I'm not really sure what question you're asking. After seeing others recommend it here, I always configure a SOCKS5 proxy in 'Network Security >> Advanced' for Skype access. That means Skype should aim at port 1080; I think that's standard, but I'd check to be sure.
Cheers - Bob
Sophos UTM Community Moderator Sophos Certified Architect - UTM Sophos Certified Engineer - XG Gold Solution Partner since 2005
Setting skype to use socks5 will work. You need to add the following : port 1080 and under skype (options>advanced>connections and enable socks on your ASG with authentication