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Effective Use of VPN and VoIP

VPN technology provides access to internet to enable the membership of remote network. It also offers security protocols. VoIP allows the use of internet for phone or video calls without any cost, through access to internet. These two technologies can be used in combination to enjoy their true advantages in our lives.


VPN is an abbreviation of Virtual Private Network. Using VPN technology, a safe tunnel can be made via networking to two or even more remote sites. This helps in transferring data by using secure protocols. There are various secured protocols that can be used on the VPN connection like PPTP, L2TP and the Open VPN. Choosing these protocols depends upon the type of operating system that is installed on the VPN capable devices.

However, there are certain protocols that are not compatible with all the devices. For instance, Open VPN does not offer compatibility with Apple IOS; therefore, iPads and iPhones cannot become members of such VPN that utilizes Open VPN. Moreover, every VPN protocol provides support for different encryption levels.


• No requirement of leasing long distance lines (if you have access to internet)
• No charges for long distance telephones (if you have access to internet)
• Condensed maintenance cost, based on the network infrastructure


• Based on the quality of the services provider, VPN can have disadvantages in terms of downtime. While choosing the provider, looking for the guarantee of minimal downtime is a must.

• The security and design implementation of VPN can become very complex, as handling it may require the help of a professional for choosing the best configuration required by your equipment.

• Product manufactured by various vendors may give you problems relating compatibility.

• Choosing a same vendor for all products can cost you much.

• Normally, there is an overhead on connection. It depends on the security protocol that is linked to the VPN environment and is not usually noticeable.


VoIP is an abbreviation of Voice over IP. This technology enables the transmission of voice and multimedia over Internet Protocol. To have a VoIP session, equipments at both ends need to be compatible with each other. Moreover, a number of protocols like SIP, RVP, and MGCP can be employed over Internet Protocol.

Note that whichever protocol is chosen for the use must be compatible with all VoIP enabled devices. Quality of Service (QOS) should be configured on gateway appropriately so that you can experience a perfect VoIP session.


• It helps in minimizing phone calls
• Can be setup using affordable hardware and software
• It offers low cost phone portability. You can move your VoIP anywhere you like with payment of additional roaming charges.


• Voice quality is not good some times that can depend on various factors like bandwidth protocol etc.

• It is dependent on the Broadband connection. Weak connection leads to low VoIP session.

• Certain bandwidth is allocated to VoIP. If other users in network are downloading media or software, you can experience low quality in your session. This can even drop your VoIP session.

Why Use VPN Along With VoIP?

By employing VPN protocol, your session is transmitted to an encryption. A widely used protocol VoIP named as SIP is tough in bypassing through firewall due to the use of random ports for connection.

Thus, in order to establish encrypted VoIP session and minimize connectivity problems; it is highly advised to establish VPN connection firstly to your VoIP provider. Your business or home devices can also provide VoIP. This enables you to call friends and family using your business landline while you are away. This saves you from paying for roaming charges of your phone.

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    Kaylee is the person that makes the world 'go-round' here at She is not only our resident Systems Administrator but also our publishing coordinator and even an occasional author. Kaylee has been with since 2013.

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