This article ranks the ten best VoIP service providers for Singaporean offices, focusing on local reliability, feature sets, and business-grade communication tools.
Top 1: RingCentral Cloud Phone
RingCentral offers a unified communications platform with voice, video, and messaging. For Singaporean offices, its local data centre ensures low latency and compliance with PDPA regulations. Plans start at SGD 30 per user monthly, including unlimited local calling.
Top 2: Zoom Phone System
Zoom Phone integrates seamlessly with Zoom Meetings, making it ideal for hybrid teams. It supports Singapore local numbers and provides robust call routing features. Pricing begins at SGD 18 per user per month with no long-term contracts.
Top 3: Microsoft Teams Phone
Built into Microsoft 365, Teams Phone delivers enterprise-grade VoIP with direct routing options. Singapore offices benefit from native Teams integration and advanced analytics. The standalone plan costs around SGD 12 per user monthly plus calling charges.
Top 4: 8×8 Business Voice
8×8 provides unlimited voice calls to Singapore landlines and mobiles. Its cloud platform includes a built-in contact centre solution. Pricing is competitive at SGD 25 per user monthly for the X2 plan with global reach.
Top 5: Nextiva Office Phone
Nextiva offers reliable VoIP with strong customer support and auto-attendant features. Although based in the US, it provides Singapore local numbers via partnership. Plans start at SGD 20 per user monthly with free porting.
Top 6: Vonage Business Cloud
Vonage delivers flexible VoIP with more than 50 integrated business apps. Singapore offices can have virtual numbers and simultaneous ring. Pricing begins at SGD 23 per user per month with unlimited calling.
Top 7: Cisco Webex Calling
Cisco Webex Calling ensures enterprise security and integration with Webex devices. Its global network includes a PoP in Singapore for low latency. The basic plan costs approximately SGD 15 per user monthly.
Top 8: Avaya Cloud Office
Avaya Cloud Office combines AI-powered call analytics with standard VoIP features. It offers dedicated local support for Singapore businesses. Pricing starts at SGD 28 per user monthly for the core plan.
Top 9: StarHub Business VoIP
StarHub, a Singapore telecom giant, provides localised VoIP with fixed IP addresses and DID numbers. Its service bundles with fibre internet for added savings. Plans begin at SGD 19 per user monthly.
Top 10: Singtel Business Voice
Singtel’s VoIP solution leverages Singapore’s extensive network with guaranteed uptime. Features include call queue management and mobile app integration. Pricing starts at SGD 22 per user per month.
| Provider | Key Feature | Approx Monthly Price (SGD) | Best For |
|---|---|---|---|
| RingCentral | Unified communications | SGD 30 per user | Large teams needing all-in-one |
| Zoom Phone | Zoom meeting integration | SGD 18 per user | Hybrid and remote teams |
| Microsoft Teams Phone | Microsoft 365 sync | SGD 12 + calling | Enterprises using M365 |
| 8×8 | Built-in contact centre | SGD 25 per user | Customer support teams |
| Nextiva | Auto-attendant and support | SGD 20 per user | Small to mid-sized offices |
| Vonage Business Cloud | App integrations | SGD 23 per user | Tech-heavy workflows |
| Cisco Webex Calling | Enterprise security | SGD 15 per user | Security-focused firms |
| Avaya Cloud Office | AI analytics | SGD 28 per user | Data-driven businesses |
| StarHub Business VoIP | Local telecom bundled | SGD 19 per user | Cost-conscious Singapore firms |
| Singtel Business Voice | Guaranteed uptime | SGD 22 per user | Reliability seekers |
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