Hi All, I've setup mod_dingaling to connect to my google voice account according to the instructions on the wiki http://wiki.freeswitch.org/wiki/Google_Voice#Setup_FreeSWITCH_-_Dingaling_to... with two modifications: <param name="rtp-ip" value="auto"/> <param name="ext-rtp-ip" value="auto-nat"/> I use the same IP settings for SIP (sofia) with no problem. The setup works fine for the first hour or two, but then I can see from another google account that the connection established by freeswitch goes offline. If I try anyway to make an outbound call, then the other end does not ring (even if I wait for a long time). However, after some minutes the freeswitch account returns online and works again for a couple of hours. I'm behind a nat and firewall. Is there any port which I have to open to keep freeswitch online? As far as I understand only the google XMMP server needs to listen to port 5222 and port 5269. Or, is there any kind of "keep alive" timer available? The google talk client running in the same environment works flawlessly. Thanks for any advise. Fede