You can pass in TLS_PORT and TLS_IP as defines using kamailio startup option -A TLS_IP=xxx -A TLS_PORT=xxxx but to my knowledge you can’t otherwise dynamically bind to IPs/Ports once kamailio has started.

Blessings, — Daniel Donoghue

On 13 Dec 2020, at 15:19, Syed Shahryar syedshahryar@gmail.com wrote:

This is a generic question about using environment variables in a config file.

If I want to use below where TLS_IP itself is a constant defined somewhere else. TLS_IP might be set via an env variable as well.

#!define TLS_TO_LISTEN tls:TLS_IP:$env(TLS_PORT)

Will that work? I see syntax errors and other weird issues. What's the right syntax?

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