Services Description

Ribbon works with Microsoft to certify our session border controller (SBC) portfolio for Microsoft Phone System, Microsoft Operator Connect and Microsoft Direct Routing, enabling calling services for Microsoft Teams. Ribbon SBCs are deployed in Microsoft’s research and development environment assuring that future enhancements to Microsoft Phone System are tested with Ribbon solutions, even before they’re generally available. 

Ribbon’s core SBCs offer the multi-tenancy, scalability and high availability required to provide cost-effective centralized SIP trunking solutions to Microsoft Teams customers, including the direct connections between a service provider’s network and Microsoft Azure. Ribbon has decades of experience building session border controllers for SIP trunking for service providers across the globe. Our physical SBCs scale up to 150,000 SIP sessions per appliance and our SBC Software Edition (SWe) has no defined limit. 

In addition to core SBCs, Ribbon has multiple eSBC options to protect enterprises moving to Microsoft Direct Routing for Microsoft Teams including: 

  • Intelligent Edge hardware 
  • Virtualized software 
  • Public cloud-ready software (AWS and Azure) 
  • Ribbon Connect “as a Service” offers 

Ribbon’s broad portfolio makes it easy for service providers to define the most efficient architecture to deliver market-leading Direct Routing services to new and existing business customers. 


Session Initiation Protocol (SIP) attacks can occur for a variety of reasons and from a variety of sources and can significantly impact an enterprise’s productivity and revenue. Some attacks are designed to bring a network down, such as a denial-of-service (DOS) attack. By constantly flooding the network with SIP messages, bad actors can disrupt or even shut down operations, and much like kidnapping, will only stop once they have extracted ransomware payments from you. To stop these SIP-based attacks you need an SBC to protect the enterprise UC network and to ensure the security and flow of SIP sessions as they traverse between secure and non-secure endpoints.
SBCs are not only responsible for terminating SIP sessions at the network border—they also select the optimal route to deliver that call to its final destination. This selection process, referred to as call routing, is one of many intelligent session control policies that the SBC enforces in order to ensure the smooth and efficient flow of traffic in your enterprise network. That efficiency can result in significant savings for enterprises.
Another key role of an SBC is to mediate SIP communications between different devices. While SIP is an industry-standard protocol, and industry standards are designed to ensure consistency across implementations, the reality is that SIP is not consistently implemented the same by vendors. The problem lies with the way in which the SIP guidelines were written, allowing individual vendors to decide how best to implement SIP through suggestions rather than hard rules. As a result, an IP-PBX from Vendor A and an IP-PBX from Vendor B may “speak” SIP differently, requiring an SBC for translation (known as SIP normalization) to ensure that signaling instructions are properly communicated.
Different kinds of communications networks use different codecs (coder/decoders) to convert voice signals for digital transmission. These different codecs are the reason why voices on your cell phone and your home phone sound different. Various codecs may consume a lot of bandwidth to deliver better sound quality or use less bandwidth to provide faster transmission. Any true SBC has the ability to translate between these different codecs, a process known as media transcoding. Transcoding has two advantages for enterprise networks: it can reduce the network bandwidth that a call consumes by temporarily translating a high-bandwidth codec into a lower bandwidth codec, and it can improve voice or video quality by translating communications into a codec that the end-user device natively supports. This latter advantage is especially important as more enterprises move to high-definition (HD) voice, which often requires transcoding but in return delivers a measurably better experience for call center customers.
SIP communications traffic will continue to rise as more enterprises adopt a Bring Your Own Device (BYOD) strategy that introduces more SIP-based smartphones and tablets into the network ecosystem. What this means is that the SBC you buy today needs to be able to handle the growing traffic needs of tomorrow, and it must scale cost-effectively. Fortunately for enterprises, Ribbon offers the most extensive range of SBCs with different session scalability, from a few sessions to several thousands of sessions. As you can see, choosing an SBC is more than an IT decision, it’s a business decision. Today’s enterprise SBC is a vital communications solution that enables higher quality voice and video, provides greater flexibility in delivering multimedia applications to customers and employees, while providing cost efficiencies that dramatically reduce telecommunications fees and network management complexity. With Ribbon SBCs, you get the depth of security you need for UC while also providing intelligent session controls and interoperability that benefit you from Day 1. If you want to learn more, here is a great introductory document to on SBCs. And, check back soon to read my next blog on why a firewall will not properly secure your UC network.

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With Azure SQL Database, you can create a highly available and high-performance data storage layer for the applications and solutions in Azure. SQL Database can be the right choice for a variety of modern cloud applications because it enables you to process both relational data and non-relational structures, such as graphs, JSON, spatial, and XML.

Azure SQL Database is based on the latest stable version of the Microsoft SQL Server database engine. You can use advanced query processing features, such as high-performance in-memory technologies and intelligent query processing. In fact, the newest capabilities of SQL Server are released first to SQL Database, and then to SQL Server itself. You get the newest SQL Server capabilities with no overhead for patching or upgrading, tested across millions of databases.

What We Do

Cybermax was Implementation Ribbon SBC 1000 in Lamongan Shorebase for integration with Microsoft Teams.

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