VoIP through a VPN connection

VoIP through a VPN connection

VoIP through a VPN connection
Many home workers use VPNs for connecting to their business resources. A VPN (Virtual Private Network) is a secure network connection that use protocols to encrypt information before sending it. Using a public infrastructure, such as the Internet, they can provide remote offices or individual users with secure access to their organization's network. The data is encrypted at the sending end and decrypting at the receiving end. Typical small VPN routers may support various VPN protocols, such as IPSec, PPTP, and PPPoE Passthrough.
Although, it's important to keep secure the remote access to data resources, it may not be as important to secure telephone connections. VoIP connections through a VPN connection are sometimes done to limit NAT issues, as the home office becomes an extension of the businesses LAN. This type of scenario would be more typical of IP-PBXs, such as an Asterisk server or as shown below Shoretel. If home office workers are connecting to a hosted VoIP provider, their VPN back to the office would probably not tunnel voice, which would connect out through their home router directly to the VoISP over the Internet




What is a VPN?

VPNs (Virtual Private Networks) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia).

Why do I need a VPN?

Whether youre an expat living in a foreign country where the internet is heavily regulated, a mobile user constantly on the road, or just someone concerned with maintaining their privacy online, having aVPNis becoming essential.


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