Different ports for incoming/outgoing SIP signaling

[jmi]

Hello
I am running Asterisk 15.5.0 on Debian 9 (if this matters)
My SIP trunk provider requires UDP/5060 for incoming traffic ( to Asterisk ) and UDP/6060 for outgoing traffic ( from Asterisk )

I have configured sip.conf using default bindport , i.e. using 5060 by not overriding default values.
I can receive calls from outside but I am unable to make outbound calls

Seems to me that Asterisk doesn’t support this scenario within sip.conf ( correct me if I’m wrong ) and I am left to solve this using iptables DNAT. However, I have tried this in numerous ways with no success.

Has anyone this setup running ?

Best,
Jens

[david551]

Sounds a strangte restiriction given that simple SIP clients will originate from a random port number. Are you sure that the non-standard port is not the one at their end, only.

[jmi]

Thanks, David

Sorry if this was unclear
My SIP trunk provider requires SIP signaling for my outgoing calls to be sent to their ip address port 6060 - i.e. target should be port 6060. to my knowledge there is no requirement for the source port

br
Jens

[david551]

You can set that in the host parameter for chan_sip and I’m sure you can do the same for pjsip.

The incoming port is bindport.

[jcolp]

In PJSIP everything is URIs, so it would be part of the URI ala:

sip:provider.com:6060

[ambiorixg12]

if using chan_sip on peer configuration parameters use port=6060