Design to meet your business needs

REDtone SIPhony provides businesses with high quality voice services at a fraction of the cost of traditional landlines. It uses breakthrough Voice over Internet Protocol (VoIP) technology over a state-of-the-art network. Easy to implement and use, REDtone SIPhony is ideal for SMEs, SMIs and enterprises seeking to take control of their voice costs.

Apps available



Available in mobile app form, the “Extension” feature provides comprehensive VoIP features such as making and receiving calls, transferring calls, voicemail notification, and call conferencing for up to 8 parties. BizPhone allows businesses to assign extension numbers (which are connected to the main business number) to designated workstations/employees.

Call Recording

Enables you to record and store all incoming and outgoing calls. You can playback or download the file anytime. An essential feature for training and compliance purposes.

DID Numbers

We provide nationwide numbers so you can assign number to your employees without requiring multiple physical phone lines.

Direct Line

(Cal Forwarding)

A call forwarding app that lets you forward calls to 6 mobile, DID or overseas numbers.


A reliable SIP trunking solution that allows you to receive and make calls from any device, i.e. IP phone, laptop or softphone. Enjoy carrier-grade call quality at much lower rates.

Virtual Line (IVR)

Customise your own automated voice answering machine. Offers a multi-layered IVR menu with ring queue and ring group numbers. Enhances call management efficiency and reduces manpower cost.

You May Also Like

Metro E

Metro E

Designed for demanding customers with reliable high bandwidth needs, REDtone Metro E allows you to enjoy high-speed, high-volume data transfers.




Find out more…



Take advantage of the transformative benefits of cloud, with the potential to add more complexity as your business infrastructure expands. REDtone flexiCloud acts as a catalyst for innovation and digital transformation.


Find out more…

Clean Pipe

Clean Pipe

Prevent DDoS attack to your network and safeguard your business. Highly recommended for organisations that cannot afford any downtime of assets running their own network.



Find out more…