Tag Archives: Communication Services

Introduction to Session Border Controllers

High definition video conferencing is a standard right now. If it will change, it will only change to an ever higher definition such as Ultra HD (involving 4K and 8K). Virtual workplaces, telecommuting and working from home becomes more and more easy and so organisations go expanding, sometimes forgetting about network requirements ending up with new capacity limits or reduced quality of their video communication solution.

A Session Border Controller can help with many problems there might be, but it is not a remedy for every issue ever to occur on your video conferencing network. I wrote this article to give you some more insight into what a Session Border Controller is, what it does and how it can help your corporate communication.

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What is a Session Border Controller?

A Session Border Controller is a network component designed to safely link networks with a different security requirement and setup. They are mostly utilised for VoIP and video conferencing networks to establish secure connection sessions. The Session Border Controller therefore allows control of signaling and transfer of media data in a secure way.

What can I do with a Session Border Controller?

Session management allows service providers to control the session routing, establish interoperability across environments with differentiating standards, enforce bandwidth policies or create an interface to a third party application. To keep it short and simple: A Session Border Controller optimizes solution performance and overall service quality, it allows a rapid service deployment or growth and it protects infrastructure from malicious attacks.

Who develops Session Border Controllers?

Based on Gartner’s Magic Quadrant for Session Border Controllers from October 2012, Acme Packet (recently acquired by Oracle) excels in execution as well as vision scope, making them the leader of the magic quadrant (see graphic). Other competitors are Huawei, Sonus, Genband, Metaswitch Networks, Dialogic, ZTE and Technicolor.

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Magic Quadrant for Session Border Controllers by Gartner Research

Acme Packet is very interesting due to their focus on unified communications networks and even offering solutions especially designed for video conference networks of manufacturers such as Alcatel-Lucent, Avaya / Radvision, Cisco (including former Codian / Tandberg technologies), LifeSize, Polycom and Vidyo. Supporting and enabling interworking these technologies the Acme Packet solution avoids potential for vendor lock-in, protecting the investment made in video conferencing infrastructure and endpoints.

What are the technical functions of a Session Border Controller?

The functional scope of a Session Border Controller can vary, depending on what the individual device is designed to do. However to reflect a maximum of capability information, we would like to list the following functions that can be found in Session Border Controllers:

Connectivity

  • IPv4 / IPv6 interworking
  • SIP manipulation
  • NAT traversal
  • VPN connectivity
  • H.323 / SIP interworking

Quality of Service (QoS)

  • Traffic policies
  • Call admission control
  • ToS / DSCP bit setting
  • Resource allocation
  • Rate limiting

Security

  • Defense against DoS attacks
  • Can prevent toll fraud
  • No topology hiding possible
  • Malformed packet protection
  • Signaling protection via TLS and IPSec
  • Media protection via SRTP

Media processing

  • DTMF delay and interworking
  • Media transcoding
  • Tones and announcements
  • Data and Fax interworking
  • Support for Voice and Video calls

Regulatory

  • Call prioritization (e.g. for VIP usage or emergencies)
  • Auditing functions for internal audit or for law enforcing organisation
  • Business Intelligence, reporting, management information, source for billing information

Summary

Even though not a mandatory part for VoIP or video conferencing networks, Session Border Controllers have a great potential to add value to the communication services of organisations. The relevance increases for service providers companies as the functions described above can significantly increase the quality and performance of a serviced network.

If you have questions, remarks or other types of feedback please drop us a line in the comment section below. Thank you!

How Unified Communications Can Improve Your Business Strategy

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Unified Communications in Enterprises (photo by Victor1558)

More and more businesses are using advances in technology to further their reach and expand. A number of businesses are already familiar with Skype, and that tool has enabled businesses to contact clients and team members who may work from home at a seconds notice. Unified Communications have created a system that has all the benefits of Skype and incorporates other forms of communication too, making it the complete package.

What is Unified Communications?

Unification of communication systems can really give your business a competitive edge and enable you to keep all your forms of communication in one place, making it easy to maintain and man-manage on a day-to-day basis. It enables you to combine telephone and business data on one single network, and gives you the flexibility in your communication to combine and use voice, video and data in applications. You can also save and forward instant message streams, phone calls, faxes and emails, voicemail and video conference sessions as data files. This way, nobody is left out of the loop.

The data is encrypted to ensure that it cannot be obtained and fall into the wrong hands, giving you complete security when passing data across your network. If there is sensitive or important information being sent across, you can rest assured that it will stay in the appropriate circles, regardless of whether it is sent in the form of an email, voice call or video.

How Can Unified Communications Improve My Business Strategy?

The name of the game here is ease of use and a lack of complication. When you have ten plates spinning, there’s a good chance that any could become neglected and fall. Unified Communications allows you to keep everything in order and in one place, meaning that one person can take care of everything if need be, and without any confusion or frustration. The team member can use a single phone number or handset and a unified inbox for all the available communications too. An easier life for your team is the ultimately goal for everybody, and this system provides it.

Cost Saving

Every business strategy needs a budget in place, and every business needs to know what costs are going to be made and saved by the strategy they put into place. Unified Communications save businesses a great deal of money by having all of your communications related outgoings being billed as one item. This makes it a great deal easier for businesses to set a budget and fill out a profit-and-loss. If a business can budget easier, it makes it a lot less difficult to plan ahead.

The systems are pretty inexpensive too, meaning that more small businesses are turning to Unified Communications so that they can save on a variety of systems they would have to set up individually and just focus on the one system that unifies everything, from voice, to email, fax and SMS.

Time is a valuable commodity when putting together a business strategy, and with a unified communication system in place, you can save time and money on training team members on how to use a variety of systems. Once you have a team member trained to a high standard on a unified system, you would have covered all channels of communication, which in turn will help keep your customer service to a high standard and improve efficiency.

Improving Customer Service

Every business strategy has to include ensuring that the customers are taken care of and that their issues and queries are dealt with quickly and effectively. A number of customers will make their complaints heard via social media, email, fax and by telephone contact, so it is essential that all businesses have a clear strategy for taking care of these customer service issues the moment they arise. With a unified communication system, a query or complaint will be noticed immediately, and can be actioned right away. It also takes away the possibility that a complaint or query could be missed by a team member, as it will be right in front of you on the system. With customers demanding a quick service, this form of communication system can see your customer satisfaction stats skyrocket. A quick response can be the difference between a happy customer and a dissatisfied one, after all.

The key points here are: Speed, efficiency and ease of use. There really is small room for error with a Unified Communication system. Your business strategy is designed to help the company move forward, improve and exceed what it was delivering before. Unified Communications could be the key ingredient to your business doing just that.