Port 5061 — SIP-TLS
Quick reference for TCP/UDP port 5061, used by SIP-TLS. Includes what the service does, security guidance and related ports.
What is port 5061?
SIP over TLS.
What port does SIP-TLS use?
SIP-TLS listens on port 5061 by default.
Is port 5061 open? How to check
Run one of these from your computer, replacing HOST with the IP address or domain you want to test.
nc -zv HOST 5061
Test-NetConnection HOST -Port 5061
nmap -p 5061 HOST
A refused or timed-out connection means the port is closed or filtered by a firewall.
Security guidance
Low risk — designed for public exposure
Port 5061 (SIP-TLS) is designed for public exposure. Standard hardening (TLS certs, current firmware, sensible rate limits) is enough — no special isolation needed.
Related ports
Frequently asked
What is port 5061 used for?+
Port 5061 is the standard TCP/UDP port for SIP-TLS. SIP over TLS.
What port does SIP-TLS use?+
SIP-TLS listens on port 5061 by default.
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