Submitted by powerpbx on Sun, 07/17/2011 - 16:08
Submitted by powerpbx on Thu, 06/02/2011 - 12:29
These are my notes on how I replace TFTP with FTP for Aastra SIP phone configuration files on a Redhat Enterprise Linux server. With the TFTP port exposed to the internet and no IP restrictions for remote phone configuration the directory is wide open. This makes it easy for someone to obtain extension passwords.
Submitted by powerpbx on Sun, 05/22/2011 - 17:52
Submitted by powerpbx on Mon, 04/18/2011 - 15:02
This guide is a reference on how to create a RedHat Enterprise Linux v6 template for OpenVZ.
There are other ways and variations on how one can go about this. The method I will present here is the way I do it. In this case I used the recompiled from source distribution known as Scientific Linux. This guide should work equally well for any distribution including Redhat, CentOS etc. It also works for v5 with a few minor changes or omissions which should be obvious. This guide was used with the 32bit distribution.
Submitted by powerpbx on Tue, 01/26/2010 - 12:21
With the recent introduction of patch 3 for Aastra XML scripts 2.2.1 we now have scripts that work on Asterisk 1.6 as well as 1.4. The installation procedure has also been greatly simplified. There are at least two bugs in patch 3 that I am sure Aastra will eventually fix but for now I will provide t
Submitted by powerpbx on Thu, 10/09/2008 - 15:29
External SIP or in other words SIP through firewalls and routers or more accurately SIP traversal through Network Address Translation (NAT) is arguably one of if not the most common problem people face. SIP is notorious for this. This little article is my attempt to provide a simple no nonsense method of finding and fixing these problems. Ideally before they ever happen. To keep it simple I will assume everything on the PBX itself is configured correctly.
Submitted by powerpbx on Tue, 06/03/2008 - 19:42
Here are a few advanced topics covering some things that can be done to any FreePBX or strictly Asterisk distribution. These would be things one might be interested in doing beyond the standard Linux-Asterisk-Freepbx installation.
Submitted by powerpbx on Sun, 05/25/2008 - 17:39
In previous posts I showed how to auto-provision and configure Aastra phones by manually installing XML scripts. Aastra has released RPM packages for Trixbox that combines everything and adds new features as well as mDNS so the phones can find the TFTP server even if you don't have a DHCP server capable of assigning it. The script won't install unless mDNS is installed.