Softphone behind ISA Firewall

#1
I have just registered with VOIPfone and downloaded and installed the latest SoftFone - it doesnt work!!! This Iassume is because I am behind an ISA Firewall and is pretty much confirmed as my colleague who is not behind the ISA followed exactly the same steps and his system just works!!!

I have opened up all the necessary published ports through ISA after following several posts here and elsewhere but with little luck (actually no luck as its still not working!)

Do I need to change any of the settings on the actual SoftPhone itself? Things like NAT Firewall Address, Listen On IP Address look promising but I can find no documentation for any of these features.

Can anyone help please?

#2
Have you tried using the NAT Proxy?

There's a complete guide here:

http://www.voipfoneuserforum.com/viewtopic.php?t=784
Regards,

Voipfone Customer Services

iNet Telecoms Ltd (Voipfone)
Sovereign House
227 Marsh Wall
London
E14 9SD
United Kingdom

Registered number: 05168033
Vat Registration Number 858850966

Telephone: 020 7043 5555
Fax: 020 7043 5556

Web: http://www.voipfone.co.uk
Blog: http://www.voipfoneblog.co.uk
Forum: http://www.voipfoneuserforum.co.uk
Twitter: http://www.twitter.com/voipfone

#3
The Outbound SIP Proxy was already set to nat.voipfone.co.uk:5065.

Still doesnt work!

Looking at the log it only ever displays 'Discovering external SIP port on symmetric firewall...' if I force the firewall type to be 'Single Mapped Port Symmetric Firewall' or a couple of other types - none of which are waht I believe ISA to be!

Any help much appreciated as at the moment this system doesnt work!

#4
If you haven't done so already, try removing the NAT proxy - sometimes it does exactly the opposite of what it is supposed to do
Regards,

Voipfone Customer Services

iNet Telecoms Ltd (Voipfone)
Sovereign House
227 Marsh Wall
London
E14 9SD
United Kingdom

Registered number: 05168033
Vat Registration Number 858850966

Telephone: 020 7043 5555
Fax: 020 7043 5556

Web: http://www.voipfone.co.uk
Blog: http://www.voipfoneblog.co.uk
Forum: http://www.voipfoneuserforum.co.uk
Twitter: http://www.twitter.com/voipfone

#7
Can you do an MTR test for us pse?

http://www.voipfoneuserforum.com/about1693.html
Regards,

Voipfone Customer Services

iNet Telecoms Ltd (Voipfone)
Sovereign House
227 Marsh Wall
London
E14 9SD
United Kingdom

Registered number: 05168033
Vat Registration Number 858850966

Telephone: 020 7043 5555
Fax: 020 7043 5556

Web: http://www.voipfone.co.uk
Blog: http://www.voipfoneblog.co.uk
Forum: http://www.voipfoneuserforum.co.uk
Twitter: http://www.twitter.com/voipfone

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