What is a hosted phone system?

A hosted phone system is a cloud PBX managed entirely by your provider. Softtop hosts all switching, routing, voicemail, and IVR infrastructure — you manage it through a web dashboard with no on-site hardware required.

How is it different from an on-premise PBX?

An on-premise PBX requires servers, maintenance contracts, and on-site IT. A hosted system moves all that to the cloud — lower upfront cost, faster deployment, and automatic software updates with no manual patching.

Can I scale users up or down instantly?

Yes. Seats can be added or removed through the self-service portal at any time. Billing adjusts automatically — there are no hardware orders or engineer visits required to scale the system.

What US phone number types are available?

Local numbers in every US area code, toll-free (800, 888, 877, 866, 855, 844), vanity, and international DIDs in 150+ countries are all available for instant provisioning from the dashboard.

Yes. A multi-level visual IVR builder with working hours routing, holiday schedules, and AI Receptionist fallback is included on every plan at no additional cost.

What uptime does Softtop guarantee?

Softtop guarantees 99.999% uptime — fewer than 5 minutes of potential downtime per year — backed by 70+ global Points of Presence and automatic failover routing.

Hosted Phone System · Cloud PBX

A cloud PBX without the PBX headache.

Full hosted phone system with US numbers, IVR, and five-nines uptime. Zero on-prem hardware.

Start Trial →Pricing →

99.999% UptimeUS NumbersIVR & Routing70+ PoPs

Cloud PBX Admin

Live

Extensions — 24 seats

101

Sarah K.

Sales

4:22

102

Marcus T.

Support

Available

103

Priya L.

Sales

1:07

104

James W.

Available

105

Dana M.

Support

8:51

What ships with every line

Everything a modern PBX should do.

Local, toll-free & vanity US numbers

Any area code. All 7 toll-free prefixes available.

Multi-level IVR with time-of-day routing

Visual builder, holiday routing & after-hours fallback. Powered by our auto-attendant.

Ring groups, hunt groups & smart queues

Route by skill, region, or longest-idle.

Voicemail-to-email with AI transcription

Read before you press play. Archive searchable instantly.

E911 compliance for every US location

Auto location updates for remote & travelling users.

Desk phone, softphone & mobile on one extension

One extension rings all devices. Call flip mid-conversation.

Migration

Move from legacy to cloud without the drama.

Port your numbers. Keep your existing phones if they are SIP-compliant. Learn how cloud PBX systems replace legacy hardware. Our US onboarding team runs the cutover out of hours so your business never misses a call.

Port your numbers

Free US porting on standard plans. 5–10 business days end-to-end.

Keep existing phones

Most SIP desk phones work out of the box. We certify your fleet before cutover.

Run cutover after-hours

Our US onboarding team handles the swap so daytime traffic never drops.

Live by Monday

Calls answer. Voicemail flows to email. AI transcription on every recording.

Multi-site & branches

Built for multi-site and branch offices.

Per-site IVRs

Each location gets its own greeting, menu, and business hours. Main numbers route callers to the right site before a human picks up — no shared mailbox chaos. See our business phone plans.

Local caller ID

Outbound calls from each branch present a local number. Answer rates climb because customers recognize the area code, not a headquarters line. Compare options side by side.

Time-zone-aware routing

Business hours follow each site's time zone automatically. After-hours calls route to voicemail, on-call staff, or an AI Receptionist — without a single manual toggle.

Branch console

Austin · TX

CDT · 08:00–18:00

Open

Denver · CO

MDT · 08:00–18:00

Open

Seattle · WA

PDT · After-hours

Routing AI

One admin console · per-site IVRs · per-site reporting

Disaster recovery

Call continuity when the unexpected happens.

Softtop auto-fails to backup numbers, cell devices, or alternate branches within seconds. Plans are configured once and tested on demand.

Auto-failover under 2 seconds
Backup numbers, cell devices, alternate branches
On-demand disaster-recovery drills

Live failover · East Region

Routing path

● PRIMARY DOWN

Primary · NYCBackup · ATL (active)Cell fallback (armed)

Failover time

1.4s

Calls re-routed

218

Drops

Customer Voices

Five-nines uptime, zero drama.

US teams replacing on-prem PBXs without missing a call.

-40%

Phone Bill

"The cutover happened on a Saturday night. Monday morning we answered calls like nothing changed — except the bill dropped forty percent."

Marcus Trelane

IT Director, Belford Manufacturing (Ohio)

FAQ

Hosted phone system, answered.

Hardware, porting, E911, uptime, international.

Do I need new phones?

−

No. Most SIP desk phones work out of the box. We will certify your fleet during onboarding.

Is E911 supported?

Yes. E911 is included on all US numbers, with automatic location updates for remote workers.

Can I port my existing numbers?

Yes. US number porting is free on standard plans. See /pricing for full details.

What is the guaranteed uptime?

99.999% guaranteed uptime backed by 70+ global PoPs with automated failover. Every US outbound call is STIR/SHAKEN signed. Combine with our unified communications suite for voice, chat, and video in one platform.

Does it support international calling for our US team?

Yes. International outbound is available to 150+ countries at transparent per-minute rates listed on /pricing.

Cloud calling. Five-nines uptime. Live this week.

Port your numbers, plug in your existing phones, run cutover after-hours.

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