The Importance of a Virtual Session Border Controller
In the VoIP industry, all types of sessions and media are exchanged over an internet network. This increases the threat of commonly known and unknown threats and hacking attacks. Thus, any VoIP business needs extensive security mechanisms to keep business protected from these known and unknown threats. There are multiple hardware and software based VoIP security solutions available out of which the virtual session border controller solution is highly popular.
What is a session border controller?
The SBC solution, as the name suggests, is deployed on the borders of two VoIP service providers. It inspects the media and SIP sessions at the border of the network before it gets transmitted from one network or another. It can protect the IP communication flows, as well as regulate the glow.
The session border controller platform can be a software solution or a hardware device. It can regulate how each call is kicked off, connected with another network, exchanged media and data, and terminated the call.
What is a virtual session border controller?
It is a dedicated component in the VoIP network that regulates calls and sessions over SIP lines in the VoIP network to keep systems and VoIP infrastructure protected. The virtual SBC solution can also be a hardware or software based solution. But, it is commonly considered a software solution. The common goal of this software is to protect the network and VoIP business, but that is not the only use case of this solution. The virtual session border controller software can be used to benefit different aspects of the VoIP business, which makes it an important component of any VoIP network.
What is the importance of a virtual session border controller solution?
There are several reasons to use a virtual session border controller platform.
1. Robust and reliable security
One of the most secure ways of keeping any VoIP solution and network protected is the security features. The SBC solution prevents the breach of security. It uses different security mechanisms to make the whole network more protected such as:
It checks all sessions and calls at the border of the VoIP network.
It supports multi factor authentication to ensure secure access.
It encrypts the calls and media so even if the lines are intercepted, the system and media getting transmitted over the lines are protected.
The topology hiding is another amazing security measure available in this platform to keep the system protected.
2. Interoperability
IP communication across VoIP networks experiences interworking and interoperability issues. The virtual SBC solution provides codec transcoding and other signaling interoperability features that can help operational compatibility between different networks with different codecs, topologies, etc.
3. Scalability
The virtual session border controller platform is a highly scalable solution. The call volume and number of sessions would increase at any time as platforms face high volume during peak season. The software based solution with the right architecture can be available round the clock and have multiple other amazing scalability options. The HA (High Availability) solution will help in achieving career grade redundancy to improve the performance of the software and VoIP network.
Concluding notes
The SBC solution helps in leveraging several advantages other than safeguarding the network. In the modern VoIP infrastructure, a virtual session border controller solution is considered an unparalleled network element to keep VoIP business protected, highly available, and scalable.
The real time features of the session border controller system make this solution important for any business. One can also invest in developing this software from scratch. As this system is too vital for the VoIP network, a majority of telephony platform providers offer a virtual session border controller as an integrated solution. It is a must have solution for any business to be secure and sustainable.


















