Yeastar vs 3CX Cloud PBX: Which Platform Fits Thai Businesses in 2026?

The two platforms Thai businesses compare most

When Thai organizations evaluate a business phone system in 2026, two platforms come up in almost every conversation: Yeastar P-Series and 3CX V20. Both are mature, widely deployed systems with strong partner ecosystems in Thailand. Both support on-premise and cloud deployment. Both include mobile apps, SIP trunk connectivity, and contact center capabilities. And yet the two platforms take meaningfully different approaches to licensing, architecture, and long-term cost.

Understanding those differences before procurement prevents surprises. This article compares both platforms across the dimensions that matter most for Thai buyers.

Licensing model: per-extension vs per-concurrent-channel

The most structurally important difference between Yeastar and 3CX is how they count usage.

**Yeastar P-Series** licenses by number of extensions. You pay for the number of users registered to the system, regardless of how many calls are active at any moment. Plans scale from Starter (basic calling) through Business and Enterprise tiers, adding features like Contact Center, CRM integration, and Voice AI at each step. The Yeastar P-Series Business plan starts at approximately ฿2,500 to ฿3,500 per month for a small deployment through a SIPPER-managed hosted instance, depending on extension count and feature tier.

**3CX V20** licenses by simultaneous call channels. You pay for the number of calls that can be active at the same time, not the total number of registered users. A 4-channel license supports 4 simultaneous calls but can have an unlimited number of registered extensions. This model often results in lower headline costs for organizations with many registered extensions but relatively low concurrent call volume, such as offices where most staff make one or two calls per day during normal operations.

3CX pricing in Thailand through SIPPER runs approximately ฿1,800 to ฿2,500 per month for an 8-channel Pro instance, making it competitive for organizations with moderate call volume and larger user counts.

Neither model is universally better. The right choice depends on your call patterns: peak simultaneous calls versus total registered users.

Features: Linkus vs 3CX App

Both platforms include mobile softphone applications that allow users to make and receive calls on smartphones and desktops.

**Yeastar Linkus** is the Yeastar UC client. It handles voice calls, video calls, presence, instant messaging, and voicemail from a single interface. Linkus for Web, Desktop, and Mobile are included with P-Series Business and above. The interface is clean and the user experience is consistent across platforms.

**3CX App** (for Android, iOS, and Windows) provides comparable calling and messaging capabilities. 3CX's video conferencing is built directly into the platform and supports up to 250 participants on the higher-tier plans, which is a meaningful differentiator for organizations that need internal video meetings without a separate tool.

For organizations with a Contact Center requirement, Yeastar P-Series Enterprise includes a built-in Contact Center module with queue management, agent wallboard, and basic CRM routing. 3CX's Contact Center features are available from the Pro tier upward and include call queues, callback scheduling, and chat integration.

Both platforms integrate with Microsoft Teams via direct routing, and both support CRM integrations with Salesforce, Zoho, and HubSpot.

Voice AI

Yeastar has invested significantly in AI capabilities within the P-Series platform. Yeastar AI features, available in the Enterprise tier, include intelligent call routing, real-time transcription, and automated call summarization. For organizations that want AI-assisted call handling without building custom integrations, Yeastar's native AI module is the faster path.

3CX does not have a native AI call assistant in V20. AI functionality in a 3CX deployment typically requires integration with a third-party AI platform, which adds deployment complexity.

Deployment flexibility

Both platforms support three deployment models: on-premise hardware, self-hosted cloud (VPS or private server), and hosted cloud managed by a partner.

Yeastar P-Series is also available as a physical appliance (the P-Series S-Series hardware). For organizations that want an all-in-one physical unit rather than a software deployment, Yeastar offers that option at the hardware level. 3CX is software-only.

For self-hosted deployments, 3CX runs well on a minimal VPS (2 vCPU, 2GB RAM for a small system) and has excellent documentation for self-managed deployments. Yeastar's self-hosted option requires meeting Yeastar's minimum specifications but is equally well documented.

Certification and expertise in Thailand

SIPPER holds certifications from both vendors, including the Yeastar Certified Systems Engineer (YSCE), which is the highest certification tier in the Yeastar program, and 3CX Advanced Certified Engineer V20 awarded to SIPPER's lead engineer Nawawit Sirisomboon.

This dual certification is operationally significant. A reseller or partner who holds only one vendor's certification will naturally favor that platform regardless of customer fit. SIPPER's ability to deploy and support both platforms from a position of equivalent technical depth means the recommendation you receive is based on your requirements rather than the partner's vendor relationship.

When to choose Yeastar P-Series

Yeastar is the stronger choice for organizations that prioritize native feature depth, a single-vendor AI roadmap, and hardware appliance options. The per-extension licensing model is more predictable for organizations with variable call patterns. Yeastar is particularly well suited for contact center deployments, organizations requiring Voice AI without custom development, and businesses that prefer a physical appliance for network security or compliance reasons.

When to choose 3CX V20

3CX is the stronger choice for organizations with many registered users but moderate concurrent call volume, where the per-channel model produces meaningfully lower monthly costs. 3CX's built-in video conferencing reduces dependence on a separate video platform. 3CX is also an excellent fit for organizations that want deep SIP trunk portability and the flexibility to self-host their phone system on their own infrastructure.

How SIPPER helps

SIPPER designs, deploys, and supports both Yeastar P-Series and 3CX V20 for businesses across Thailand. We assess your call volume patterns, user count, feature requirements, and existing infrastructure to recommend the platform that fits your operational model, not a default preference. Both platforms are available as SIPPER-hosted cloud instances with local support, or as on-premise deployments with remote management.

Contact SIPPER for a direct comparison with current pricing and a deployment plan tailored to your team size and call requirements.