My Little IAXy

My IAXy arrived today. This is a little blue and orange box, about the size of a deck of cards, that lets me connect a regular old telephone set to my Asterisk phone system.

The IAXy has an RJ-45 Ethernet jack and a RJ-11 phone jack: I plug the Ethernet into the network (which gets it to the Asterisk server) and the phone into the phone jack, and I’ve done all my hardware setup.

Software setup is a little more cumbersome than with the Sipura SPA-2000 that we use here for the same purpose (albeit using the SIP rather than the IAX2 protocol): while the Sipura unit has a friendly web-based configuration tool, the IAXy requires compiling a small Unix utility which is then used to provision the IAXy, which has already obtained an IP address via DHCP. This went quickly and easily, though, and wasn’t really a problem. Otherwise, all that was required was some small additions to the Asterisk iax.conf file. The installation guide covers this in just enough detail.

On the networking side, all I needed to do was open up UDP port 4659 in the firewall to allow access via IAX2 to the Asterisk server (I forgot to do this originally, and nothing was working at all).

Twenty minutes after I started, I was in business: picked up the phone and got a dial tone and phoned home and Catherine sounded like she was in the next room.

Next step is to take little IAXy home, where, if all goes according to plan, he will become the gateway to the Asterisk system from there.


Johnny's picture
Johnny on December 14, 2004 - 20:39 Permalink

all I needed to do was open up UDP port 4659 in the firewall to allow access via IAX2 to the Asterisk server”

Do you have any idea how silly that sounds in a Star Trek sort of way?

Peter Rukavina's picture
Peter Rukavina on December 14, 2004 - 23:41 Permalink

I needed to emit a low-level tachion pulse as well.

oliver's picture
oliver on December 14, 2004 - 23:46 Permalink

That’s “tachyon,” you sub-dweeb!

Peter Lux's picture
Peter Lux on December 17, 2004 - 21:02 Permalink

Is the Sipura SPA-2000 still being sold? The link to the pulver website works but it doesn’t show up as a purchase option or in their product listing.

Will it accept a com badge feed?

Randy's picture
Randy on December 26, 2004 - 19:24 Permalink

What are your thoughts on the Sipura SPA-2000 versus the IAXy? I’m running an Asterisk server for home use. All of the documentation I’ve found on IAX versus SIP seem to point to IAX being more robust under heavy load, but that won’t be a problem for me. At the moment, I’m just seeing the price tag of ~$80 for the 2 port SPA-2000 versus $99 for a one port IAXy. Curious what your impressions are after using both?

Sebastien Bilodeau's picture
Sebastien Bilodeau on January 25, 2005 - 17:23 Permalink

I’d like to know also. I ordered a S100U before seeing your article no.1794 !! Too bad… Should I not waste any time with the S100U and order a IAXy right away? I’d like to know how the IAXy compares to the SPA-2000 in the real world.

Peter Rukavina's picture
Peter Rukavina on January 25, 2005 - 17:40 Permalink

I haven’t made enough use of the IAXy to be able to accurately assess it relative to the SPA-2000 yet. I’ll update here when I have.

Sebastien Bilodeau's picture
Sebastien Bilodeau on January 26, 2005 - 15:37 Permalink

Thanks! Until then, I found this site, which I’d like to share with you. It compares SIP vs. IAX. Cheers!

Sebastien Bilodeau's picture
Sebastien Bilodeau on January 28, 2005 - 00:15 Permalink

Randy, you can get the IAXy for the same price, 80$. Follow the link!