Skip to Content
Linux Networking Cookbook
book

Linux Networking Cookbook

by Carla Schroder
November 2007
Beginner
642 pages
15h 43m
English
O'Reilly Media, Inc.
Content preview from Linux Networking Cookbook

5.7. Getting Real VoIP with Free World Dialup

Problem

You want to get your Asterisk server up and running and connected to the outside world as quickly as you can. So, you want to start off with some basic VoIP services and start making calls over the Internet.

Solution

Connect your Asterisk server to Free World Dialup (FWD).With Free World Dialup, you can make free calls to other FWD users, and to the users on the networks that FWD peers with.(A notable exception is the party pooper Vonage, which does not wish to associate with other VoIP networks.)

First, go to Free World Dialup (http://www.freeworlddialup.com/) and sign up for an account. When you receive your welcome email, log in and change your password.

Then, go to the Extra Features link and enable IAX because you'll be setting up an IAX trunk for FWD.

Now, fire up your trusty text editor and configure /etc/asterisk/iax.conf and etc/asterisk/extensions.conf. We'll use /etc/asterisk/sip.conf and /etc/asterisk/voicemail.conf from Recipe 5.5.

In these examples, the FWD login is asteriskuser, password 67890, FWD phone number 123456. Incoming FWD calls are routed to Ellen Ripley at extension 250.

 ;;iax.conf;; [general] context=default port=4569 bindaddr=0.0.0.0 disallow=all allow=gsm allow=ulaw allow=alaw register => 123456:67890@iax2.fwdnet.net [fwd-trunk] type=user context=fwd-iax-trunk auth=rsa inkeys=freeworlddialup ;;extensions.conf;; [general] autofallthrough=yes clearglobalvars=yes [globals] CONSOLE=Console/dsp ;free world dialup ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

Linux Networking Cookbook

Linux Networking Cookbook

Gregory Boyce
Linux Security Cookbook

Linux Security Cookbook

Daniel J. Barrett, Richard E. Silverman, Robert G. Byrnes

Publisher Resources

ISBN: 9780596102487Errata Page