pstn calling

============================================== View hardware configuration # Dahdi_hardware==============================================View Dahdi Service ConfigurationMore/etc/dahdi/system.confShow the following content, obviously less my PSTN card configuration# Global DataLoadzone = usDefaultzone = usRebuilding the Dahdi service configuration#dahdi_genconfView Dahdi Service Configuration again# more/etc/dahdi/system.confShow# autogenerated by/usr/

1. Introduction The Public Switched telephone network (switched telephone network or PSTN) is a circuit-switched network for global voice communications, the largest network in the world, with a population of about 800 million.The public switched telephone network was first established by the telephone invented by Bell in 1876. The PSTN has gone through the phase of magnet exchange, air separation, program-

At the request of the dynaguy brothers, I have attached a relatively complete experiment to colleagues who are still exploring: (There are some problems with the 2.0beta experiment, so I will demonstrate it with the most stable 1.2.3) In this test, we did not discuss the issue of using the SIP Trunk directly to connect other sip servers without board installation to enable the SIP users to make external calls. This article is only used to discuss questions about using the fxo card to test intern

If you want to create a new speech policy, follow these steps. If you want to edit the speech policy, see Modify speech policies and configure related steps in the PSTN usage record. Attention: Each speech policy must have at least one associated PSTN usage record. To view a list of all PSTN usage records and their properties provided in

============================================== View hardware configuration # Dahdi_hardware==============================================View Dahdi Service ConfigurationMore/etc/dahdi/system.confShow the following content, obviously less my PSTN card configuration# Global DataLoadzone = usDefaultzone = usRebuilding the Dahdi service configuration#dahdi_genconfView Dahdi Service Configuration again# more/etc/dahdi/system.confShow# autogenerated by/usr/

To create a function:format:Create or Replace function func ( parameter parameter type )Return numberIsBegin-------- business logic ---------End;--Create a functionCreate or Replace functionFunc (DNO Number)return Number isT_max Number;begin Select Max(SAL) intoT_max fromEMP TwhereDeptno=DNO; returnT_max;End ;--examples of calling stored procedures and calling functions (differences)DeclareT_maxsal Numbe

DEBUG Error Symptom alert run-time Check Failure #0-the value of ESP is not properly saved across a function call.This was usually a result of calling a function declared with one calling convention with a function pointer declared withA different calling convention release version of the application disappears without any information. C # and C + + both explicit

PROCEDURE find_by_isbn ( in P_ISBN VARCHAR), out p_title VARCHAR (255)) BEGIN SELECT title to p_title from books WHERE ISBN = p_isbn; end$$ DELIMITER ; The find_by_isbn() accepts parameters:the first parameter is ISBN (in parameter) and second are title (out parameter). When you pass the ISBN to the stored procedure, you'll get the title of the book, for example: 12 call find_by_isbn (' 1235927658929 ', @title); SELECT @title;

Summary of calling WCF in PHP and summary of calling wcf In the third week of the new job, I spent more than three years on. Net. Suddenly, I made a sharp turn in PHP, drifting over the bend, and the speed was 180. Due to data integration, you have to use PHP to call WCF in the project. There is little or no relevant information on the Internet. I posted a post in phpChina and no one has returned. It seems

Local IIS testing, Post calling interface, iispost Calling Interface I have recently learned three methods to call interfaces: POST, Socket, and Webserivce. I just wrote the POST method today, so I will share it with you. Thank you for your advice. Public string strResult = "";Protected void Page_Load (object sender, EventArgs e){MyResponseList ("sent successfully ");}Public void MyResponseList (string Char

Mysql event enabling and calling, mysql event calling Check whether the event is enabled Copy codeThe Code is as follows:Show variables like 'event _ schedount '; 2. Enable event Copy codeThe Code is as follows:Set global event_scheduler = on; 3. Create a stored procedure Copy codeThe Code is as follows:Delimiter //Create procedure test ()BeginUpdate project set create_time = now ();End; 4. Create

initialized, so its value is also uncertain. Here, we will summarize the following:1) In C ++, the constructor allows default parameters, which greatly reduces the need for calling constructor to reuse code.2) If you only reuse the code of another constructor for one constructor, you can extract the public part of the constructor and define a member function (private is recommended ), then you can call this function in every constructor that requires

Javascript: traversing the prototype chain, calling stack, and scope chain In JavaScript, there are three common chain structures: prototype chain, call stack (Call StackScope chain. This article does not want to talk about the basic knowledge of these concepts, but rather shows how to traverse the three chain structures to deepen understanding. Traverse prototype chain In JavaScript, any object has its own prototype chain. A prototype chain consist

{Code...} first returns a count function to return the number of database entries. Return the correct value when calling this function directly. {Code...} but if it is called in this way, it will be all 0. Why? Are there any differences between the two methods? What should I do if I call it in the model? First, this is a count function that returns the number of database entries. Return the correct value when