3CX is a software-based private branch exchange (PBX) system for unified communications that works with popular IP phones, SIP trunks, and Gateways....
Starting at $0 for the standard edition
Best Yeastar P-Series Alternatives ranked by AI · updated Aug 2026
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Yeastar P-Series is a business phone system available as appliances, software, and cloud services for small and mid-sized organizations. It combines SIP telephony with video meetings, CRM integrations, mobile access, call queues, and contact-center tools.
Top 6 Yeastar P-Series alternatives
Asterisk is an open-source framework for building communications applications. It turns an ordinary computer into a communications server.
FreePBX is an open-source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open-source communication server.
VitalPBX is a complete open-source communication solution based on Asterisk. It offers a range of features like PBX, voicemail, conferencing, and more.
Issabel is an open-source Unified Communications software that integrates PBX, email, instant messaging, faxing, and more.
PBXware is a software-based IP PBX platform for businesses, service providers, and telecommunications resellers. It provides SIP calling, extensions, call routing, conferencing,...
Pros
- Broader carrier and multi-tenant capabilities than many small-business PBX products
- Includes business telephony, contact-center, and collaboration features in one platform
- Supports hosted, private-cloud, and on-premises deployments
Cons
- Pricing and packaging are less transparent than FreePBX or Asterisk
- More complex to deploy and administer than simpler cloud phone systems
- May require a Bicom Systems partner for implementation and support
Quote-based
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