wherein the instruction analysis module can receive through the connection interface The AT command from the outside. 15