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  • Industries

    The price model is the same for every business. The routing, the devices and the problems are not.

    • K-12 EducationClassroom phones, 911 by room, and a summer cutover.
    • Multi-Location RetailOne call pool shared across every store you run.
    • LegalIntake routing so the late Friday call gets answered.
    • Professional ServicesClient calls routed so the right person picks up.
    • Medical, Dental and VetA call queue that holds while the front desk is busy.
    • Home Services and TradesOverflow routing for the week of calls that lands in a day.
    • Property ManagementLeasing and maintenance calls routed apart.
    • ManufacturingA plan for the gate phone, the paging horn and the dock.
    • AutomotiveSales calls separated from service status calls.

  • Locations

    Six offices with engineers on staff, each serving its whole state. The system is hosted, so wherever you are, you get the same people.

    • OklahomaHeadquarters in Muskogee. Serving the whole state.
    • TexasOffice in Dallas. Serving the whole state.
    • FloridaOffice in Cocoa Beach. Serving the whole state.
    • GeorgiaOffice in Lawrenceville. Serving the whole state.
    • LouisianaOffice in Belle Chasse. Serving the whole state.
    • New YorkOffice in Syracuse. Serving the whole state.

  • Resources

    Reading for anyone working out what a phone system should cost and how to switch to one.

    • White PapersLong-form reading on phone system cost and design.
    • BlogShorter articles on business phones and 3CX.
    • GuidesStep-by-step help for switching and running your system.
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BlogSep 10, 2026

How VoIP Concurrent Call Limits Evolved

ยงArticle

9 min read

Published Sep 10, 2026

All articles

Learn how VoIP call limits evolved from rigid channels to dynamic scaling, and discover the hidden factors that now quietly determine how many calls you can truly handle.

Twenty minutes, and you will know.

You will get your size, your monthly rate, your license line, and a straight answer about your cutover.

Book a 20 minute callSend a quote request

Or call (888) 223-1094

Spark VoIP

3CX Titanium Partner.

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105 N York St, Muskogee, OK

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