How Does VoIP work?

VoIP (Voice over Internet Protocol) has come under fire in recent years for the unknown safety of the application and the quality of the calls. However, a number of technologies have now been invented to overcome these disadvantages.

VoIP calls are free. Therefore, in recent times businesses have invested in the technology.

How are these new technologies that have been invented to advance the quality of VoIP applications? Here we explain more about these technologies.


Session Initiation Protocol (SIP) was invented primarily for employees to take part in meetings over the internet. It is the part of VoIP that allows your voice be understood as communication. As you can imagine it is one of the most fundamental aspects of VoIP. It has the same working principle as your phone line but this one allows sharing documents and pictures via VoIP also.


MPLS stands for Multi-Protocol Label Switching and its main purpose is to improve internet speeds and prevent servers from becoming overcrowded. It can be used as a remote circuit that connects employees working in different locations to one another. MPLS is used in large servers and guides files from one system node to the next based on minor path labels instead of using IP addresses. This prevents the system looking these up in a navigation table. Therefore, it has come to be essential in the structure of big IP schemes. Hosted applications and transaction management are now advanced via MPLS.


VoIP is becoming increasingly popular with companies and in numerous companies has replaced the phone. However, if you’re looking to advance your VoIP application, it is advisable to install SIP over MPLS technology. If high quality communication is detrimental to your business then using SIP over MPLS is recommended. The internet wasn’t originally created to host telephone calls; therefore it is likely that you will experience differences in the quality of the calls.

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MPLS is a distant server created for applications that are data heavy and businesses that need a high powered server. When placed over SIP, all the features of a normal VoIP system are exceeded.

SIP creates added features for VOIP to improve the call quality. SIP trunking in the name of the process that allows you to make and receive calls via the internet.

It is likely that you may need MPLS and not SIP to improve your VoIP calls, as they can work together and on their own. Here are the advantages of placing SIP over MPLS:

  • Improved voice quality
  • Improved security
  • Video transfer
  • Cheap SIP charges
  • Transfer files to united communications or cloud services
  • Enlarged functionality
  • VoIP direct from one site to another

VoIP has become a must have in every business across the country. As outlined in this piece, the advantages of the application are too obvious to ignore. However, with this new technology, customers are not expecting businesses to be competent in dealing with business over the internet as quickly as possible. Now that SIP and MPLs are obtainable, businesses that were once cynical of VoIP now have no reason to worry. The system will benefit businesses in more than just cost savings.