Port 2517

call-sig-trans · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicecall-sig-trans
Modified2013-01-31

Frequently asked questions

What is port 2517 used for?

Port 2517 is registered with the IANA for call-sig-trans (TCP/UDP). Description: H.323 Annex E Call Control Signalling Transport.

Is port 2517 a well-known port?

No. Port 2517 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 2517 is open?

Locally on Linux with ss -tulpn | grep ':2517\b', on Windows with netstat -ano | findstr :2517. To test a remote host use Test-NetConnection <host> -Port 2517 in PowerShell or nc -zv <host> 2517 on Linux/macOS.

How do I open port 2517 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 2517/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=2517/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 2517" -Direction Inbound -Protocol TCP -LocalPort 2517 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPcall-sig-transH.323 Annex E Call Control Signalling Transport
UDPcall-sig-transH.323 Annex E Call Control Signalling Transport

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