I assume your clients are behind NAT? UDP is connectionless so the port mappings that are opened timeout after a period of inactivity. It could be that this is happening so they cannot receive calls from FreeSWITCH.

Try setting http://wiki.freeswitch.org/wiki/Sofia.conf.xml#nat-options-ping or configuring your SIP client to send keepalive packets.

Steve

On 2 September 2014 01:31, Fernando Flórez <fernando.florez@gmail.com> wrote:

Hello,

Just setup an FS test server on amazon ec2. Everything works flawlessly but after a while sip phone arent reacheable even as they seem registered on FS and are able to do outbound calling.

Any idea of what could be happening? If i restart the sip phones every starts working again for a litrle while.

Thanks,

Sent from my iPhone
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