Overview
The Yeastar B2 Module is a high‑capacity expansion card designed to enhance Yeastar IP PBX systems with dual BRI telephony connectivity. Featuring two ISDN BRI ports (each supporting 2 B channels), it enables up to 4 simultaneous voice channels for inbound and outbound calling via ISDN networks. The module supports loop‑start and other signaling modes required for BRI operation, along with caller ID, line supervision, and robust voice processing. Its modular design allows easy installation in PBX appliances with expansion slots, enabling seamless integration with call routing, IVR, voicemail, and advanced PBX features. This expansion is ideal for businesses wanting to leverage legacy BRI infrastructure while modernizing their communications via VoIP platforms.
Technical Features
- Brand: Yeastar
- Module Type: B2 Expansion Card
- Ports: 2 × BRI Interfaces
- Total Channels: 4 (2 per BRI port)
- Signaling Supported: ISDN BRI S/T Interface
- Caller ID Support: Yes
- Line Supervision: Yes
- Connector Type: RJ45 / ISDN BRI Standard Connector
- Compatibility: Yeastar PBX with Expansion Slot
- Operating Temperature: 0°C to 40°C