define pbx

What is ip pbx? Ip pbx is a complete set of technologies that can provide telephone calls through the IP data network. All sessions are transmitted over the network in the form of data. This technology not only includes advanced communication functions, but also provides enterprises with extensibility and reliability. Ip pbx can also be connected to a traditional

transmission allows users to access e-mail, fax, and paging messages through a phone or PC. Although this integrated Message Access Service is still not common, industry insiders who operate on IP Phone Networks believe that it will become an important service method in the next few years. Some IP phone manufacturers are currently developing products that can provide integrated messaging services. 1.3IP Videophone Another possible new application of IP Phone is to improve the video connection o

Today, with networks all over the world, digital communication is no longer a new concept. As an alternative to traditional PBX products, ip pbx (IP group telephone) is gradually forming a new generation of communication products that focus on traditional communication brain technologies and combine IP communication technologies and software technologies. In addition to the functions of traditional

In the case of Voip, we often encounter customer requirements for public-specialized functions. The general practice is to connect the FXO interface to the extension line. The customer calls in through the external line, hears the automatic operator, then dials to the VOIP extension, and then calls the IP address, however, this practice usually requires some vswitches. PBX has a type of group telephone. This is also the first time I have encountered

As the 3G era approaches and UC Unified Communication continues to rise, the continuous integration of various communication methods and methods will surely become a trend in the future. In the face of the current economic environment, enterprises urgently need to reduce operating costs and improve business efficiency, so as to enhance the competitiveness of enterprises. Through this economic storm, IP communication solutions will help enterprises operate. Yijing integrated IP-

I have a Cisco 3640 router with FXS, FX0, and E/M voice cards. Can I use a PBX (dedicated group switch) with this router? Can you provide an example to illustrate how to call different Cisco 2612 routers in other locations through the PBX vswitch on the MPLS network? First, there is no difference in MPLS. It is only an IP transmission network. Your 3640 router can be used together with the

Release date:Updated on: Affected Systems:Astium VoIP PBX Description:--------------------------------------------------------------------------------Bugtraq id: 57097Astium is a network telephone switch.Astium PBX 2.1 and earlier versions have multiple security vulnerabilities. These vulnerabilities allow attackers to bypass authentication on login pages through SQL injection, access them as administrators

Open source of SIP applications (proxy, PBX ,...) SIP Express Router (SER): Highspeed GNU sip proxy with a lot of features and a lot of ongoing development. homepage:Http://www.iptel.org/ser/. A really cool sip proxy-I like it! You can also take a look atDevelopment HomepageWith Web CVS. At the beginning you shoshould readAdmin GuideAndMailing lists Archive. Openser: A fork of the SIP Express Router, more development and new features. homepage:Http

Introduction To define a variable in the source file that is related to the line number, it is too slow to manually enter each time. This article describes how to use macro definitions to define variables related to line numbers. For example, we want to define a shape variable such as a_10 in the 10th line of the source code. use macro definition to accomplish

Enter the appropriate information to connect to the login. 5.6 Verify that you are really connected to Oracle Write an SQL statement to verify that the query can see the following effect, indicating that the connection was successful. 6, define the client environment variable Nls_lang Machines that do not have the environment variable configured use the Plsql client to insert Chine

than 8 digits.) Trouble, you can enter the usual oneself habit of short password can be) No need to configure "Quick recovery zone" The Oracle database provides a sample user Scott/tiger, which can be used to practice the user at all times. If you do not create the user at this time, you can later use the script to create the user allocating memory to an Oracle database

Tags: variable oracle define variable declare1. Define (that is, host variable)The main role of the host variable is to act as an alternative variable, a medium in which the host environment can interact with Oracle . When you define a host variable by define, you must specify the variable name and the value of the var

As we all know, in PHP (PHP 4 and later), we can use the function define () to define constants, for example: However, after PHP 5.3.0, in addition to using function define (), we can also use the PHP keyword const to define constants. For example: Although constants can be defined in both of these ways, what is the

#define是C语言中提供的宏定义命令, the main purpose is to provide programmers with certain convenience in programming, and to a certain extent, improve the efficiency of the program, but students often do not understand the nature of the command in learning, always create some confusion here, in the programming of the misuse of the command, To make the program run inconsistent with the intended purpose, or to read the program written by others, the results of the

1. # difference between define and typedef # Define is generally used to define constants and statement macro definitions and act as macro replacement during compilation. Of course, you can also complete a small part of the typedef function. Remember that it is only a small part. Typedef is used to declare a new type name for readability and variable definition.

ExtJS learning ------- Ext. define alias and slave name, two methods to define static methods, mixed attributes and other attributes (1) Ext. define alias and backup name Ext. onReady (function () {Ext. define ('user', {config: {name: 'zhang san', age: 23}, // use the alias: 'Alias _ user', // use the alternate name a

First, the constPHP5.3 Previously, const can only declare variables inside a class, 5.3+ allows variables to be declared externally, but cannot be evaluated with constants!Const one = 1; Const WORD = ' Hello World ';PHP5.6 Start, const supports numeric expressions, including numeric, string literals, and other constants, for constant definition. And more importantly, Const begins to support defining a constant array!Const one = 1; Const both = one * 2; Const ARR = [' A ', ' B '];It is important

[Switch] DEFINE introduction and multi-row macro definition in C language, define multiple lines [Go] DEFINE introduction and multi-row macro definition in C LanguageTo write a good C language, a beautiful macro definition is very important. Macro definition can help us prevent errors and improve code portability and readability. During software development, ther

How to define an abstract attribute example in java and how to define an example in java Preface This article mainly introduces the definition of an abstract attribute in java and shares it for your reference. I will not talk about it much below. Let's take a look at the detailed introduction: Abstract keywords are usually used for classes and methods to delegate the implementation of certain behaviors to s

Macro definition in many languages can see its shadow, C #, C++,c, and so on, especially the system API inside a lot of macro definition, looking very bluffing people. Reasonable use of macro definition, you can make your code look more standardized, more convenient, especially in certain places. Using a macro definition can also make your own code look tall with wood on it!This article was changed from http://www.cnblogs.com/ios8/p/ios-hong.htmlOn-line macro definition of iOS more, I summed up