[Serusers] rtpproxy

[Hoa Thai Duy]

Hello Olivier

See http://www.iptel.org/ser/doc/modules/html/nathelper.html#AEN59

Try using Nat Ping in nethelper module. By default, it is disabled.
If we don't ping NATed UAs from SER, NAT device (ADSL modem, Cable modem, other CPE) will block all SIP messages when the NAT entry for port 5060 expired.

Most of the UAs use registration period (refresh frequency) too long, eg. 1 hour. That also the cause for not to refresh the NAT entry.

Hope it help

Brgds

Hoa Thai Duy

> -----Original Message-----
> From: serusers-bounces at iptel.org [mailto:serusers-bounces at lists.iptel.org] On
> Behalf Of Olivier Taylor
> Sent: Tuesday, January 24, 2006 2:39 PM
> To: 'seruser'
> Subject: [Serusers] rtpproxy
> 
> 
> 
> Hi all,
> 
> I have a ser(0.9.4/Freebsd) server well working, but in some cases, I have
> a
> strang behavior. I use rtpproxy for nat traversal,all my users can call
> pstn, but when we try to call one of our users from internal or from pstn,
> Ser sends many invites and callee never answer to these invite. I must
> conclude that they don't receive it... All the users having that problems
> are under a nated network.
> 
> 
> Any idea ?
> 
> Olivier
> 
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