Strategies for an IPPBX on a Virtual server


I’m doing lots of research on how to go about it; …AND I need to learn about servers and IPPBXs… :slight_smile:

Which is best for a remote hosted Virtual Server, of the various *, openpbx, etc? I read on that someone is running * without a ztdummy… So, what about that timing problem?

On a tiny Asterisk/etc, with almost no traffic, can a VPS run a bit of sendmail and http, etc? Or must * be left fully alone?

I’m also interested in FoIP, on international DID’s… Is one better than the other? It looks like T-38 should be an effective answer: when will any IPPBX fully implement it? Do I understand correctly that ultimately an IPPBX should be able to fax overseas to/from a T.38-compatible ATA connected to an old POTS fax machine?

Or are DIDs and terminations available with their own T.38 compatibility? Is IAX better than SIP?

Lots of newb questions, I know! I’m just at the pre-planning stage, investigating options.

Thanks for any opinion.


Hi All,

What is the maximum amount of FreePBX VServers can I expect on the following configuration?

Dual Processor Dual Core Opteron 2218 - 2.66GHz
4 x 1MB cache
2 GB DDR2 Registered 667
2 x 250 SATA II

OS: Ubuntu / CentOS
Openvz which is based on Virtuozzo

Each FreePBX VServer will have a maximum of 10 extensions.



Many issue with not having ZTdummy
the host box must be setup to run asterisk as a guest
what you depends on the hardware the call type (recording / conference calls take CPU)
Is the website heavy on code or is lean and clean…

look at

Hi all,

we are running 6 vservers containing asterisk 1.2 with freepbx in an productive enviroment.

The asterisk vserver host machine is an ubuntu dapper 6.06 install, with vserver patches for Linux version

Hardware : average hosted 64bit Athlon with 2 Megs of RAM and RAID 1

We have included the zaptel modules in the host kernel.

Every asterisk vserver guest is also running ubuntu dapper 6.06.

System works fine for us !

Greetings from Germany

  • Martin