30 Programmable Buttons: Configure each button for speed dial, BLF monitoring, call transfer, or intercom functions, eliminating time spent searching through directories or dialing numbers manually
High-Resolution LCD Display: Shows real-time presence status with caller information on backlit screens, enabling visual confirmation of colleague availability before transferring calls
Daisy-Chain Capability: Connect up to six D30 modules to a single IP phone, providing access to 180 monitored extensions for large office environments or call center operations
Dual-Color LED Indicators: Red and green status lights instantly communicate extension status (idle, busy, ringing), allowing quick assessment of team availability without screen navigation
Hot-Pluggable Design: Install or remove modules without phone restart, enabling configuration changes and troubleshooting without disrupting active communication workflows
Eight Extension Ports: Adds capacity for eight simultaneous phone connections, allowing gradual system growth aligned with hiring plans and budget constraints
Hot-Swappable Installation: Install the expansion card without powering down the PBX system, maintaining continuous phone service during capacity upgrades or maintenance procedures
Universal Protocol Support: Handles SIP, IAX2, and analog extensions through unified interface, providing flexibility for mixed equipment environments and legacy device integration
Independent Port Configuration: Configure each port individually for different extension types or security profiles, enabling customized deployment strategies across departments
Seamless System Integration: Operates as native PBX capacity with automatic detection and configuration, requiring minimal technical expertise for deployment and management
Dual SIM Card Support: Accommodates two SIM cards with automatic failover, ensuring continuous mobile connectivity even when one carrier experiences network issues
Cost Reduction: Routes calls through mobile networks with favorable rates or unlimited plans, significantly lowering telecommunication expenses compared to traditional PSTN services
Hot-Swappable Installation: Install or remove the module without system shutdown, allowing maintenance and upgrades without interrupting business communications
Caller ID Recognition: Displays incoming mobile caller information on connected IP phones, enabling proper call routing and improved receptionist workflow efficiency
SMS Functionality: Send and receive text messages through the PBX system, allowing automated notifications, alerts, and two-way SMS communication with customers
Dual FXO Ports: Connects two analog telephone lines to your IP-PBX, enabling cost-effective use of existing PSTN services alongside VoIP capabilities
Hot-Swappable Design: Install or replace the module without powering down your phone system, minimizing service interruption during maintenance or upgrades
Universal Compatibility: Works seamlessly with Yeastar S-Series VoIP PBX systems, allowing flexible expansion as communication needs evolve
Caller ID Support: Captures and displays incoming caller information from analog lines, ensuring proper call routing and enhanced receptionist efficiency
Echo Cancellation Technology: Eliminates voice echo on analog connections, delivering clear audio quality comparable to digital VoIP calls