The Asterisk has several options allowing automatically send DTMF (tone signals, most often used for extension dialing an extension number or voice menu navigation) after answering the call.

Automated DTMF

Proxmox 3.3 Forwarding of USB devices to openvz IMPORTANT: If you connect to a guest more than one device, it is better to directly edit the OpenVZ container config without using vzctl. The reason is that when using the vzctl DEVICES option in the config file is overwritten and all […]

Forwarding USB devices to the openvz guest

Quick how to to install and configure DNS resolver under CentOS for users from LAN: # yum -y install bind bind-utils # chkconfig named on Edit /etc/named.conf: // // named.conf // // Provided by Red Hat bind package to configure the ISC BIND named(8) DNS // server as a caching […]

CentOS and DNS resolver: Quickstart

When you create a virtual machine with access to ssh in Microsoft Azure, you can download the public key (user of the system will be implemented from the entrance to the virtual machine). But Azure requires to provide a key in format CER or PEM, while ssh-keygen creates a default […]

SSH key for Azure

  root@proxmox:/# diff -Naur /usr/share/pve-manager/ext4/pvemanagerlib.js.original /usr/share/pve-manager/ext4/pvemanagerlib.js --- /usr/share/pve-manager/ext4/pvemanagerlib.js.original 2013-08-20 08:07:54.000000000 +0100 +++ /usr/share/pve-manager/ext4/pvemanagerlib.js 2013-08-21 18:16:22.417007719 +0100 @@ -447,22 +447,7 @@ success: function(response, opts) { var data =; - if (data.status !== 'Active') { -{ - title: 'No valid subscription', - icon: Ext.Msg.WARNING, - msg: PVE.Utils.noSubKeyHtml, - buttons: Ext.Msg.OK, […]

Patch for Proxmox 3.3 which removes «No valid subscription»

Assume that output of: wget -S --spider like this: HTTP/1.1 200 OK Date: Wed, 19 Nov 2014 08:47:22 GMT Server: Apache/2.2.15 (CentOS) DAV/2 PHP/5.4.30 mod_ssl/2.2.15 OpenSSL/1.0.1e-fips X-Powered-By: PHP/5.4.30 Target: remove the version information and the programs themselves:

Remove software tags from apache response header

If you have configured in Asterisk (or you fron-end FreePBX) sip trunk provider of VoIP, but outbound link is not working, and in output: