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VoIP & Enterprise Telephony

Voice as a designed service — including survivable local call processing so a building keeps dial tone when the path to the central platform fails.

Also known as VoIP, SRST, IP Telephony

Left to right is time. Each row is one of the 11 disciplines this one worked alongside, ordered so kindred disciplines sit next to each other rather than alphabetically — a landscape only means anything if neighboring rows belong together. Height is the work running in that domain in that year, weighted by what failure would have cost — life-safety ×3, a statutory obligation ×2.2, the estate itself ×1.5, an evaluation ×1. Every project declares which of those it was, so each ridge traces to an entry you can open and disagree with. Only the work that used this technology is counted, so what shows here is the company it kept rather than the record around it. Height and color are on the record-wide scale rather than this page’s own, so a modest estate draws a modest landscape and any two of these pages can be read against each other.

VoIP across the City of Jacksonville estate — 6,000 telephones — and as a component of the Duval County Courthouse and Ed Austin State Attorney’s Office programs.

The design principle that recurs is survivability at the edge: the courthouse kept local call processing so the building held dial tone if the path to the central voice platform failed, and the SOCOM transportable kit carried survivable remote site telephony with analog extensions and PSTN breakout so a site kept voice when the span went down rather than losing it with the data.

Applied in

  • City Council Chamber AV and IT Architecture2003–2024Audio, video, voting and broadcast systems for a chamber where proceedings are a public record — owned for twenty-one years.
  • Ed Ball Hearing Room — Backup Council Chambers2022–2024A committee room specified to run a City Council meeting if the Chamber were unavailable — which makes it a continuity facility for the legislative body, not a meeting room.
  • Library Wireless Program2006–2023From reported dead spots to an engineered coverage program, on an estate where the wireless carried staff safety devices.
  • Enterprise Network Access Control2016–2022Seven years from vendor evaluation to a control that could quarantine a port anywhere in the city — and the federated exception handling that made enforcement survivable in a building shared with four other agencies.
  • E911 Caller Location and Backup Answering Point2013–2021Making the dispatcher see a room instead of a phone number — then building a second answering point so the dispatch center was not a single point of failure.
  • Ed Austin State Attorney's Office2010–2017Network infrastructure, VoIP telephony and building automation for the State Attorney's building.
  • Biochemical Manufacturer Converged Network2010–2012Headquarters, an affiliated business and a plant site joined over encrypted tunnels on consumer DSL — where the reliability had to come from the design, because it was not coming from the circuits.
  • Duval County Courthouse Technology Program2008–2012A $12M IT program inside a $350M, 800,000 square foot capital facility, cut over live to a fixed date.
  • Cisco DOCSIS Residential Cable Buildouts2000–2008Greenfield residential cable plant, headend policy, address management and voice — and one public address pool carrying thousands of residents.
  • SOCOM Transportable Wireless Kit2003–2004A two-site voice, video and data package over a point-to-point link where no fixed infrastructure existed.

Documents

Attested by

  • Cisco Specialist Examinations2003 · undefinedFive specialist and technical examinations passed in 2003, mapping directly onto the cable plant, quality of service and voice work of that period.

See also

Also searched as

  • UCaaS
  • unified communications
  • VoIP
  • SIP
  • contact center