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Branch Office Survivability


A network outage can prove to be a nightmare for an enterprise causing loss in productivity and business revenue. Capabilities embedded within Sonus SBCs provide local Skype for Business functionality in the event of a WAN failure, mitigating losses and ensuring business continuity.

Survivable Branch Appliance (SBA)

The Survivable Branch Appliance (SBA) ensures that basic telephony services are available locally in the event that network connectivity at the remote site is lost.

Figure 1: Survivable Branch Appliance

Essential services include:

  • Fallback Public Switch Telephone Network (PSTN) calling
  • Internal enterprise calling – within and between sites
  • Basic instant messaging (IM) capabilities
  • Dial-in (PSTN) conferencing
  • Voicemail

Resilient Branch Appliance (RBA)

The Resilient Branch Appliance (RBA) provides a mobile broadband 3G/4G connection to keep signaling and data layers operational in the event of a WAN outage.

Figure 2: Resilient Branch Appliance

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