What ports need to be open for 3CX?

To allow users to use their 3CX apps remotely, on Android, iOS or Windows, you need to ensure that these ports are open:

  • Port 5090 (inbound, UDP and TCP) for the 3CX tunnel.
  • Port 443 or 5001 (inbound, TCP) HTTPS for Presence and Provisioning, or the custom HTTPS port you specified.

How do I allow ports in SonicWall firewall?

How to Open a Port on SonicWALL

  1. Type “http://192.168.168.168/” in the address bar of your web browser and press “Enter.” This will open the SonicWALL login page.
  2. Type “admin” in the space next to “Username.” Enter “password” in the “Password” field.
  3. Select “Public Server Rule” from the menu and click “Next.”

What port does 3CX softphone use?

Ports Used by 3CX Phone System v15+

PROTOCOL PORT (DEFAULT) DESCRIPTION
UDP & TCP 5060 3CX Phone System (SIP)
TCP 5061 3CX Phone System (SecureSIP) TLS
UDP & TCP 5090 3CX Tunnel Protocol Service Listener
UDP 9000-10999 7000-8999 3CX Media Server (RTP) – WAN audio/video/t38 streams 3CX Media Server (RTP) – LAN audio/video/t38 streams

How do I know if my port 5060 is open?

Just enter the IP address and port number….netstat -ant

  1. Stop SIP Server, so the port become available for you to test/use.
  2. Run: netcat -l [-u] 506[0-1]
  3. From the client: netcat SIP_Server_IP_FQDN [-u] 506[0-1]
  4. Type some random text on the an endpoint, if it appears on the other endpoint then the traffic is not blocked.

How do I check what ports are open on my firewall?

Check for Blocked Port using the Command Prompt

  1. Type cmd in the search bar.
  2. Right-click on the Command Prompt and select Run as Administrator.
  3. In the command prompt, type the following command and hit enter. netsh firewall show state.
  4. This will display all the blocked and active port configured in the firewall.

How does SonicWall firewall work?

SonicWall firewalls allow you to identify and control all of the applications in use on your network. This additional control enhances compliance and data leakage prevention by identifying applications based on their unique signatures rather than ports or protocols.

Is port 5060 Vulnerable?

An attacker could exploit this vulnerability by using UDP port 5060 to send crafted SIP packets through an affected device that is performing NAT for SIP packets. A successful exploit could allow an attacker to cause the device to reload, resulting in a denial of service (DoS) condition.