Aastra phones not supporting STUN

Maybe I don't have enough experience.

From what we have experienced using the Aastra phones with Trixbox if you don't hard code the external IP address in the phone then it tries to use the internal LAN IP (that it was assigned by the router at the remote location) when registering to Trixbox. Most internet connections held by employees have dynamic assignment. A couple providers change the IP randomly and frequently.

I understand how to do the port forwarding (and could walk employees through this) but most of our individuals that would be working remotely have very little technical experience and only understand "plug the big phone jack into the phone and then into the router, then plug in the power".

The other challenge is when people are travelling they do not have access to the setup of the router to do the port forwarding (i.e.: in a hotel room).

In our experience we have had no issues using Sipura SPA's when connecting from hotels (with STUN enabled).

Can you recommend any other way to get around this? What we want is for the sales individual to be able to take the phone anywhere in the world with an internet connection and be able to work like they are sitting in their office.

Thanks

Darren

Thanks for the information.

How would increasing the reg. period help with the device in a hotel room (RE: port forwarding)?

I keep a 480i strapped to my belt at all times, just in case.

I guess I am missing something..... I still fail to see how what you are suggesting will work, as I do not have the option to forward ports in the router.

I DO know that STUN would fix this and makes deployment seamless as i have used STUN with MANY other SIP devices. If there wasn't a need for STUN then why was it created?

If Aastra could add to a future release that woud be greatly appreciated. If not, so be it. I will have to look at other phone manufacturers with STUN support for external clients.

Thanks! Have GREAT Day!

Darren

have your tried updating your firmware - not sure, but i think you should have STUN in the latest firmware, 5i firmwares all have STUN, so the 480 shouldnt be far behind.

Re STUN: It doesn't have it, and support isn't planned.

I'm wondering, have I paid $250 for a phone which I'll never be able to use to make a call? The only way I can get it to talk to Asterisk is if I enter in the NAT device external IP in the phone config, but that's something which changes. Is this phone just an expensive paperweight?

if the ip changes - why dont you use dyndns, and put the dns name in the NAT IP field - i think it should take the name as well.

do you use a lot out of the office? If its just one or 2, why not get a 55i - I think they are only like $10 more, and you could then have the feature you want.

keep in mind you are on a platform that was designed 7-8 years ago, even microsoft doesnt keep adding features for that long, the 5i series has everything you asked for, and they still cost less than a Snom, and they have a cordless as well - just no built-in vpn client - also keep in mind, using vpn can limit your QOS capabilities, and may not work for voice if you have other traffic hitting that tunnel.

Hi,

I have an aastra phone (9113i) in a home office, behind a generic home router. The PBX (asterisk) is on a public IP. There are no problems with traversing the NAT and connecting to asterisk. It makes and receives calls just fine (The only problem is that I had to use IP addresses due to a bug in the Aastra firmware where the thread that does DNS lookups would sporatically crash. Apparently it's a known problem. I've reported it, but they don't seem too interested in fixing it.)

I have also setup a SNOM and it works fine going out through the router and connecting to the asterisk server. (It has STUN support, but i just entered the asterisk server address, username and password and it just worked.) I didn't see any options for stun (ie. stun server), so I don't know if stun is being used.

Hope this is helpful.

what is the router?