[n00b]

Has anyone got the settings for smartvoip on Zoom 5800 ATA? This is a betamax site so settings for voipstunt, voipbuster, etc. would also help me.
I have entered lots of different settings but have not been able to make a call.

So far:

SIP Enable - ENABLE
Service Provider Name - SMARTVOIP
Outbound Caller ID Name - myUSERNAME (the one I use to log into smartvoip)
Phone Number - myUSERNAME
Auth User Name - myUSERNAME
Auth Password - myPASSWORD
SIP Server - smartvoip.com
Auth Domain - smartvoip.com
Outbound Proxy - sip.smartvoip.com (put this in even though the website tells you not to!)
Register Domain - sip.smartvoip.com
ReReg Interval - 3600
Subcribe Domain - smartvoip.com
ReSub Interval - 3600

All other options are disabled or blank. I have also inputted the STUN server as stun.smartvoip.com

Can anyone help? I've been at this a good few hours and I think there maybe something really obvious I'm doing wrong or am not seeing.

Thanks in advance.

EDIT: Got it working for outbound using updated settings above. Mods you can delete this thread or maybe leave it in case anyone else has problems. I will update if/when I can get incoming working.