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The Sonus SBC 1000™ Session Border Controller

Communications devices are growing smaller and smarter, so we made a session border controller (SBC) that was smaller and smarter, too.

Sonus 2000

Sonus Session Border Controllers (SBCs) help the world’s leading enterprises reduce communications costs, enable Unified Communications (UC), and protect their networks against Internet Protocol (IP)-based attacks. Now small businesses and branch offices can enjoy the same industry-leading SBC technology in a right-sized appliance designed specifically for their networks. The SBC 1000 Session Border Controller is an advanced SBC independently verified for performance, delivering robust security features and interoperability between disparate networks. The SBC 1000 The Sonus SBC 1000 configurations are designed for ease of deployment and growth. Both session and port expansion can be remotely enabled via a simple license, eliminating the need for a truck-roll and an on-site technician. The Sonus SBC 1000 also features a wide range of I/O and call capacities as well as built-in survivability for Microsoft and BroadSoft, so calls go through even if the wide area network (WAN) goes down.

System Capabilities

  • Sessions
    • Maximum number of SIP-to-SIP calls: 160
    • Maximum number of TDM-to-SIP calls: 84
    • Maximum number of total concurrent calls: 160
    • Maximum number of transcoded sessions (based upon codec type): 160
    • Maximum number of total concurrent calls for Survivable Branch Appliance (SBA): 100
  • Call Set-Up
    • Maximum call set-up rate: 4 cps
  • Registrations
    • Maximum number of registered users: 600
  • Encryption
    • Maximum number of TLS sessions: 160
    • Maximum number of SRTP sessions: 160
  • Business Continuity
    • Bypass relays (PRI-PRI, FXS-FXO) for emergency calls (e.g., 911)
    • PSTN fallback when WAN is down
    • Survivable Branch Appliance (SBA) for Skype for Business and Lync
    • Resilient Branch Appliance for Lync 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
    • Generate call progress tones — ringback, busy, re-order
    • RTP inactivity monitoring (dead call detection)
    • RTP pass-through and media bypass
    • Caller ID support

Management Capabilities

  • Operations, Administration and Management
    • Single, secure, web-based GUI
    • REST-based programmatic interface to remotely manage multiple SBC 1000s
    • SNMP v2/v2c for comprehensive network management using third-partymanagement systems
    • Configuration backup and restore; Configuration upload from one site to another; Partial configuration import/export through REST
    • CDR Reporting
    • Microsoft SCOM support
    • Syslogs and local logging for troubleshooting, with support for free Sonus LX syslog server and log parser tool
    • Historical Stats and TCAs
  • Authentication
    • Local user (User name/password)
    • Active Directory
    • RADIUS

Media Services

  • G.711, G.722, G.722.2 (AMR-WB), G.723.1 (5.3 kbps,6.3 kbps), G.726 (32 kbps), G.729A/B (8 kbps), T.38
  • Transcoding
  • Video
  • T.38 with CNG tone detection
  • DTMF/RFC4733; Inband DTMF; SIP INFO/RFC-2833
  • Voice Activity Detection (VAD)
  • G.168 Echo Cancellation with standard 128 ms tail length
  • Comfort noise generation and packet loss concealment
  • Automatic call type detection — voice, fax or modem
  • Music on-hold
  • SIP routing
  • Based on source and destination IP address
  • Fully Qualified Domain Name (FQDN)
  • Detect proxy failure and route to alternate paths
  • Re-route on failure based on full Cause Code re-routing on T1/E1 trunks
  • Lync E911 support; SIP/PIDF-LO passthrough and ELIN Gateway


  • Maximum number of signaling groups: 100
  • TDM Signaling (ISDN): AT&T 4ESS/5ESS, Nortel DMS-100, Euro ISDN (ETSI 300-102), QSIG, NTT InsNet (Japan), ANSI National ISDN-2 (NI-2)
  • TDM Signaling (CAS): T1 CAS (E&M, Loop start); E1 CAS (R2)
  • Back-to-Back User Agent (B2BUA)
  • SIP Message Manipulation (SMM)

Protocol Support

  • SNMP
  • NTP
  • SIP over UDP, TCP, TLS
  • DNS
  • RIPv2, OSPF as dynamic IP routing protocols
  • DHCP server
  • DHCP client
  • Asynchronous DNS for SIP
  • NAT
  • Support for Reason Header

Routing / Policy

  • Maximum number of call route entries: 1,000
  • Active Directory/LDAP-based call routing
  • Routing based on quality metrics
  • Least cost routing
    • Event-based action set
  • On-board call forking (up to eight end points)
  • Supplementary services
    • Call hold
    • Call transfer (blind & assisted)
    • Call forward
  • Embedded policy/routing engine
  • Optional centralized policy/routing via Sonus Centralized Policy Server (PSX Server) using SIP
  • Screening, blocking, routing, presentation, call
  • type filters
  • Route prioritization
  • Leading digit routing; International routing;
  • URI-based routing
  • Digit manipulation (name/number manipulation using regular expression and Active Directory lookup)


Quality of Service (QoS)

  • Bandwidth management
  • Call Admission Control (CAC) (deny excessive calls based on static configuration for bandwidth management)
  • P-time mediation for rate limiting
  • Per-call statistics
  • Diffserv/DSCP marking

Packet Network Time Source

  • Network Time Protocol (NTP) per RFC1708


  • Qualified as a Survivable Branch Appliance for Microsoft Lyne 2010, Lyne 2013, and Skype for Business deployments
  • Qualified as an Enhanced Gateway for Lyne 2013, Lyne 2010 & Skype for Business deployments
  • Lyne 2013 and Lyne 2010 qualified for SBC and E-911 ELIN Gateway
  • Microsoft Office 365 Exchange Unified Messaging qualified
  • Non-Lyne SIP client user state reporting (e.g., presence, user busy, etc.) to Lyne clients
  • Microsoft SCOM support
  • Lyne Quality of Experience (QoE) monitoring collects call RTP stream data and sends to Lyne QoE server
    • Round Trip Delay
    • Jitter (max, mean)
    • Packet Loss (max, mean) Packet Loss Rate (max, mean) Burst (density, gap density) MOS-LQ, MOS-CQ
    • Signal/Noise Level

Server Module


  • 4 GB of DDR3 with ECC (Error-Correcting Code)


  • Intel® Celeron™ P4505 1.8 GHz processor


  • Maximum number of concurrent calls deployed as Microsoft Lyne 2010 and Lyne 2013 Survivable Branch Appliance with Intel® Celeron™ P4505 1.8 GHz processor: 100
  • Validated as interoperable with BroadWorks Release sp1 and compatible with BroadWorks Releases 18.0, 18.sp1, 19.0 SIP interface

Additional Hardware Specifications

Front Panel

  • Status Indicators Front Panel LEDs
    • Power
    • Alarm
    • Peer Node
    • Ready
  • Dual USB 2.0 interface for main SBC board
  • Additional dual USB 2.0 ports for ASM (optional)
  • WAN and LAN Interfaces
    • 2 x 10/100/1000 BASE-T Ethernet ports with VLAN support
    • Auto-MDIX

Rear Panel

  • Physical PSTN Interfaces
    • Up to 2 T1/E1 CAS/PRI digital ports
    • Up to 12 BRI digital ports
    • Up to 24 FXS (Foreign exchange Station) analog ports
    • Up to 8 globally compliant FXO (Foreign exchange Office) analog ports, expandable to 24 ports


  • 1U, rack mount
  • Inches: 17.5″ Wide x 1.75″ High x 12″ Deep
  • Centimeters: 44.4 Wide x 4.4 High x 30.5 Deep

Chassis Mounting Options

  • EIA-standard 19″ equipment rack with 2 or 4 posts

AC Power Option

  • Input Voltage: 100-240 VAC nominal, auto-switching, 47-63 Hz
  • AC Maximum Input Current: 1.25A at 115 VAC; 0.63A at 230 VAC
  • AC Input Voltage Range (Nominal): 100-127 VAC and 240 VAC
  • Max Power Consumption: 144 W

Cooling System

  • Internal forced convection

Weight Maximum Fully Populated

  • 12.5 lbs. (5.67kg)


  • 5 to 40° C Operating
  • -40 to 70 ° C Storage
  • 5 to 85% non-condensing operating humidity




  • TLS for signaling encryption
  • Secure RTP (SRTP) for media encryption
  • Built-in VoIP firewall
  • Windows Firewall for Application Solution Module to secure SBA function of Lync
  • Topology hiding; User privacy
  • Prevention of Denial-of-Service (DoS) and Distributed DoS (DDoS) attacks
  • Dialed Number Identification Service (DNIS), Calling Line Identification (CLID), Call type pre-authentication
  • Traffic separation (VLAN interface separation)
  • Line rate malformed packet protection
  • Access Control Lists (ACLs)
  • IPsec VPN tunnel
  • NAT/NAPT and port forwarding, NAT traversal

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