Linux Operating System - Debian, Ubuntu, Fedora, Gentoo, Arch

If you have implemented Music on Hold on your asterisk box, you may want to listen to it, to know if it is working as you want, of course you can call to your IVR number and wait for the music on hold, but it is better if you create an extension specially designed to hear to music on hold.

This is how to do it, in the extensions.conf file add these lines in the context your extension is.

I have been trying to write something on the blog for a long time, it was a very busy month, and the next one will not be any different, but I can not live without my hobby, and yesterday I run into a weird problem, my two computers showed the time four hours ahead!, I looked for an easy way to sync them and stumbled upon this way.

Openntpd, and from its webpage:

OpenNTPD is a FREE, easy to use implementation of the Network Time Protocol. It provides the ability to sync the local clock to remote NTP servers and can act as NTP server itself, redistributing the local clock.

OpenNTPD is primarily developed by Henning Brauer as part of the OpenBSD Project. The portable version is made by Darren Tucker. The software is freely usable and re-usable by everyone under a BSD license.

The most common way to use an asterisk VoIP PBX is with an internal FXO card like Digium or Sangoma, but there are other ways, like using an external gateway like Quintum or Audiocodes to name just two of the options.

I am not an Asterisk expert, but I prefer the second aproach, as it may save CPU power on the Asterisk server, as the Analog to Digital and Digital to Analog conversion is now done in the external gateway instead of the Asterisk server.

Having said that, I will show you how to route calls to that external gateway, keep in mind that may be other ways to do this, and maybe better ways, but this is the one that worked for me.

I have been working these last days on an Asterisk over Debian, and I will be posting some tips I am learning about it, today I will post about how to record a voice message that can be used with the IVR menu.

The IVR (Interactive voice responce) is one of the most used PBX applications, and the best VoIP PBX (Asterisk) have a real good support of this feature.

There are some situations when you need to start a second X session on your computer.

If you are running KDE the solution is quite simple, just go to

K->Leave->Switch User

and if you are not using KDE, the solution is still easy :),

Hit ALT+CTRL+F2

and log in the new terminal window, now run inside it.

When trying to connect via ssh to a server, I got this answer from the server.

ssh_exchange_identification: Connection closed by remote host

If this happens to you too, first start looking if you are using this format to log in the server

ssh -l [existing-server-user ] [ip-of-the-server]

or

ssh [existing-server-user]@[ip-of-the-server]

Conky is broken after Arch Linux update/upgrade.

Today I have run

sudo pacman -Syu

And conky was updated to the latest version, after that it stop working, and when I run it from the console, the output was like this:

Conky: unknown variable ibm_temps
Conky: unknown variable ibm_fan