Yeastar P550 P-Series IP PBX

The Yeastar P550 delivers enterprise-grade unified communications for mid-sized organizations requiring up to 500 users and 100 concurrent calls. This on-premises IP PBX system combines traditional phone system reliability with modern VoIP capabilities, eliminating recurring cloud subscription costs. Organizations seeking complete control over their communication infrastructure will find the P550 ideal for multi-site deployments, call centers, and businesses with demanding telephony requirements.

Technical Specifications

System Capacity

• Users: Up to 500 extensions
• Concurrent Calls: 100 simultaneous connections
• Voicemail Storage: 200 hours recording capacity
• Call Recording: Unlimited duration with external storage support

Connectivity & Interfaces

• Network: Dual Gigabit Ethernet ports (LAN1, LAN2)
• Telephony Ports: Expandable via modules (analog, digital, GSM options)
• Protocol Support: SIP, IAX2, ISDN PRI/BRI, analog FXS/FXO
• Module Slots: 2 expansion slots for interface cards

Performance & Processing

• Processor: Quad-core 1.6GHz
• RAM: 4GB DDR4
• Storage: 32GB SSD (expandable via USB)
• Transcoding: Hardware-based codec conversion (G.711, G.722, G.729, Opus)

Integration & Compatibility

• CRM Integration: Salesforce, Zoho, HubSpot, custom API support
• IP Phone Compatibility: Auto-provisioning for Yeastar, Fanvil, Htek, Cisco, Polycom
• Softphone Support: Windows, macOS, iOS, Android applications
• API Access: RESTful API for custom integrations

Physical Specifications

• Dimensions: 440mm × 350mm × 44mm (1U rackmount)
• Weight: 3.2kg
• Power: 100-240V AC, 50/60Hz (redundant PSU optional)
• Operating Temperature: 0°C to 50°C
• Certifications: CE, FCC, RoHS compliant

Use Cases & Applications

Multi-Location Enterprises: The P550 connects branch offices through SIP trunking and VPN, creating a unified dial plan across locations. Employees transfer calls between sites using simple extensions rather than external numbers.

Growing Call Centers: Organizations handling customer service operations benefit from integrated queue management and supervisor monitoring. Real-time dashboards display agent status without requiring separate software installations.

Hybrid Work Environments: Companies supporting remote teams utilize mobile apps and softphones that mirror desk phone functionality. Hot desking features allow flexible workspace arrangements where employees access their extensions from any physical phone.

Regulated Industries: Businesses requiring call recording for compliance purposes leverage unlimited recording capacity with secure storage options. Healthcare providers and financial services firms maintain audit trails for regulatory requirements.

Legacy System Modernization: Organizations with existing analog phones or digital ISDN lines transition gradually by connecting legacy equipment through expansion modules. This approach spreads migration costs while maintaining service continuity during the transition period.

Deployment Considerations

The Yeastar P550 requires static IP addressing and proper network segmentation for optimal voice quality. Organizations should allocate dedicated VLANs for voice traffic to prevent quality degradation during high network usage periods.

Power redundancy through UPS systems ensures communication availability during electrical outages. The optional redundant power supply adds further resilience for mission-critical deployments.

Internet bandwidth requirements scale with concurrent call volume—approximately 100kbps per simultaneous call when using G.729 codec compression. Organizations should verify sufficient upload bandwidth at each location before deployment.

Initial configuration involves network parameters, trunk setup, and extension provisioning through the web-based administration interface. Most implementations complete within 4-6 hours for straightforward deployments, though complex integrations may require additional configuration time.