Hi, Thanks for your reply. Maybe my problem definition is not fully clear: For my use case, having addtional configuration on the SIP UA (softphone) side is not feasible. I am looking for solution on the Freeswitch side(sitting on the public network). Not all SIP UA clients (softphones) will have the solution of working around NAT, let alone STUN client support. I observed the Freeswitch has some features like AutoNAT etc. Aren't these of any help for the use case i have ? I just started reading on the AutoNAT feature. The documentation of AutoNAT seems to suggest that freeswitch itself sits behind a NAT. This is not the same as my use case. To summarize: Does freeswitch have any method of detecting that the remote SIP UA is behind a NAT and taking some action based on that ? Any suggestions are welcome. thanks, --naren On Tue, Jul 26, 2011 at 7:09 AM, curriegrad2004 <curriegrad2004@gmail.com>wrote:
The SIP UA only needs to be configured to use NAT in this case. The FS Server does not need any configuration in this case.