[asterisk-users] [asterisk13] Multiple transport objects of same protocol in pjsip.conf

Joshua Colp jcolp at digium.com
Sat Jul 29 13:03:55 CDT 2017

On Sat, Jul 29, 2017, at 02:55 PM, O. Hartmann wrote:
> Scenario:
> Our Asterisk 13 PBX (on network, bound to
> is behind
> a NAT, acting as a client to our ITSPs SIP server. But also, this
> Asterisk is server for
> various VoIP telephones. 
> Acoording to Asterisk's wiki, the transport section of pjsip.conf is
> configured as
> follows:
> ; Transport via UDP
> [transport-nat-udp]
> type=                           transport
> protocol=                       udp
> local_net=            
> local_net=            
> bind=                 
> external_media_address=         ddns.gdr
> external_signaling_address=     ddns.gdr


You should only need this single transport as it will get used by
everything. Only when contacting external things will the external
values be used instead. This is determined based on the "local_net"
values you've provided.

Joshua Colp
Digium, Inc. | Senior Software Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - US
Check us out at: www.digium.com & www.asterisk.org

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