- Flexibility and investment protection
- Enhanced reliability
- One ISDN BRI port with U interface (built-in NT1)
- Utilizes an RJ-49C connector
Cisco integrated services routers offer a wide variety of WAN connectivity modules to accommodate the range of application needs in customer networks. The Cisco 1-Port BRI U High-Speed WAN Interface Card (HWIC, Figure 1) offers BRI-U-based WAN connectivity for modular routers deployed in small to medium-sized businesses (SMBs) and enterprise branch offices.