SIP Trunk Security with Firewalls

Scott Beer

Scott Beer

[su_row]
[su_column size=”1/2″]
SIP Trunking is often a peer-to-peer connection for the primary use of delivering PSTN connectivity over VoIP. SIP Trunking is delivered over a couple of different methods:

Internet Telephony Service Providers (ITSP)

  • Deliver SIP Trunking over the Internet

[/su_column]
[su_column size=”1/2″]

[/su_column]
[/su_row]

Managed Service Providers (MSP)

  • Deliver SIP Trunking over the dedicated carriers WAN connections

The application of security solutions involves providing a firewall in combination with an IP‑PBX that’s used to define the peer-to-peer relationship at various networks and VoIP application layers, and also ensuring signaling and media are secure as well.

Security Best Practices

In the example above, the IP‑PBX resides behind a typical network firewall. The firewall is the border element between Internet or Untrusted Network Zones and Local Area Networks or Trusted Zones. The firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules.

If you enjoyed this blog, and would like to learn more about Security Best Practices for VoIP, download our whitepaper here: Voip Security Best Practices

Share this Blogpost

Share on email
Share on facebook
Share on twitter
Share on linkedin
Share on reddit
Share on tumblr
Share on telegram

Start the Discussion

Sign up for our Newsletter

Scroll to Top