Category Archive: FreeSwitch

Apr 16 2015

Stop SOME SipVicious attacks from reaching your Asterisk, FreeSwitch, YATE, etc. PBX server

This tip was posted by user “infotek” on the FreePBX site but applies to all software PBX systems that use the iptables firewall. “infotek” wrote: By default the SipVicious scanner uses the ua : “friendly-scanner”. To block this ua, you can have iptables search the packet for that text. add the following line to /etc/sysconfig/iptables …

Continue reading »

Feb 25 2015

How to set up an alternate SIP port (other than 5060) using Webmin

One problem that some VoIP users are experiencing these days is that they have trouble connecting to their home Asterisk, FreeSWITCH, YATE, or other software PBX server, but only when using certain ISP’s.  One suspicion is that certain ISP’s that offer their own VoIP or traditional landline service attempt to mess with packets using the …

Continue reading »

Feb 04 2014

If you used the information from the article, “A possible way to thwart SIP hack attempts on your Asterisk (or other) PBX server”, please read this

If you took the advice in the article, A possible way to thwart SIP hack attempts on your Asterisk (or other) PBX server, please be aware that an important note has been added: IMPORTANT: Be sure to have a separate iptables rule (higher on the list than those above) that allows connections to port 5060 …

Continue reading »

Jan 13 2014

A possible way to thwart SIP hack attempts on your Asterisk (or other) PBX server

If you’ve had the problem of hackers trying to break into your Asterisk server, you probably know that you can use tools like Fail2ban to at least slow them down.  But why let them know you even have an Asterisk server in the first place?  Maybe you need to leave port 5060 open so that …

Continue reading »

Jul 13 2013

Asterisk on a Raspberry Pi – which distribution is best?

Portions of this article were UPDATED July 20, 2016, mostly to include information about Raspivo. To the best of our knowledge there are five projects that will allow you to run a PBX on a Raspberry Pi. They are: Asterisk for Raspberry Pi a.k.a. RasPBX Raspivo – Xivo on Raspberry Pi (site is in French, …

Continue reading »

Apr 06 2013

Not receiving some incoming Google Voice calls? Try increasing the priority

A page on the Asterisk Wiki entitled Calling using Google contains this bit of information about priorities: More about Priorities As many different connections to Google are possible simultaneously via different client mechanisms, it is important to understand the role of priorities in the routing of inbound calls. Proper usage of the priority setting can …

Continue reading »

Oct 25 2012

Yes, you can run FusionPBX and FreeSWITCH on a Raspberry Pi

By now most technically inclined folks have heard of the Raspberry Pi, the small $35 computer that can do big things. If you are going to buy one, just make sure you get one of the newer models with 512 MB of memory, rather than an older model with only 256 MB. But, you may …

Continue reading »

Oct 18 2012

Using YATE to overcome Google Voice issues in FreeSWITCH and Asterisk

If you have been less than thrilled with the Google Voice support in another software PBX, such as Asterisk or FreeSWITCH, you could try using YATE as a Google Voice Gateway.  It can be installed on either a separate server, or on the same server as your FreeSWITCH or Asterisk installation, however if you are …

Continue reading »

Sep 09 2012

Two things I wish you could do in Asterisk or FreePBX, or ANY free software PBX

I want to explain a problem that apparently exists in current implementations of Asterisk and FreePBX (and by extension, all distributions based on those pieces of software). Let’s say you have several extensions on your system and many, if not all of them, have a specific “trunk” associated with that extension.  It may be a …

Continue reading »

May 02 2012

Review of FreeSWITCH Cookbook by Anthony Minessale, Michael S Collins, Darren Schreiber, Raymond Chandler (Packt Publishing)

The FreeSWITCH Cookbook is the second book from Packt Publishing on the subject of FreeSWITCH, which in my opinion may someday soon be the “telephony software engine” that replaces Asterisk in popularity. I’ve previously reviewed the earlier book, FreeSWITCH 1.0.6, and this book builds on that one. If you know nothing at all about FreeSWITCH, …

Continue reading »

Older posts «

%d bloggers like this: