SBC 2000™ Session Border Controller


  • Maximum IP-IP Calls: 600
  • Calls Per Second: 4
  • Maximum E1/T1 Channels: 480
  • Maximum Analogue Channels: 48
  • Optional SBA: Optional SBA
  • Media Transcoding: Media Transcoding
  • TLS/SRTP Support: TLS/SRTP Support

The Sonus SBC 2000 is an advanced SBC designed to help medium-sized enterprise networks safely and cost-effectively embrace the new world of SIP-based communications, such as Voice over IP (VoIP). The SBC 2000 delivers all of the features you would expect from the Sonus family of SBCs, including robust security, high availability and proven interoperability with leading business solutions like Microsoft Skype for Businuess Server. The Sonus SBC 2000 also allows calls to go through even when the wide area network (WAN) goes down, with built-in survivability for Microsoft and BroadSoft. The SBC 2000 configurations are designed for ease of deployment and growth. Session and T1/E1 port expansion is remotely enabled via a simple license, minimizing the need for a truck roll and on-site technician.



Key Differentiators:

  • Superior Survivable Branch Appliance (SBA) functionality through a public switched telephone network (PSTN) or a 3G/4G connection
  • Integrated quality monitoring for an entire Microsoft Skype for Businuess call to proactively monitor and troubleshoot quality of experience (QoE) issues
  • Microsoft Skype for Businuess qualified in several categories, including SBC and Survivable Branch Appliance
  • Skype for Business 2015 qualified for Enhanced Gateway


  • Enterprise security against IP-based attacks
  • Topology hiding, user privacy
  • Superior Microsoft Skype for Businuess connectivity and survivability for branch offices
  • Connection for analog phones
  • PSTN trunking, including T1/E1
  • Signaling and media interworking, including multi-vendor PBX and IP PBX interoperation
  • Connection to service provider SIP trunks with signal and media conversion for reliable interconnect
  • PBX, IP PBX and Cloud Unified Communications network migrations
  • PSTN fallback (when the WAN is down)


  • Easy-to-use Web GUI for provisioning and management. Enterprise Management System and REST API for rapid provisioning and management of large deployments
  • Call Admission Control (CAC) to deny excessive calls based on session establishment rate per trunk group
  • End-to-end support for Microsoft Skype for Businuess quality of experience (QoE) monitoring
  • Microsoft Skype for Businuess, Lync 2013 and Lync 2010 qualified in multiple categories, including SBC, SBA, E-911 ELIN Gateway and Enhanced Gateway, in addition to Microsoft Office 365 Exchange Unified Messaging qualified
  • Advanced call routing features such Active Directory/Lightweight Directory Access Protocol (LDAP) server routing integration, onboard call forking (“forks” a single call from any source to 8 unique destinations) and other flexible routing options



  • Maximum number of total concurrent calls: 600
  • Maximum number of TDM-to-SIP calls: 480
  • Maximum number of SIP-to-SIP calls: 600
  • Maximum number of transcoded sessions (based upon codec type): 600
  • Maximum number of total concurrent calls for Survivable Branch Appliance (SBA): 240

Call Set-Up

  • Maximum call set-up rate: 4 cps


  • Maximum number of registered users: 1,000


  • Maximum number of TLS sessions: 600
  • Maximum number of SRTP sessions: 600

Business Continuity

  • PSTN fallback when WAN is down
  • Survivable Branch Appliance (SBA) for Skype for Business and Lync
  • Resilient Branch Appliance (RBA) for Skype for Businuess survivability over 3G/4G
  • Local survivability with BroadWorks
  • Multiple SIP trunking service provider support for redundancy
  • Site survivability through built-in SIP registrar ITSP E911 support
  • Redundant Ethernet ports and multiple spanning trees


  • Qualified as a Survivable Branch Appliance for Microsoft Lync 2013, Lync 2010, and Skype for Business deployments
  • Qualified as an Enhanced Gateway for Lync 2013, Lync 2010, and Skype for Business deployments
  • Skype for Businuess, Lync 2013 and Lync 2010 qualified for SBC and E-911 ELIN gateway
  • Microsoft Office 365 Exchange Unified Messaging qualified
  • Non-Lync SIP client user state reporting (e.g. presence, user busy, etc.) to SfB clients
  • Microsoft SCOM support
  • Maximum number of concurrent calls deployed as Microsoft Skype for Businuess, Lync 2010 and Lync 2013 Survivable Branch Appliance: 240
  • Validated as interoperable with BroadWorks Release 19.sp1 and compatible with BroadWorks Releases 18.0, 18.sp1, 19.0 SIP interface