What is a Hosted PBX and Prices

Hosted PBX/ virtual PBX definition:

A hosted PBX, also called virtual PBX, is an advanced VoIP telephony system that allows enterprises of all sizes to have multiple phone users, using extensions managing all communications. 


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Hosted PBX help enterprises manage their phone system by creating phone extensions, adding phone numbers, call queues, automatic attendant and routing phone calls.​​ 


Enterprises can manage easily and with no need of technical knowledge their hosted PBX (and therefore their phone system) from their online control dashboard. 

Hosted PBX is a cloud based service and all extensions connect to it through the Internet. Both incoming and outgoing phone calls connect through the virtual PBX that handles them as configured. 

hosted pbx

Some hosted PBX allow enterprises to add mobile phone numbers to call queues to answer phone calls; and some VoIP providers even offer apps to make phone calls from smartphones, with no need of internet access,  using the PBX system. 




1. What can I do with a Hosted PBX


Hosted PBX allow all sized businesses to have a complete telephony system and set it up according to the enterprise's needs. Employees will be able to connect to the phone system from different locations. Furthermore, it includes lots of features such as automated greetings, auto attendant, call transfer and divert, music on hold, conference calls and much more. 


Funcionalidades centralita virtual

  • Extension creation
  • Extension organization by departments
  • Multiple phone numbers
  • Phone numbers from other estates and countries
  • Usage of mobile phone numbers
  • Simultaneous phone calls
  • Working hours
  • Automated greetings
  • Call routing
  • Automatic Attendant (IVR)
  • Music on hold
  • Call transfer, call divert
  • Unify locations
  • Connect remote employees
  • Incoming and outgoing phone call rules
  • Share flat rates
  • Call Block
  • Much more


Each VoIP provider has its own options and features included in their hosted PBX plans. Here you can check some of the key features of hosted PBX:



Manage several phone numbers in an enterprise+ info

Hosted PBX allow enterprises to use several phone numbers in an enterprise​.

Create phone extensions for users​+ info

Each user will be using an extension that connects to the PBX and will have the ability to call and answer phone calls. 

Answer several phone calls at the same time​+ info

This is a key point for every enterprise as their phone system should be able to handle every phone call in rush hour. Employees should be able to make phone calls and customers should be able to call you even if employees are busy. In this case, they will be waiting in a call queue until someone gets free.

The number of simultaneous phone calls a hosted PBX can handle depends on the number of hired channels. As a VoIP customer, enterprises can add more channels to its system as needed.

Use phone numbers from other states or countries​​+ info

Most VoIP companies provide their users with phone numbers from different states and countries and can be used from any location.

Lots of times these phone numbers are called virtual phone number due to the ability to be able to be used from any location with Internet access.

For enterprises with foreign customers is a must to have phone numbers from the countries their customers are from so that they can call the enterprise doing a local phone call.

Automated Greetings, and other messages​ + info

This is one of the most used feature of hosted PBX. It´s a recorded locution that customers listen to when calling the enterprise.

It allows enterprises to show their customers they have called to the right place and it improves their brand image as only professional enterprise use it.

Automated opening hours
+ info

You can set automatic opening hours when so that your phone system adapts to your enterprises schedules. Normally the hosted PBX will show a different message to callers based on the hour; and it can even route the call to one or other place based on the time.

Auto attendant (IVR menu)​+ info

Call transfer​+ info

Call transfer is also a very used feature that allows employees to redirect a phone call to another department or colleague. Some hosted PBX even allow to transfer phone calls to mobile numbers.

Without it, customers would have to hang up and call back in order to get in touch with the right person/department.

Call queues and hunt groups​+ info

These 2 features allow enterprises to organize extensions into groups to unite departments and distribute incoming phone calls.

Unify offices and remote workers​+ info

Enterprise can unify the phone system of their different locations using a single hosted PBX for all their offices. Most VoIP providers offer free internal phone calls to their enterprises users, so that they can call from office in EEUU to the office in Europe with no charge. 

Advanced call management​+ info

Cloud PBX can be set up in lots of different ways to handle incoming phone calls. Enterprises set up their PBX to adjust it to how they operate.


You can use the auto attendant to send phone calls to the right person/department and, if case nobody answer, you can still redirect it to another extension/hunt group or even mobile number. You can redirect phone calls to a department based on the number they have call to or even based on the number that is calling.


2. How does a Hosted PBX work? 

Key Points:

  • the hosted pbx is not in your enterprise: it's online
  • there is no need to spend your money in buying a pbx (hardware)
  • there is no need of maintenance: your voip provider takes care of it
  • you can set up your hosted pbx using a computer with Internet access
  • phone devices connect to the hosted pbx 

On the image you can see how a Hosted PBX works. 


On the top it's your VoIP provider and your Hosted PBX with all your phone numbers. You access it throught the Internet and gives you phone line. 


Offices at different locations connect to the same hosted PBX throught the Internet: a remote user with a smartphone, offices and a remote employee. 


Phone extensiones can be located on different places and connect to the same hosted PBX through Internet connection. 



Your hosted PBX contains all your phone numbers and information about how to handle phone calls. It also provides phone line to each extension.

Each phone call that is done from and to the enterprise goes through the PBX. Based on different rules it decides what to do with the phone call, which locutions to show and much more.

Phone extensions are always connected to the hosted PBX through the Internet. This allows enterprises with offices in different locations to share the same PBX to handle all phone calls and to provide phone line to every extension.




Each time someone calls the enterprise the hosted PBX handles the call and checks different information such as the phone number they've called, the date and time to decide how to manage the phone call. Then it will show a locution and route the phone call to the pertinent department/extension.

When a user makes a phone call the hosted PBX will specify the public phone number it must show. PBX can also block certain phone calls based on destination or in time and date.



3. Hosted PBX Requirements

Hosted pbx are voip systems and need to meet 2 requirements: 

  • internet connection
  • devices to handle phone calls

1. Internet Connection

Extensions need to connect to the hosted PBX through the Internet to have phone line.

Internet connection types:

  • Cable
  • ADSL
  • 4G
  • WiMAX
  • 3G: not recommended

The bandwidth needed for your VoIP system depends on the number of simultaneous calls that are going to be done. For each phone call it's recommended 1mbps down/up.

2. Devices to handle phone calls

Hosted PBX users need to have devices with Internet access to use the VoIP line service.


4. Cornerstones of hosted PBX providers

Check out these 5 key points before selecting a voip provider to make sure you will have a quality hosted pbx: 

  • performance guarantee​
  • complete online dashboard​
  • customer support​
  • user guides and tutorials​
  • servers in spain or nearby​


1. Complete Online Dashboard​

Enterprises phone system have to be reliable and you must be sure that the VoIP provider you are going to hire is not having frequent system outages that will stop your communication services. No phone line for 2 hours can mean an incredible lost of money and resources for an enterprise.​

You can check this by making a search on Google.​


2. Complete Online Dashboard​

It's really important to have access to a complete online dashboard to manage everything in your hosted PBX, from call reports to IVR, call queues and extensions management.


Check which features and actions you can manage from your online dashboard. 


2. Customer support

Customer support is the cornerstone of enterprise's phone services. When choosing a VoIP provider for your hosted PBX make sure they have a good customer support that really care about helping their users.

If there are no technicians in your enterprise make sure your VoIP provider will set up the virtual PBX for you.


3. User guides and tutorials​

Best VoIP providers make documentation to help their users manage their services. For big changes you will probably ask your customer support and for small things you may want to them yourself. And even more when changes are frecuent.


5. Servers in Spain or nearby​

If your enterprise is located in Spain you will want your VoIP provider to have their servers located in Spain and not in USA. The closer the servers to your company, the better quality phone calls will have.

When using a server located in another country (the furthest, the worst) the voice travels to that server and then back to you on each phone call. And this usually means delays.




5. Phone numbers for Hosted PBX

phone numbers that can be used with a hosted pbx:

  • fixed geographical phone numbers​
  • mobile phone numbers​
  • remium rate numbers
  • international fixed phone numbers
  • nomad phone numbers
  • virtual phone numbers
  • portability

Hosted PBX allow you to use more types of phone numbers than traditional PBX, improving how you can communicate with your customers and partners.




Fixed phone numbers​+ info

Enterprises using hosted PBX have an advantage agains those using analog telephony as they can use phone numbers from other locations.

You can buy fixed phone numbers from other estates and use, for example, a phone number from Madrid while your enterprise is located in Barcelona. You can even share a phone number between offices located in different places.


Mobile phone numbers​+ info

Some VoIP providers allow you to use even mobile phone numbers. The use it's not very extended on hosted PBX. 

Premium rate numbers: 900, 901 and 902​+ info

Even though premium phone numbers with higher rates than usual are being used less and less (customers don't like them) some enterprises may still want to use them for several reasons.

International phone numbers​+ info

Enterprises can use fixed phone numbers from the countries where they sell so that their customers can contact the company by doing a local phone call.

It's a lot easier to sell products and services in another country when customers have the security that they can call you at a normal rate.

Nomadic phone numbers: 51+ info

Nomadic phone numbers from Spain are those who start on 51 and are not associated with any province.  

Virtual phone numbers+ info

Sometimes phone numbers used with VoIP telephony are called virtual phone numbers: fixed, mobile, premium and international phone numbers.

The reason is that when using a phone number with VoIP it's no longer fixed to a location and you can use it from anywhere with Internet connection. 

Phone number portability​+ info

Enterprise can port the traditional phone numbers to VoIP and also the other way round. The process is always the same: you ask for the number portability to your new provider and it will take care of all the process.


6. Migration process to Hosted PBX

Enterprise migration from traditional telephony to voip with a hosted pbx is an easy and fast process that allows enterprises to set everything up and start using it before making the portability of the phone numbers.

Check out the 7 steps to ensure a save and fast migration to voip hosted pbx: 

The key point of the process is to set everything up and start handling incoming and outgoing phone calls with the new system before the phone number portability so that not even the employees will perceive the change.  


1. Buy a hosted PBX and VoIP Phones

Buy a hosted PBX with a VoIP provider and all the VoIP devices you need. 

2. Set up the hosted PBX and phone extensions 

Set up the hosted PBX and create all the extensions you need for your users. You will have to set up working hours, greeting, call queues, auto-attendant, etc.

3. Set up VoIP phones/devices

Set up each VoIP phone/device with an extension. You don't need to set up all of them but is recommended so that you can verify all of them are working perfectly.

4. Test you PBX

Use your new phone system and check everything is working as planned. Once you are done with the testing: 

5. Phone portability request

Make a request to port your phone numbers to your VoIP provider. If you are going to port  a phone number that is linked to your Internet connection make sure make sure with your current provider what will happen with your Internet connection. If they will cancel also your Internet connection try to get another number with them and associate it to the Internet. 

You will have to move to the next step before right after you request the phone portability and before the portability it's over.

6. Forward phone calls to a provisional phone number

The day before your phone numbers are going to be ported to your new provider you have to forward all phone calls to a provisional phone number on your new hosted PBX system.

This way you ensure no one will even notice the change as users will be using the new VoIP system both for incoming and outgoing phone calls even before the portability is over. 

7. Successful Migration to VoIP hosted PBX  

Once your phone numbers are with your new VoIP provider the migration it's over and you just have to delete the provisional phone number your where forwarding the phone calls to. 

No additional changes are needed and all your new telephony system is now using VoIP and your Hosted PBX. 



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