[Freeswitch-users] Freeswitch is responding to contact's port when client behind NAT

Brian Foster bdfoster at endigotech.com
Thu Jun 7 22:40:27 MSD 2012

Please take a look at NDLB-connectile-disfunction parameter, details on the

Seems to be a common question this week...

Brian Foster
Endigo Computer LLC

Sent from a mobile device.
On Jun 7, 2012 3:22 AM, "BELint Inc" <belintinc at gmail.com> wrote:

> Hi All,
> We`ve been using freeswitch since very long, It was good all over but it
> got stuck to a simple yet complex situation. We have Yealink T28P series
> phones behind NAT and freeswitch is unable to get them register. In the
> scenario freeswitch is at public IP. The reason we think is that freeswitch
> is using sip port in contact header to respond to.
> Is there anyway we can avoid this or force it to always send the response
> to destination IP instead of contact or via header ports because clients
> are behind NAT and response can only reach them if it respond to
> destination IP & PORT.
> Please revert if someone know how to solve this problem. It is very urgent.
> Regards
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