Updated Info 16 Oct 2008
A1 offers SIP accounts in Austria. Even if you are not a customer of A1, you can register an account at
http://A1.net/a1overip (requires SMS confirmation at an Austria mobile phone). You may choose a free account. If you are already a customer with A1, with a classic account you can make net-out calls with your A1 number (in this case enter the voucher code 80000012 for a 6 months test period).
Next, download and install kvats. kvats.net is pre-configured with settings for A1.net. So you do not need to enter the parameters below, just enter username (with or without "@a1.net" ) and password.
If you want to configure access with A1 as a generic SIP account, here are the parameters:
User: A1.net username without "@a1.net"
Passwort: password of your A1.net user
Domain: a1.net
Server: a1.net
Outbound-Proxy: sip.a1.net
SIP Port: 5060
Favoured: 0
