Huawei U291CIU01 eSpace U2990 Circuit Interface Unit

• Enterprise PSTN-to-IP telephony migration
• Branch office hybrid PBX integration
• Government legacy communication system modernization
• Call center PSTN trunk connectivity
• Financial institution secure voice infrastructure integration
• Campus-wide mixed telephony deployment
• Telecom carrier interconnection systems
• Disaster recovery voice communication continuity setups
• Enterprise headquarters hybrid voice routing
• Healthcare communication system integration

• Supports 2 E1 digital trunk interfaces for PSTN connectivity
• Includes 1 FXO port for analog line integration
• Includes 1 FXS port for analog device connectivity
• Designed for Huawei eSpace U2990 UC systems
• Enables hybrid PSTN and IP voice communication
• Supports legacy telephony infrastructure integration
• Ensures seamless enterprise voice interoperability
• Reduces dependency on full IP migration
• Enhances communication system modernization flexibility
• Carrier-grade reliability for enterprise voice traffic
• Supports phased telephony transformation strategies
• Optimized for enterprise hybrid communication environments
• Maintains stable connectivity across mixed networks
• Simplifies voice infrastructure consolidation
• Designed for scalable unified communication deployments

• Brand: Huawei
• Product Type: Circuit Interface Unit
• Model: Huawei U291CIU01
• System Compatibility: Huawei eSpace U2990
• Digital Interfaces: 2 × E1 ports
• Analog Interfaces: 1 × FXO, 1 × FXS
• Function: PSTN and analog voice integration
• Deployment: Enterprise unified communications systems
• Architecture Role: Telephony interface module

WHY CHOOSE THIS PRODUCT?

• Huawei U291CIU01 is ideal for organizations that still rely on hybrid telephony environments and require stable integration between PSTN and IP-based communication systems. It enables businesses to modernize gradually without disrupting critical voice services.
• Unlike IP-only gateways, it provides native support for E1 trunk lines and analog interfaces, making it highly flexible in legacy-heavy environments. This ensures that existing telephony investments remain usable while transitioning toward unified communications platforms.
• For enterprises managing large-scale communication infrastructure, it offers a cost-effective and low-risk migration path. It supports operational continuity, reduces upgrade complexity, and enables long-term scalability in evolving hybrid communication ecosystems.