[Freeswitch-users] NAT settings

George Cooper geocooper at gmail.com
Sat Feb 16 21:48:41 MSK 2013


I just started trying to work with freeswitch using the FS 1.06 book( although I am running FS ver 1.2.6+git.) , FS cookbook,, and wiki.   

I  and have a question regarding NAT traversal. 

I have been stuck trying to get phones to register and be able to call each other using ext 1000 to 1002 for example. I couldn't get the phones to register until I read an archive regarding polycom NAT issues.

The freeswitch server I'm connecting to is hosted on a remote  public IP.  I'm using a polycom 335, grandstream xpx 2020, and an x-lite client on a Local 192 network.  

The below settings seem to have fixed my registration issue.

Is there a reason that I would NOT set the parameter settings in sip_profiles/internal.xml to true:

<!-- use at your own risk or if you know what this does.-->
    <param name="NDLB-force-rport" value="true"/>

and to add the variable "sip-force-contact"  for each user in directory/default/1000.xml - 1019.xml ? 

  <user id="1000">
      <param name="password" value="$${default_password}"/>
      <param name="vm-password" value="1000"/>
      <variable name="sip-force-contact" value="NDLB-connectile-dysfunction"/>
      <variable name="toll_allow" value="domestic,international,local"/>
      <variable name="accountcode" value="1000"/>
      <variable name="user_context" value="default"/>
      <variable name="effective_caller_id_name" value="Extension 1000"/>
      <variable name="effective_caller_id_number" value="1000"/>
      <variable name="outbound_caller_id_name" value="$${outbound_caller_name}"/>
      <variable name="outbound_caller_id_number" value="$${outbound_caller_id}"/>
      <variable name="callgroup" value="techsupport"/>

Sorry if this has been gone over, but I'm not sure if there is something I'm missing because the wiki ( http://wiki.freeswitch.org/wiki/NAT ) says "NAT just works" and the internal.xml file says "<!-- use at your own risk or if you know what this does.-->"...

Thanks for any clarity you can provide,

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