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IVMS Technical Details

Technical Details

IVMS is built upon Avaya's Aura Messaging, a Session Initiation Protocol (SIP) based Unified Communication system. The IVMS architecture is fully redundant, with servers distributed across our eastern and western data centers. This system is fully integrated into our EIPT system, the SGC PBX, and Raleigh area Centrex systems. System connectivity to the EIPT is native SIP to the Avaya Session Manager and to the SGC PBX and Centrex via SIP gateways.

SIP is an open standard protocol, supported by practically every manufacturer of IP Phone, Gateway, Call Manager and IP PBX. It is a key part of Fixed Mobile Convergence (FMC) and Unified Communications. SIP supports any form of real-time communication regardless of whether the content is voice, video, instant messaging or a collaboration application.

Support Documentation

Hours of Availability

This service is available to customers 24 x 7, excluding planned outages, maintenance windows and unavoidable events. Maintenance windows are used only when needed for planned changes that have gone through our Change Management Process. In addition to our Standard Maintenance Windows, site-specific and service-specific changes may be coordinated with customers at non-standard times. Standard operational support hours are from 8:00 a.m. to 5:00 p.m. Monday – Friday EST.

Standard maintenance windows are defined as:

  • 4:00 a.m. to 7:00 a.m. each Thursday
  • 4:00 a.m. to 12:00 p.m. each Sunday