At first, VoIP IP Telephony designs only took on-premises networks into account. This means you had to install IP PBX equipment locally.

As VoIP evolved and cloud technology took over local infrastructures, hosted VoIP was introduced.

Here is a list of differences between traditional PBX telephony and a hosted PBX VoIP System:

Traditional Telephone

Hosted VoIP

Phone Number Setup

Registration takes days or weeks

Setup requires onsite presence

High fees for number

Numbers available only in your area code

Toll numbers expensive

Registration takes minutes to hours

Setup does not require onsite presence

Minimal to zero fees for number registration

Any area code in the world or toll number

Can port number

Number Portability

Can take days to put on service

Easy and quick process


Transfer calls to a home or mobile number

Stay reachable with the same number on any connected device (softphone)


Complex setup

Voice quality degrades when more people join

Bridge maintenance requires skills and time

Easy bridge setup

Managed with desktop software or web-based console


Less price flexibility

Calls billed upon length of wire rented and minutes spent

Adding features is expensive

Pay-as-you-go plans that fit your needs

Low to zero call costs, pools of minutes offered

Most popular features included, addon costs are fair


Costly PBX equipment needed

Hosted VoIP does not require any on-premises equipment

Usage and Maintenance

Provisioning by the provider

Complex scaling

Self-service dashboard for provisioning

Easy scaling

COMMbits Cloud PBX

Always-On, Complete and Reliable Cloud PBX Business IP Telephony System Delivered Right from the Cloud

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