Skip to Content
Practical VoIP Using VOCAL
book

Practical VoIP Using VOCAL

by David Kelly, Cullen Jennings, Luan Dang
July 2002
Intermediate to advanced
528 pages
15h 13m
English
O'Reilly Media, Inc.
Content preview from Practical VoIP Using VOCAL

Installing and Running a UA from Separate Hosts

This is not as complex as you might think. All you have to do is copy some files from your allinone machine to another host. Besides the UA files, you will need the sound files from the /vocal1.3.0/sip/ua/Tone directory to enable dial tone and ring-back. In our lab, we used cheap headsets and microphones. The UAs by themselves support only the free G.711 codec .

Tip

These instructions show you how to distribute the UAs over additional hosts. See Chapter 3 for information about distributing VOCAL’s servers over several hosts.

Local Area Network

The simplest setup involves two Linux boxes running the same version of Linux Red Hat . To hear your call, you need a basic sound card and some form of microphone and speaker combination for both machines.

  1. On the remote machine, from /usr/local, type mkdir vocal and from vocal, mkdir bin.

  2. From /usr/local/vocal/bin, copy the UA and ua1000.cfg files to the /usr/local/vocal/bin directory on the other machine.

  3. From /usr/local/vocal1.3.0/sip/ua, copy the complete Tone directory to the same directory on the other machine. Remember, /usr/local/vocal contains the binaries; /usr/local/vocall.3.0 contains the source code.

  4. Following the instructions from the earlier section, "Testing Your Installation,” register both users and make calls.

Wide Area Network

If you have a broadband Internet connection with a fixed IP address, you can send the ua and Tone files to someone else who also has broadband and is ...

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

Switching to VoIP

Switching to VoIP

Theodore Wallingford
VoIP Hacks

VoIP Hacks

Theodore Wallingford
Voice Over IP

Voice Over IP

Uyless Black
Securing VoIP

Securing VoIP

Regis Jr (Bud) Bates

Publisher Resources

ISBN: 0596000782Catalog PageErrata