[asterisk-users] configure SRTP port range?

Joshua C. Colp jcolp at digium.com
Fri Feb 22 12:56:20 CST 2019

On Fri, Feb 22, 2019, at 2:48 PM, hw wrote:
> Hi,
> when trying to use SRTP, I can see UDP traffic from phones to the 
> asterisk server being dropped be the firewall on arbitrary ports.

There is no separate port range used for SRTP, and Asterisk does not control the port that the phone uses for sending to Asterisk. That's up to the endpoint.

> Where do I configure the SRTP port range (like the rtp port range)?
> Why aren't the clients talking to each other directly but apparenty try 
> to send the SRTP traffic to the server?

DIrect media with SRTP is not supported. All media when SRTP goes through Asterisk.

Joshua C. Colp
Digium - A Sangoma Company | 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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