All-in-One Platform
PBX, Linkus UC client, Contact Center, Voice AI, and omnichannel messaging in a single firmware. No separate products to license, integrate, or maintain. WebSocket audio streaming (wss://) for custom AI and analytics integration.
Overview
Why Yeastar P-Series Cloud PBX
More than a phone system — Yeastar P-Series combines enterprise PBX, Linkus UC client, Contact Center, Voice AI (call transcription, neural TTS, call flow designer), and omnichannel messaging in one firmware. SIPPER deploys it on our Pure VoIP Network in Thailand — dedicated voice infrastructure with direct NT and True carrier interconnection. Full stack control from PBX to carrier.
Pure VoIP Network in Thailand
Cloud PBX runs on SIPPER's Pure VoIP Network — dedicated voice-only infrastructure in Thailand, not a third-party cloud. Call recordings, CDR, and voice data stay in-country for PDPA compliance. SIP Trunk bundled for end-to-end voice quality with no mixed traffic.
YSCE Certified Partner — All 9 Tracks
SIPPER holds all 9 Yeastar certification tracks including YSCE (Star Certified Engineer) — the highest certification level. We design, deploy, and support P-Series from 20-user offices to 10,000-user enterprises.
Key Features
Enterprise features built into every edition
Linkus UC Client
Softphone for Windows, macOS, iOS, and Android — plus web client and Chrome extension. Team chat, presence, file sharing, video calls, and call flip between devices mid-call. Operator Panel for drag-and-drop call dispatch. Linkus Client SDK (Web/Mobile/Desktop) for embedding calling into your own apps.
Voice AI & Call Flow Designer
Call transcription, auto-summary, voicemail-to-text, Neural TTS (AWS Polly, 100+ voices in 40+ languages), and visual Call Flow Designer for no-code IVR automation. WebSocket audio streaming (wss://) for custom AI/analytics. Built into firmware — no external AI subscription.
Contact Center
Built-in queue management, wallboard, SLA tracking, and CRM screen pop. Activate with a license key — no separate software. Outbound dialer available as add-on. Supervisor features include barge, whisper, monitor, and real-time queue metrics.
Omnichannel Messaging
Unified inbox for WhatsApp, SMS (via Twilio/Telnyx/Bandwidth), Facebook Messenger, and website Live Chat. Auto-route messages to agents, transfer chats, and elevate to voice call with one click. Enterprise plan and above.
Remote & Multi-site
Remote SIP service for secure off-site phone registration — works behind NAT without VPN. Site-to-site peering and centralized management across branches. Custom PBX domain name (FQDN) with Let's Encrypt auto-renewal.
CRM & API Integration
Built-in connectors for Salesforce, HubSpot, Zoho, Bitrix24, Odoo, Dynamics 365, Zendesk, and more. REST API with OAuth2, WebSocket events for real-time call notifications, AMI for PBX control, and Linkus Client SDK for embedding click-to-call into custom apps.
Subscription Plans
Three plans — choose what your business needs
Every P-Series starts with core PBX and UC features. Enterprise adds CRM integration, omnichannel messaging, and AI. Ultimate adds video conferencing, Active Directory, and disaster recovery.
Standard Plan
Core PBX telephony: call routing, IVR, ring groups, queues, CDR, voicemail, Linkus UC clients, team chat, operator panel, auto-provisioning, and security features (2FA, SRTP/TLS). Appliance edition only.
Enterprise Plan
Everything in Standard plus: CRM integration (Salesforce, HubSpot, Zoho, Dynamics 365), omnichannel messaging (WhatsApp, SMS, Facebook), Voice AI (TTS, call transcription), remote access service, and remote archiving. Default for Cloud Edition.
Ultimate Plan
Everything in Enterprise plus: video conferencing with screen sharing, Active Directory / Microsoft Entra ID integration with SSO and Teams presence sync, and disaster recovery with hot standby and automatic failover.
Who is this for
Built for organizations of every size
From startups replacing their first phone system to enterprises standardizing communication across branches — Yeastar P-Series scales from 20 to 10,000 users.
Replacing Legacy PBX
Organizations with aging Panasonic, NEC, or Avaya systems that need modern features without the complexity of enterprise UC platforms.
Growing Businesses
Companies expanding to new branches or adding remote workers. Start with what you need and scale by adding licenses — no forklift upgrades.
IT Teams Seeking Simplicity
Manage PBX, UC, Contact Center, and Voice AI from one admin interface. Fewer vendors, fewer tickets, and a system your IT team can actually manage.
Full Capabilities
All-inclusive PBX features
- Linkus UC Client (Desktop/Mobile/Web)
- Linkus Chrome Extension
- Linkus Client SDK (Web/Mobile/Desktop)
- Call Transcription & Summary
- Voicemail-to-Text
- Neural TTS (AWS Polly, 100+ voices)
- WebSocket Audio Streaming (wss://)
- Call Flow Designer (No-code)
- Contact Center Module
- Queue Panel & Wallboard
- Supervisor: Barge / Whisper / Monitor
- Outbound Call Center (Software add-on)
- Multi-level IVR
- Time & Skill-based Routing
- Call Recording & Archival
- Video Conferencing (Ultimate plan)
- Team Chat & Presence
- Omnichannel Messaging (WhatsApp/SMS/FB)
- CRM Integration (6+ platforms)
- Helpdesk Integration (Zendesk/Zoho Desk)
- Microsoft Teams Integration
- Active Directory / Entra ID + SSO
- Auto-provisioning (450+ phone models)
- Remote SIP Service (FQDN)
- Multi-site Peering
- Hot Standby & Disaster Recovery
- Hotel PMS (OPERA/Fidelio/FIAS)
- REST API (OAuth2) & AMI
- Remote Archiving (S3/SFTP/SharePoint)
- 2FA & IP Whitelist Security
- SRTP/TLS Encryption
- Bundled SIP Trunk (Cloud Edition)
Deployment Options
Choose the deployment that fits your business
All three editions share the same core platform and admin interface. Feature availability depends on your subscription plan (Standard, Enterprise, or Ultimate). Cloud Edition starts on Enterprise by default.
Cloud Edition — Hosted by SIPPER
Powered by SIPPER's Pure VoIP Network in Thailand — dedicated voice infrastructure with direct NT and True carrier interconnection. Call recordings and CDR stay in-country for PDPA compliance. Enterprise plan by default (upgradeable to Ultimate). No hardware to maintain, automatic firmware updates, and predictable monthly costs. SIP Trunk bundled. Scales from 5 to 500 extensions per instance.
Software Edition — Self-hosted VM
Install on your own server or VM (VMware, Hyper-V, KVM). Scales up to 10,000 users and 1,000 concurrent calls. Enterprise plan included free — upgrade to Ultimate for video conferencing, AD/Entra ID integration, and disaster recovery. Full feature parity with Cloud including Call Transcription, WebSocket audio streaming, and Call Flow Designer.
Appliance — On-premise Hardware
Dedicated Yeastar hardware installed on your site: P550 (50 users), P560 (200 users), P570 (500 users). Starts on Standard plan — upgrade to Enterprise for CRM, omnichannel, and AI features. One-time capex for hardware plus annual subscription. Modular expansion with DSP modules and telephony boards (FXS, FXO, BRI/PRI, 3G/4G).
FAQ
Common questions about Yeastar Cloud PBX
How many users does Yeastar P-Series support?
Cloud Edition supports 5 to 500 extensions per instance. Software Edition scales up to 10,000 users and 1,000 concurrent calls. Appliance depends on the hardware model: P550 supports 50 users, P560 up to 200, and P570 up to 500 (expandable with DSP modules).
What is the difference between Standard, Enterprise, and Ultimate plans?
Standard includes core PBX, Linkus UC, team chat, and contact center basics. Enterprise adds CRM integration, omnichannel messaging (WhatsApp/SMS/Facebook), Voice AI, and remote access. Ultimate adds video conferencing, Active Directory/Entra ID with SSO, and disaster recovery with hot standby.
Can I keep my existing phone numbers?
Yes. SIPPER provides SIP Trunk service that supports number porting. Your existing DID numbers can be migrated to the new system with minimal downtime.
Does the Cloud Edition include SIP Trunk?
SIPPER bundles Cloud PBX with SIP Trunk on our Pure VoIP Network. This means your voice traffic runs on a dedicated network with no mixed data — resulting in consistent call quality and reliability.
Can I use my existing desk phones?
Yeastar P-Series auto-provisions 450+ phone models including Yealink, Fanvil, Grandstream, Poly, and Snom. Most modern SIP phones work out of the box with plug-and-play setup (PnP/DHCP/RPS). SIPPER can assess your current hardware compatibility.
Is Microsoft Teams integration available?
Yes. Linkus for Teams lets users make and receive PBX calls within Teams. Ultimate plan adds Microsoft Entra ID integration with SSO and bidirectional Teams presence sync. For full PSTN connectivity through Teams, SIPPER also offers Ribbon Direct Routing.
What omnichannel messaging channels are supported?
Enterprise and Ultimate plans include WhatsApp, SMS (via Twilio, Telnyx, Bandwidth), Facebook Messenger, and website Live Chat. All channels share a unified inbox in Linkus with auto-routing, chat transfer, and one-click escalation to voice call.
What kind of support does SIPPER provide?
SIPPER provides end-to-end support including system design, deployment, user training, and ongoing technical assistance. As a YSCE-certified partner (all 9 Yeastar certification tracks) based in Thailand, we offer both remote and on-site support.
What is WebSocket audio streaming?
Yeastar P-Series can stream live call audio via WebSocket (wss://) to external services for real-time AI analysis, custom speech-to-text, sentiment detection, or compliance monitoring. This lets you build custom voice AI solutions on top of the PBX without modifying the call flow. Available on Enterprise and Ultimate plans.
How long does migration from a legacy PBX take?
Typical migration takes 2-4 weeks for a single-site deployment: 1 week for system design and provisioning, 1 week for phone auto-provisioning and user setup, and 1-2 weeks for number porting and parallel run. Multi-site deployments are phased branch by branch. SIPPER handles the entire process from site survey to go-live.
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