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Monster VoIP offers hosted VoIP and unified communications solutions, primarily serving small to mid-sized businesses and enterprises.
★ Category overview
VOIP Providers in Singapore
Last updated: 20 July 2026
Singapore VOIP buyers usually weigh more than seat pricing. The stronger providers can explain SIP trunk redundancy, number porting from incumbent carriers, cloud-PBX call quality on local circuits, and how their platform handles IMDA compliance, emergency dialling, and call recording for regulated industries.
What to look for
- Singapore-hosted SIP infrastructure with documented uptime and failover.
- Smooth number portability from your incumbent fixed-line and mobile carriers, with lead times confirmed up front.
- Cloud PBX or UCaaS with Teams / Zoom / CRM integrations your team already uses.
- Clear handling of IMDA licensing, call recording retention, and emergency services routing.
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Natterbox is an AI-powered contact center solution built natively for Salesforce, enabling businesses to manage voice,…
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net2phone is a cloud communications provider offering business VoIP services.
Nextiva is a unified communications and customer experience platform trusted by over 1 million users and 100,000 businesses.
NUACOM is a cloud VoIP phone system and call centre software provider serving over 25,000 users across small and medium businesses and enterprises.
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Ooma Office provides a cloud-based business phone system designed for small businesses, professional-services firms,…
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OpenPhone is a cloud business phone system that provides a shared business phone and inbox for teams.
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PBXware is a multi-protocol IP-PBX platform from Bicom Systems, delivering business phone, contact-centre, mobility,…
Phone.com is a cloud-based VoIP business phone service designed for small and mid-sized businesses.
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Retell AI is an AI voice agent platform that enables businesses to build and deploy conversational AI agents for inbound and outbound phone calls.
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Ringostat is an AI-powered business phone and marketing performance platform serving sales, support, and marketing teams across 33 countries.
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Ringover offers cloud-based communication solutions for businesses, integrating calling, messaging, and collaboration tools.
Softphone.Pro is a Windows-based SIP softphone application aimed at call-centre agents, sales teams, and individual…
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Squaretalk provides contact center software for US and Canada businesses, offering unlimited calling within these regions.
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Streams.AI, a brand of PanTerra Networks, provides an AI-powered Unified Communications as a Service (UCaaS) and…
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Talkroute is a virtual phone system provider serving over 100,000 businesses primarily in the United States and Canada.
Textr Team is a cloud-based business texting and phone system from Textr, providing business phone numbers, two-way SMS…
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Toky is a cloud-based VoIP phone system designed for sales and customer support teams operating across more than 60 countries.
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Ultatel is an AI-powered cloud communications provider serving businesses in the United States and Canada.
VirtualPBX is a cloud business phone platform serving small and medium-sized businesses and remote teams.
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Voice Carrier Connect provides business VoIP and SIP-trunking services, including hosted PBX, SIP trunks, virtual numbers, and unified communications.
VoIP.ms is a cloud PBX and SIP trunk VoIP service provider serving over 100,000 customers worldwide on a pay-as-you-go…
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VoIPstudio provides a cloud-based business phone system and scalable call center services.