Win one of three new IAX phones!

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• I use IAX to connect Asterisk systems in different locations together. The reason I use IAX over SIP is primarily because it is easier to use when routing over the internet. I only ever have to worry about opening one port in my firewalls and it is easier to prioritize traffic by referencing that one port. I also use IAX trunking to cut down the bandwidth footprint when multiple channels are in use over one IAX connection. For me, IAX is easier to set up and easier to maintain.

• I use IAX mainly for remote offices and sites where we don't control the routing or firewalls, as it's very easy to traverse without any special configuration. Only one port needs to be opened and setup. So much win compared to SIP. Like Dave said above, it's easier for us to manage and setup IAX than SIP in most cases.

• I use IAX because it goes through NAT and firewalls.

  It also has some neat features like :
  zero config encryption - handy for shared wifi
  built-in link stats monitoring
  bandwidth saving 'trunking' mode
  Blocked in fewer countries/networks than sip

  I like IAX because the RFC has fewer pages than the _number_ of SIP/STUN/RTP RFCs

  I'd wear the Tshirt with pride (I got a mention in the RFC) Although you _have_ to give one to Mark and one to Ed Guy.

• I use IAX2 over SIP because i can avoid the problems of setting up the NAT config, i also use IAX2 because i don't have to use the RTP ports, i can send dialplan modifications through the URI and i have less header weight so i don't use that much bandwidht.

• I find it's easier to configure IAX to provide more reliability than SIP.

• SIP is great, but IAX is cool!!! Setup it and forget it!

  Luc

• I use the IAX2 protocol for network monitoring. I use IAX2 registration packets to test connectivity to my client's IP-PBX installations and if a condition requires attention, myself or my support staff is immediately alerted with a telephone call. More often, my clients have support tickets solved and closed before they are even aware of a problem.

  What to read about the differences between IAX2 and SIP? Check out: http://advantia.ca/weblog/inter-asterisk-exchange-voip-primer

  Thanks Garrett

• I use IAX when people specifically demand it, but we're trying to curb that these days. Since IAX is horribly broken from both a stability and security perspective, we carefully limit its availability, and only for server-to-server connections where we have a static IP. I look forward to all routers being brought up to today's standards so that IAX is no longer needed to address bad NAT implementations.

• If for one reason alone, to avoid the horrors of SIP / STUN over NAT'd networks, especially when traveling...

• One UDP port to deal with, less firewall and NAT headache. I'll take whatever IAX I can get.