The 813 ISDN Ethernet Router connects small professional offices or tele-commuters over Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI) lines to corporate local area networks (LANs) and the Internet. It offers multi-protocol routing between LAN and WAN ports.
The Cisco 813 router supports data and voice applications. The data applications are implemented through the ISDN port. The voice applications are implemented with ISDN BRI and through the telephone ports.

Cisco Router 800 series CISCO813 Interfaces/Ports:
Total Number of Ports:8
Interfaces/Ports: 4 x RJ-45 Network  Ports
Interfaces/Ports:2 x RJ-11 Broadband Ports
Management Port:Yes

Cisco Router 800 series CISCO813 Media & Performance:

 Carrier Supported:ISDN

Cisco Router 800 series CISCO813 Network & Communication:

Network Technology:10/100Base-TX
Network Technology:ISDN BRI (S/T)
Network Technology:ISDN BRI (U)
Ethernet Technology:Ethernet

Security Features:Cisco Router 800 series CISCO813 Memory:

Standard Memory:8MB
Maximum Memory:16
Memory Technology:DRAM
Flash Memory:4MB

Security Features:Cisco Router 800 series CISCO813 Power Description:

Power Input Voltage;110 V AC
Power Input Voltage:220 V AC
Power Input Voltage Range:110 V AC to 220 V AC