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The Orchestrator’s SIP process expects to receive UDP and TCP-based SIP messages on port 5060 and TLS-based SIP messages on port 5061 (legacy customer’s customers may also use 5062 for TLS).
The source port for UDP-based SIP messages is usually port 5060 as well.
An alternate and completely different definition of a Port is a single trunk, call path, session, or voice channel between to two network elements.