/usr/lib/firewalld/services/ Current File: //usr/lib/firewalld/services/sips.xml

<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>SIP-TLS (SIPS)</short>
  <description>SIP-TLS is a modified SIP (Session Initiation Protocol) using TLS for secure signaling.</description>
  <port protocol="tcp" port="5061"/>
  <port protocol="udp" port="5061"/>
</service>