Author Archives: wizzy

Custom images on cisco 79XX telephone sets

To be able to add images on devices, you must already have a TFTP-Server and of course the necessary .xml configuration files.

Every cisco telephone set has it’s own demands. The image format must be on .PNG with specific dimensions

Telephone set Image dimensions (pixels) Thumbnail dimensions(pixels) TFTP Folder
7906/7911 95 X 34 23 X 8 /Desktops/95x34x1
7941/7961/7942/7962 320 X 196 80 X 49 /Desktops/320x196x4
7945/7965/7975 320 X 212 80 X 53 /Desktops/320x212x16
7970/7971 320 X 212 80 X 53 /Desktops/320x212x12

Continue reading

Asterisk alarm receiver

WARNING : This solution is not the best way to protect your property.

First of all, I am not a programmer so many of you will notice my elementary skills on coding. If you have anny issues or suggestions please contact me at info[at]wizzycom[dot]net

Some information about Ademco Contact ID.

Ademco Contact ID is a protocol that establishes communication between a a security system and a monitoring station . The security system sends a 16-digit code to the monitoring center and the monitoring station converts this to readable information.

Let’s see the sections of this 16-digit code :

1111223444556667

The monitoring station receives the code above ( not a real example, but it is easier to understand the sections ) : Continue reading

Cisco router initial configuration

There is no golden rule on this. Everyone has it’s own way to do a basic configuration on a cisco router. Here is mine.

Some routers are pre-configured by cisco. The first time that the router powers up, it will ask for a username and password which is always cisco/cisco. This is one-time-password. If you login from console and you don’t change this, then you will be locked out. In case of pre-configured router, I always erase the running configuration by issuing : Continue reading

How to install VDR on CentOS

VDR is an application that allows us to do video streaming using as source a DVB-S or DVB-T adapter. This guide was tested on CentOS 6.4 x64. I used VDR version 1.7.22 and version 0.5.2 of streamdev server plugin. A prerequisite is that the system must have installed a DVB adapter.

Let’s install some groups and packages

yum groupinstall "Additional Development" "Development tools"
yum install fontconfig fontconfig-devel freetype freetype-devel gettext gettext-devel libcap libcap-devel libjpeg libjpeg-devel

Continue reading