STier Communications
3CX Phone System — Unified Communications for Business
A complete communications platform with voice, video, chat, SMS, WhatsApp, Facebook, and contact center tools — all in one system. Work from anywhere, on any device, with a flexible deployment model and no per‑user licensing.
All‑in‑One Communications
Replace multiple tools with a single platform for calling, meetings, messaging, and customer engagement.
Work From Anywhere
3CX enables remote, hybrid, and distributed teams to stay connected using mobile apps, browser calling, and desktop applications — without VPNs or complex setup.
- iOS & Android apps with calling, video, chat, and presence
- Browser‑based calling and meetings
- CarPlay & Android Auto support
- Full extension functionality from any device
3CX Apps & Features
Mobile Apps (Android & iOS)
- Use your office number anywhere
- Built‑in video conferencing
- Team chat and internal messaging
- WhatsApp integration
- Conference call management
- Encrypted communications
- CarPlay & Android Auto support
Web & Desktop Apps
- Call from your browser — no VPN required
- Omnichannel messaging: chat, WhatsApp, Facebook, SMS
- One‑click video meetings
- CRM integration
- Microsoft 365 sync
- Real‑time team presence
Live Chat
- Instant website chat
- Chat queues and routing
- Chat‑to‑call and chat‑to‑video
- Performance reporting
WhatsApp & Facebook
- Centralized messaging
- Team routing
- Conversation history
- Policy‑compliant messaging
SMS/MMS
- Business SMS/MMS
- Team routing
- Privacy protection
Video Conferencing
- Up to 250 participants
- Unlimited duration
- Browser‑based access
- Screen sharing, whiteboard, polls, reactions
- YouTube streaming
- Meeting recording
- Low‑bandwidth optimized
Contact Center
- Built‑in call queues and routing
- Omnichannel support
- Wallboards & dashboards
- Listen‑In, Whisper, Barge‑In
- CRM integrations
- Call recording & QA
- Hot desking & Call Flow Designer
Security & Backup
- Hardened server configuration
- SIP attack protection
- Global IP blocklist
- Encrypted traffic
- Automatic SSL management
- Failover support
AI Analytics
- Sentiment analysis
- AI call summaries
- Advanced dashboards
- Multiple transcription engines
Flexible Deployment
Deploy 3CX your way — on‑premise, in your cloud, or fully managed by STier.
- Self‑hosted (Linux, Windows, Hyper‑V, VMware, KVM)
- Private cloud (AWS, Azure, Google Cloud)
- On‑premise appliance
- STier‑managed hosting
Simple Licensing
3CX uses a simultaneous call licensing model — not per user. This keeps costs predictable and eliminates expensive add‑ons.
- Pay per simultaneous call
- No per‑user fees
- No feature add‑on charges
- Lower telecom costs with SIP flexibility