Asterisk command progress Progress() – Asterisk Command – Used to message for early media This application generates a signal that in-band progress information is provided to the calling channel. This is also known as “early audio” and “early B3”. Early audio also needs to be supported by the carrier in order to work for the … Read more
Convert audio files for Asterisk Converting to sln format Starting from Asterisk 1.2.0, the .sln (SLINEAR) format seems to be the preferred format. To convert wav file to sln, use the following command: sox foo-in.wav -t raw -r 8000 -s -w -c 1 foo-out.sln Note that sox v14.3.0 and above (installed in Ubuntu 9.10), the … Read more
asterisk 1.4 installation with libpri and DAHDI Update the system before start installation and reboot the system. yum -y update Install MySQL yum -y install mysql-server /etc/init.d/mysqld start chkconfig mysqld on Install Pre-Install Packages yum -y install kernel-devel make bison flex gcc-c++ gcc httpd php php-cli php-mysql php-pear php-gd curl sox ncurses-devel openssl-devel mysql-devel … Read more
Sample IVR to say IP address using CURL in Asterisk Installing the cURL Module Installing cURL is easy. If it was not on your system when you last compiled Asterisk, after installing it you’ll need to recompile Asterisk so that it can locate the cURL dependencies and compile the func_curl.so module. On CentOS: $ sudo … Read more
asterisk CURL function Asterisk’s ability to retrieve and store data to realtime backends is most commonly associated with relational databases. One of the lesser-known realtime backends available in Asterisk is cURL. Using this realtime backend makes Asterisk use HTTP GET and POST requests in order to retrieve data from and store data to an HTTP server. … Read more
Asterisk Internal Database Asterisk comes with a database that is used internally and made available for Asterisk programmers and administrators to use as they see fit. Asterisk versions up to 1.8 used the Berkeley DB, and in version 10 the project moved to the SQLite3 database What is the Purpose of the internal database in Asterisk The database really … Read more
SPEECH RECOGNITION WITH GOOGLE CLOUD API ON ASTERISK 15 In this article, we will try to explain the implementation of Google Speech Recognition with asterisk 15. We will start from installation of Asterisk 15. The first step we must to do, is install the Development Packages : # yum -y groupinstall ‘Development Tools’ The next … Read more
Asterisk file and directory structure The directories used by Asterisk can be configured in the asterisk.conf configuration file. Here we’ll describe what each directory is used for, and what sub-directories Asterisk will place in each by default. Below each heading you can also see the correlating configuration line in asterisk.conf. Asterisk Configuration Files astetcdir => /etc/asterisk This location … Read more
PJSIP installation in asterisk 13 is now easier Asterisk 13.8.0 will come with a new option for enabling PJSIP functionality. This functionality is called bundling and comes courtesy of a community member, George Joseph, who you can also thank for such PJSIP additions as wizards for configuration and the PJSIP_HEADER dialplan function. Before we talk … Read more
Application Modules in Asterisk Dialplan applications are used in extensions.conf to define the various actions that can be applied to a call. The Dial() application, for example, is responsible for making outgoing connections to external resources and is arguably the most important dialplan application. Name Purpose Popularity/Status app_adsiprog Loads Analog Display Services Interface (ADSI) scripts into compatible analog phones … Read more