SumoFiber Cellular PBX is a mobile business phone solution that adds a dedicated business line to a smartphone your team already carries — using the device's native dialer, native texting, and native caller ID. Two phones in one device. Personal privacy stays personal. Your brand stays consistent.
SumoFiber Mobile is a cellular connection added to the smartphone your team already carries. Cellular PBX uses the device's native dialer, texting, and caller ID — but lets your team switch to their business line at any time. Two phones, built into one device.
Your team's personal information stays private. Your brand identity stays consistent on every customer call. And there's one less device to provision, track, and replace — because the second line lives on the phone they already use every day.
Every capability your team needs to act like a unified business — running on the cellular device they already carry, with no second handset and no separate app to learn.
Use the smartphone's native dialer, text, and caller ID — while still maintaining your business identity and protecting your team's personal line.
Two cellular plans on one device means redundant carrier coverage. Reduce your chances of being out of service when a single carrier drops a tower.
Send and receive customer messages from the smartphone's native messaging app — but every text goes out on your business line, not their personal one.
Enable call recording on business calls just like you would on an office phone. Use it for compliance, training, and capturing the details that matter.
Access full call activity in SumoFiber Mobile reporting — when calls were placed, who they were with, and the customer detail you need to follow up.
Most "mobile business line" solutions ask your team to install an app, learn a new dialer, and live with second-class call quality. Cellular PBX takes a different approach: it lives below the operating system, so calls and texts go through the dialer and SMS your team is already using — with the business line on top.
Personal numbers never appear on customer caller ID. Personal texts never get archived in your business reports.
Two SIMs, two networks. When one carrier drops, the other carries the call — with no manual intervention.
One phone in every pocket. No second handset to provision, distribute, charge, or replace when it's lost.
Active line
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Personal
Carrier A
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Carrier B
Talk to a SumoFiber Mobile specialist about rolling Cellular PBX out across your team — porting numbers, configuring carriers, and getting the first line live on day one.
SumoFiber Cellular PBX is a mobile business phone solution that adds a dedicated business line to a smartphone your team already uses. It pairs a second cellular plan with the device's native dialer, texting, and caller ID — giving employees two phones in one without requiring a separate handset or a downloaded app.
No. Cellular PBX is delivered through a second cellular profile on the device, so your team places business calls and sends business texts using the smartphone's built-in dialer and messaging app. Reporting and call recording are accessed through the SumoFiber Mobile portal.
Cellular PBX puts two cellular plans on the same device — typically on different carrier networks. When one carrier loses signal, calls and texts route over the other carrier within seconds, with no manual intervention. In marginal-coverage areas like rural sites, dense buildings, and basement levels, this commonly eliminates the single-carrier dead zones that cause dropped calls.
Yes. Call recording is available on business-line calls just as it is on a SumoFiber Hosted PBX desk phone. Recordings are accessible through the SumoFiber Mobile reporting portal for compliance, training, and customer-detail review. Always follow your local jurisdiction's call-recording laws when enabling.
Cellular PBX works with most modern unlocked iOS and Android smartphones that support a second cellular profile (eSIM or dual-SIM). Our team will validate compatibility for your specific device fleet during the onboarding consultation.
Hosted PBX is the full cloud business phone system — desk phones, auto-attendants, conferencing, and the office number. Cellular PBX is the mobile-line extension of that system: a business line that lives on a smartphone using the device's native apps. Most customers run both, with Cellular PBX added to the seats that need true mobility.
Cellular PBX is available to SumoFiber business customers across our Utah, Idaho, and Montana service footprint, and to existing Hosted PBX customers nationally. Talk to a SumoFiber business specialist to scope a deployment for your team.
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