settings for SPA1001 is almost the same to SPA3102
setting for nonoh
http://www.nonoh.net/en/sipp.html
settings for sipgate
http://www.sipgate.com/faq/article/397/How_do_I_set_up_my_VoIP_device
for the port forwading settings on router and NAT settings on ATA see my blog
http://blog.wenxuecity.com/blogview.php?date=201010&postID=11768