[Freeswitch-users] Manipulate the SDP origin field

[Chris Graham]

Hi All,

I have an issue whereby my cluster is in a mixed nat and not-nat
environment. I would like to manipulate the o= field on a per call
basis.

In short I would like to achieve the below two scenarios, based on the dialplan
Internal offer:
Owner/Creator, Session Id (o): root 4267 4267 IN IP4 192.168.1.1

External offer:
Owner/Creator, Session Id (o): root 4267 4267 IN IP4 208.73.210.48



I have tried the below, with no success to the origin field.

dialplan.xml
<action application="bridge"
data="{sip_from_uri=sip:${caller_id_number}@208.73.210.48}${lcr_auto_route}"/>

vars.xml
<X-PRE-PROCESS cmd="set" data="bind_server_ip=208.73.210.48"/>

internal.xml
<param name="ext-rtp-ip" value="$${local_ip_v4}"/>
 <param name="ext-sip-ip" value="$${local_ip_v4}"/>


external.xml
<param name="ext-rtp-ip" value="208.73.210.48"/>
<param name="ext-sip-ip" value="208.73.210.48"/>

Thanks in advance for any assistance,
Chris G