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Enterprise Grade Phone System Zentrex

Compliance first cloud VOIP solutions for your communication needs. Direct purchase plans available now. Only pay for what you need and scale along.

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Zentrex is Hoiio's in house proprietary Cloud PBX solution that acts the solid foundation to achieving your desired call flow.  Customize your call flow further by adding other modules or integration to Zentrex to take your communications to the next level.

Supports all major devices

Zentrex softphone supports Desktop, Laptop, IP Phones, Mobile SIM Card with simultaneous calling

Caller ID Control

Set your desired caller ID for each user accordingly 

Missed Call Notifications

Set missed call flows, set email notifications and more!

Cost effective and efficient

Work from anywhere , anytime with free inter-organization calling

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Advanced Call settings

Set work hours, user status, call transfer, call delegate, conferencing/hold/retrieve and more!

Phone Book

Manage internal users and external contacts

Customize dial plans

Set customizable outbound rules and country whitelist

Advanced user management and access

Easily manage user access and settings via all in one cloud portal

Supports external Integrations 

Integrate to our other modules easily or an external module of your choice (E.g. CRM, call recording, call center and more!)

Suitable for all Industries

No matter which sector, professional individual or business team units can benefit from Hoiio's Cloud PBX. Want to find out more? Schedule a free consultation with us today.

Cloud PBX Zentrex Add-ons

Take your call flow to the next level

Call Recording

Enterprise grade call recording for every device to provide insights on quality, dispute management and to ensure security compliance.

Call Center

Skill-based or availability call routing, agent monitoring, queue management, advanced analytics, dashboards and more!

Image by Austin Distel

Auto Attendant

Auto-attendant to manage inbound call call traffic, act a first layer greeting and manage call routing throughout the entire organisation.

Marketing Tools

Send SMS marketing campaigns with personalized messages for post call support, carry outbound DNC checking, set up cloud fax and more!

Zentrex Benefits

Work form anywhere, at anytime

No need for costly on premise PBX

Cost efficient and flexible

Cost efficient and flexible

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You're in good hands with our
Award Winning
Cloud PBX platform.


SLA Reliability 


Enterprise clients in Singapore

Video Call
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Call per day through our system


phone lines deployed locally

We can work with every industry.

Check out some of our clients below.

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