Most of TLS layer attributes can be configured via TLS module parameters.
1. tls_port_no
The port the SIP server listens to for TLS connections.
Default value is 5061.
Example of usage:
tls_port_no=6061
2. tls_max_connections
Maximum number of TLS connections (if the number is exceeded no new TLS connections will be accepted). It cannot exceed tcp_max_connections.
Default value is 2048.
Example of usage:
tls_max_connections=4096