Port 3541

voispeed-port · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicevoispeed-port
Registered2002-07

Frequently asked questions

What is port 3541 used for?

Port 3541 is registered with the IANA for voispeed-port (TCP/UDP). Description: VoiSpeed Port.

Is port 3541 a well-known port?

No. Port 3541 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3541 is open?

Locally on Linux with ss -tulpn | grep ':3541\b', on Windows with netstat -ano | findstr :3541. To test a remote host use Test-NetConnection <host> -Port 3541 in PowerShell or nc -zv <host> 3541 on Linux/macOS.

How do I open port 3541 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3541/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3541/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3541" -Direction Inbound -Protocol TCP -LocalPort 3541 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPvoispeed-portVoiSpeed Port
UDPvoispeed-portVoiSpeed Port

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