[Asterisk-Users] Free World Dialup behind NAT

[Oliver Brandt]

Hi,
after reading about it on the list I decided to set up a Free World
Dialup account. For those of you who don't know, that is a sip proxy
where you and your friends can singn up free and then you can just
connect to it with any sip client and call anybody that is registered
for free. Pretty much like iaxtel (I belive that was the name of it) for
the iax protocol. It even supports clients behind a NAT. It can be 
found on:

http://www.pulver.com/fwd/index.html

Anyway, I set up an acount and as long as my * box dials into the
internet itself it works fine. But as soon as I try to connect from
behind the NAT I can't here the other person (he can here me though).

My setup:
ATA -> * -> NAT -> Freeworld -> other person

Using the free sip phone from www.xten.com works fine:
xten-phone -> * -> NAT -> Freeworld -> other person

This is how I configured the xten-phone:

	"Display Name:"  the name you want others to see
	"User Name:" 16000
	"Authorization User:" 16000
	"Password:" is: (your_password)
	"Domain/Realm:" is: fwd.pulver.com
	"SIP Proxy:" is fwd.pulver.com:5060

	Left Click on the "SIP Proxy" button
	and for
	"Out Bound Proxy:" use: 192.246.69.247:5082

This is how you should configure an ATA:

	# Set UseTftp to 0
	# Set UID0 to your FWD account's FWD number (e.g. 16000).
	# Set PWD0 to your FWD account's password.
	# Set GkOrProxy to fwd.pulver.com
	# Set UseSIP to 1
	# Set SipPort to 5060
	# Set SIPRegInterval to 3500
	# Set SipRegOn to 1
	# Set outbound proxy to 192.246.69.247:5082
	# Press the Apply button at the bottom of the web page, then
	# restart the ATA 186 by powering it off and then on again.

I'm pretty shure I have to set the outbound proxy right. I just don't
know how. I've tried tons of setups and search the archieves but I just
can't seem to find it out. Anyway, here my sip.conf:

	[general]
	*other stuff*
	register => 33537:180580 at fwd.pulver.com/33537
	;register => 33537:180580 at 192.246.69.247:5082/33537

	[fwd1]
	reinvite=no
	canreinvite=no
	nat=1
	type=friend
	secret=180580
	username=33537
	host=fwd.pulver.com
	;host=192.246.69.247:5082
	context=incoming-fwd
	
Hopefully you can help me.
CU
	Oliver