Hi, like to know which configurations are most suitable for roaming users accessing from various external environments? As an example, should I use "nat=yes" in sip.conf when the end device could be connecting from behind nat with private ip or with a public ip? Appreciate any suggestions. Thanks. Regards Andy Tan -- Andy Tan andytan@fastmail.fm -- http://www.fastmail.fm - Accessible with your email software or over the web