First of all, if you have a SIP ALG on the Cisco ASA 5505, turn it off.

After that open up and forward your SIP signaling and RTP ports to that FreeSWITCH box you have sitting inside your LAN. That start help clear some issues out. And oh, don’t forget to check the ext-sip-ip and ext-rtp-ip values so that they match up to what’s outside.

From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of Chris Ferreira
Sent: Wednesday, March 20, 2013 8:25 AM
To: FreeSWITCH Users Help
Subject: [Freeswitch-users] Hosted Freeswitch and Cisco ASA 5505

Hi Folks,

I'm trying to preserve my sanity here and want to double check this. Are there any special considerations or configurations that need to be made when using a Cisco ASA 5505?

A Cisco Tech is telling me everything is setup correctly and that no special NAT or Firewall rules need to be made. I say that's incorrect and have given them the info at http://wiki.freeswitch.org/wiki/Firewall on ports and protocols, etc.

I swapped out the Cisco with a basic Linksys just to test and everything is fine.

Thoughts?

Thanks,

-Chris