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Resonance Telcom

SIP trunking & business phone numbers

SIP trunking for the phone system you already own

Connect your existing PBX to reliable SIP trunks, add local and toll-free numbers on demand, and manage it all from one straightforward portal.

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Why Resonance Telcom

Cloud SIP trunking, built around how you work

Keep the phones, PBX and internet connection you already trust. We supply the voice connection, the numbers and the tools to run them yourself, with real people behind them when you need help.

  • Up and running fast

    We activate your trunk, hand you the exact settings for your PBX and stay available until your first calls connect. Setup is a short checklist, not a project plan.

  • One portal for everything

    Add channels, order numbers, adjust call routing, review call records and manage billing from a single self-service portal.

  • Keep what you already use

    Bring your own PBX, phones and internet provider. If your system speaks SIP, it works with Resonance Telcom.

  • Clear, predictable pricing

    A flat monthly rate per channel and per phone number. Scale capacity up or down as your call volume changes.

  • Numbers where you need them

    Choose local numbers in the area codes your customers know, add toll-free numbers, and point them at any trunk.

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Experience

Telecom people, not a script

Our team builds and runs voice networks for a living. That is why the portal is simple: the hard parts are handled behind it, and when something does need attention, you reach an engineer who already understands SIP.

About us

Compatibility

Works with the PBX you already run

Resonance Telcom trunks work with any standards-based SIP PBX or gateway. We publish setup guides for the systems we see most.

Don't see yours? If it speaks SIP, it almost certainly works. Ask us.

Ready to move your phones to SIP?

Tell us about your phone system and how many calls you handle. We will put together a plan that fits.

Get a QuoteCall 800-555-0100