Category Archives: Asterisk

In this article, I will provide examples of changing music on hold, force music on hold, and more.

Let me give you an example of setting call forwarding in Asterisk.
For example, on Grandstream IP phones, you can enable redirection by the functions of the phone itself, but if the phone is far away and there is no way to do it on it, but it is possible to log in using the SIP number of this phone, then to activate call forwarding, you can make a voice menu when dialing a certain number, for example, *21 to activate call forwarding and enter the phone number to which calls will be forwarded, and *22 to cancel call forwarding.

I noticed once an error in the logs /var/log/syslog:

Once on one Asterisk server I noticed the following error:

I will describe an example of setting up recording telephone conversations in Asterisk, first of all, make sure that the necessary modules are loaded.

In the test, I connected a Chinese TDM410P board with four FXO ports (red) to the PCI slot of the turned off Ubuntu server.
For convenience, immediately switch to the root user:

To determine the number from analog lines, you need to specify in the context for each Trunk channel Dahdi:

I will give an example of a quick installation of Asterisk on Ubuntu Server.
I will install it on versions 14.04 LTS and 16.04 LTS.