Categories: Technical Advice

Using OpenVPN with Snom IP Phones

Did you know that you can configure two Snom IP phones for VPN without additional equipment? Snom provides a special firmware load for the Snom 370, Snom 820 and Snom 870 IP phone models that all you to set up a secure point-to-point VoIP infrastructure using OpenVPN.

Snom uses OpenVPN as it is licensed under the GPL (Open Source) and is compatible with SSL/TLS, and RSA Certificates as well as X509 PKI, NAT, DHCP, and TUN/TAP virtual devices. Using the Snom 370, Snom 820 or Snom 870 along with OpenVPN you can tunnel any packet of your phone over a single UDP or TCP port.

This eliminates the need to use secure sip, srtp, or stun. You can also use any cipher or key sizes supported by OpenSSL and choose between static-key or certificate-based public key encryption. Alternatively you can use static, pre-shared keys or dynamic key exchange via TLS or username & password. With this setup you can tunnel phones over NAT or tunnel phones through firewalls. OpenVPN offers cross-platform portability, and is able to run on Linux, Windows 2000/XP and higher, OpenBSD, FreeBSD, NetBSD, Mac OS X, PocketPC and Solaris.

The Snom VPN firmware is available for download here. For full documentation on installing VPN on your Snom 370, Snom 820 or Snom 870 visit the Snom wiki document page here.

Garrett Smith

Garrett is the former VoIP Supply CMO.

View Comments

Share
Published by
Garrett Smith

Recent Posts

How to Prepare Your VoIP Systems for 2025

Remember Back to the Future II? I loved that movie because they traveled into the…

1 day ago

SIP Chats: Sharath Abraham of Jabra – Panacast 50, BYOD Solutions, and More!

https://youtu.be/qsNO-fZdY3U?si=1A2biOpTwvHG-wiB In the latest episode of SIP Chats, host Brian Hyrek sits down with Sharath…

2 days ago

Watch Now: 2024 November VoIP News Update

https://youtu.be/a--L6ZF9iAw VoIP Supply’s November VoIP News Update: Exciting New Tools, Upcoming Releases, and Giving Back…

6 days ago

Q&A: Wi-Fi 6 vs. Wi-Fi 5: What’s the Real Difference for Everyday Users?

Wireless internet? I remember sharing computer time with my siblings to wait 10 minutes for…

1 week ago

Fanvil FCMS Smart Proporty Solutions Webinar | November 2024

https://youtu.be/0Oxom_f47EE If you missed this webinar, then don't worry, the recording has arrived! This webinar…

2 weeks ago

How To: Extend Your DECT Range for Wireless VoIP Phones – Tips for Large Office Spaces

Ensuring seamless VoIP connectivity across vast areas can be challenging if you're managing a large…

2 weeks ago