Welcome to the Asterisk Knowledge Base and Tutorial
Differences Between HTTP Servlets and SIP Servlets
SIP servlets differ from typical HTTP servlets used in web applications in the following ways: HTTP servlets have a particularRead More »
SIP Vs SS7 Protocal : SIP and SS7
Session Initiation Protocol (SIP) and Signaling System 7 (SS7), both are the common protocols used for transmitting voice across networks.Read More »
Session Initiation Protocol :SIP Application layer protocal
The Session Initiation Protocol (SIP) is a signaling communications protocol, widely used for controlling multimedia communication sessions such as voiceRead More »
Better SIP Security on Asterisk: How To Secure Asterisk
Seven Easy Steps to Better SIP Security on Asterisk: 1) Don’t accept SIP authentication requests from all IP addresses. UseRead More »
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib /mysql/mysql.sock' (2)
I tried the following steps: Log in as super user or use sudo Open /etc/mysql/my.cnf using gedit Check the allRead More »
ISDN hangup cause codes
ISDN hangup cause codes provide information as to why a call has been terminated. The list of hangup cause codesRead More »
Asterisk Dialplan varriable
Using $ If you want to set a global variable containing the another variable name in the [globals] category of extensions.conf youRead More »
Asterisk DialStatus Channel Varriable
Asterisk channel variable DIALSTATUS Contains a text string signifying result of the last dial attempt: ANSWER: Call is answered. ARead More »
Asterisk cmd MYSQL
This is an ADD-ON of asterisk, is not installed by default and must be downloaded and installed with the asterisk-addonsRead More »
Asterisk queue callback
SQL Table Structure If using the dialplan below, put the following table into a database called ‘acd‘. CREATE TABLE `bit_callers`Read More »
Asterisk : queues.conf
general ; ; Global settings for call queues Persistent Members ; Store each dynamic member in each queue in theRead More »
Backup and Restore Mysql database table
Dump and restore from .sql Dump mysqldump db_name table_name > table_name.sql Restore mysql -u <user_name> -p db_name mysql> source <full_path>/table_name.sqlRead More »
Setting to Limit SIP channels
You have the 6 channels, and basically you have 6 calls going on… Now when you hang up the doRead More »