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Cloud PBX

A cloud PBX phone system for small business, with texting and fax built in

A cloud PBX, also called a hosted PBX, virtual PBX or cloud phone system, is a business phone system that runs online instead of on a box in your office. Your provider runs the phone switch, and you manage it in an app. PBXflex is a cloud PBX. Every user gets an extension and a local number that rings on a desk phone, the web app and mobile. You build auto attendants (IVR), call queues and ring groups in the same app. Business texting and fax are included on every plan. Plans are month to month, and number porting is free.

  • Desk phone, web app and mobile
  • Texting and fax on every plan
  • Free number porting
  • Month to month, no contract
Illustration of a person at a desk holding a phone open to a text conversation, with a folder of documents and a laptop beside it.

What a cloud PBX is, and the other names for it

PBX stands for private branch exchange. It is the part of a business phone system that gives each person an extension and decides where every call goes. A traditional PBX is a box in your office or phone closet. In a cloud PBX, the same switch runs online and your provider looks after it. In everyday use, cloud, hosted and virtual PBX all name that one idea. Cloud phone system is the everyday name for it.

NameWho runs the phone switchWhere it lives
Cloud PBXYour providerOnline, with no switch in your office
Hosted PBXYour providerOnline, with no switch in your office
Virtual PBXYour providerOnline, with no switch in your office
Cloud phone systemYour providerOnline, with no switch in your office
On-premises PBXYou, or a technician you payA box in your office or phone closet

How a call moves through a cloud PBX

Here are the parts of a call flow on PBXflex. You build each one in the app, choose which ones a call reaches, and change them when your hours or your team change.

  1. Your menu answers on the first ring

    The auto attendant (IVR) greets the caller and offers a short menu: press 1 for appointments, 2 for billing. A separate menu answers outside business hours.

    IVR | Interactive Voice Response
  2. Calls ring wherever your people are

    Each person's extension rings a desk phone, the web app and a mobile at the same time. A caller who knows who they want can reach that person directly.

    User Phone Extension
  3. A ring group rings the right people

    The caller's choice rings several extensions at once, or one after another. The first person to pick up takes the call, and the rest stop ringing.

    Call RingGroup
  4. Or a queue holds callers in line

    For calls that arrive in bursts, a menu option can lead to a call queue instead. Callers wait in order with a greeting and hold music. Each one connects to the next person who becomes free.

    Call Queue
  5. Callers can ask for a callback

    A caller in the queue can hang up and keep their place. PBXflex calls them back when it is their turn.

    Callback Extension
  6. Missed calls land in shared voicemail

    If nobody in a ring group picks up, or the office is closed, the caller leaves a message in a shared voicemail box. Anyone on the team with access can listen and act on it.

    Common Voicemail Box

On-premises PBX vs cloud PBX

An on-premises PBX is equipment you own and look after. A cloud PBX is a service you pay for each month. This table compares the two for a small office, including texting, fax and the fees on your bill.

What to compareOn-premises PBXPBXflex cloud PBX
Upfront hardwareYou buy or lease the PBX and the phonesNo PBX to buy. Desk phones are optional
Who maintains itYou, or a technician you payPBXflex runs the system. You change settings in the app
Adding or removing usersChanged on the box, by you or a technicianIn the app, any time
ContractSet by your phone line and maintenance providersMonth to month. Cancel any time
Keeping your numbersYour numbers stay with your phone line providerNumber porting is free on every plan
Business textingUsually a separate app or serviceIncluded on every plan, from your business numbers
FaxUsually a fax machine on its own phone lineIncluded on every plan, in the app. A fax machine you keep can use a shared-device line for $10 a month
FeesSet by your phone line providerNo administrative or regulatory recovery fee. Taxes and government fees are extra
Where calls ringDesk phones connected to the box, mostly in the officeDesk phone, web app and mobile, at the same time
What it needs to workPower, phone lines and the box itselfPower and an internet connection wherever your phones are

On-site installation, including a VoIP-ready firewall or new cabling, is quoted per site.

What every phone plan includes

Essentials, Business and Enterprise start from the same core. The plans below show what each one costs.

  • An extension for every user, ringing on desk phone, web app and mobile
  • A local phone number for every user on Essentials and Business
  • Business texting (SMS and MMS) from your business numbers, in shared inboxes
  • Fax sent and received in the app, with no fax machine or fax line
  • Telecom credits each month, pooled across your team: 500 per user on Essentials and 1,000 per user on Business
  • A low-volume 10DLC texting campaign
  • One IVR, ring group or shared voicemail on Essentials, and every call-flow feature on Business
  • An E911 address registered for each extension
  • Free number porting
  • Monthly billing, with no contract

Call-flow features

Every user gets an extension. Business includes every other feature here. Essentials includes one IVR, ring group or shared voicemail, and each extra call-flow feature is $5 a month.

Pricing

Cloud PBX plans

Essentials and Business are priced per user and billed monthly, with no contract. Enterprise is quoted. Credits are pooled across your team, so a quiet user covers a busy one. Prices exclude taxes and government fees.

Essentials

$30/user/mo

Calling, texting and fax for a small office with one main number.

  • An extension and a local number for every user
  • 500 credits a user, about 500 minutes, shared by the team
  • Business texting and fax included
  • One IVR, ring group or shared voicemail included
Get started

Business

Recommended

$40/user/mo

Every call-flow feature included, for teams that handle a lot of calls.

  • Everything in Essentials
  • 1,000 credits a user, about 1,000 minutes, shared by the team
  • Call queues, IVRs, ring groups and conference rooms included
  • A toll-free number included
Get started

Enterprise

Custom

For 50 or more users, several sites, international numbers or custom terms.

  • Everything in Business
  • International numbers
  • Custom usage and terms
Talk to sales

See every plan, add-on and rate

What calls, texts and faxes use

One credit is one cent. Your plan's credits are shared by the whole team, and calls, texts and faxes all draw from the same balance. If the balance falls below 100 credits, a pack of 2,500 credits is added for $25. You can switch that off in the app. Credits you buy never expire.

US and Canada call, per minute, in or out1 credit
Toll-free inbound call, per minute3 credits
SMS segment, sent or received2 credits
MMS, sent or received5 credits
Fax page, sent or received2 credits

Moving your phones to PBXflex

You keep your numbers. Here is the order to move in, so callers can still reach you.

  1. Write down how calls work today

    List your numbers, who answers each one, and what should happen after hours. That list becomes your menus, ring groups and queues.

  2. Choose self setup or guided setup

    Self setup in the app is free. Guided setup is $299 for up to 10 users, then $15 a user. We build your IVR, queues and ring groups, port your numbers, register your texting campaign and run a 30-minute training session for your team.

  3. Move your numbers at no cost

    Number porting is free on every plan. Keep your current service running until the move is complete.

  4. Pick your phones, or start without them

    Every extension works in the web app and on mobile. If you want desk phones, a standard desk phone is $89, an executive desk phone is $189 and a cordless DECT phone is $229. You can also rent one for $5 a month, or $9 a month for an executive or cordless phone.

  5. Add a line for each device that rings for a place

    A lobby phone, warehouse phone, paging speaker or analogue fax machine rings for a place, not a person. Each one is a shared-device line, at $10 a month. An existing fax machine can stay in use on one.

Cloud PBX questions

Is a cloud PBX the same as VoIP?

Not quite. VoIP, short for voice over internet protocol, is the technology that carries voice calls over a data network, such as your internet connection. A cloud PBX is a full phone system built on VoIP. It adds extensions, menus, ring groups, queues and voicemail. PBXflex is a cloud PBX, so your calls travel as VoIP and your call flows live in one app.

Are cloud, hosted and virtual PBX different?

In everyday use, no. All three describe a phone system that runs online and is looked after by a provider, not a box in your office. Cloud phone system means the same. PBXflex fits all four names.

Can I keep my phone numbers?

Yes. Number porting is free on every plan. Keep your current service until your numbers have moved, so callers can reach you the whole time. With guided setup, we port them for you.

Do I need to buy desk phones?

No. Every extension works in the web app and on mobile, so you can start without any desk phones. If you want them, a standard desk phone is $89 to buy or $5 a month to rent. Executive and cordless phones rent for $9 a month.

How much does a cloud PBX cost?

It depends on how many people need an extension and which call-flow features you use. On Essentials and Business, you pay one monthly price for each user. Both include pooled credits for calls, texts and faxes. Enterprise is quoted. Self setup and number porting are free. Guided setup is $299 for up to 10 users, then $15 a user. The PBXflex pricing page lists every plan, add-on and usage rate. Taxes and government fees are extra. There is no administrative or regulatory recovery fee.

Is there a contract?

No. Every plan is month to month, and you can cancel at any time. There is no yearly commitment and no cancellation fee.

Can I add users for busy season and remove them after?

Yes. You can add or remove users at any time, with no contract. A tax firm can add preparers before deadline week and remove them when the season ends. Their texts stay in your shared inboxes, so the team keeps the history.

What do I need to run a cloud PBX?

An internet connection where your phones are, and something to answer on: a desk phone, the web app or a mobile. If your office network needs work, PBXflex can quote a configured VoIP-ready firewall and new Cat6 cabling for your site.

What are the drawbacks of a cloud PBX?

It needs an internet connection where your phones are. A slow or busy office network can make calls sound worse. A device that rings for a place, such as a paging speaker or a fax machine, needs its own shared-device line. PBXflex can quote a configured VoIP-ready firewall and new Cat6 cabling if your network needs work.

See how it works on PBXflex

Auto attendants, call queues, business texting and fax in one app, on desk phones, the web and mobile. Number porting is free, and there is no contract.

Questions first? Call (877) 575 - 9527