Manufacturer Cisco Manufacturer Part # C881-V-K9 Cost Central Item # 11546777 Product Description Cisco 881V – Router – 4-port switch – VoIP gateway – desktop Device Type Router – 4-port switch (integrated) Enclosure Type Desktop Data Link Protocol Ethernet, Fast Ethernet Capacity IPSec VPN tunnels : 20 Network / Transport Protocol L2TP, IPSec Routing Protocol RIP-1, RIP-2, HSRP, VRRP, GRE Remote Management Protocol Telnet, SNMP 3, HTTP, HTTPS, SSH VoIP Functionality VoIP gateway VoIP Protocols MGCP, SCCP, SIP, H.323 v3, H.323 v4, H.323 v1, H.323 v2 Telephony Interfaces 1 line (FXO), 4 phone (FXS), 2 phone (ISDN BRI) Features NAT support, VLAN support, auto-uplink (auto MDI/MDI-X), Stateful Packet Inspection (SPI), MAC address filtering, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Fair Queuing (WFQ), Spanning Tree Protocol (STP) support, Access Control List (ACL) support, Quality of Service (QoS), DHCP server, DNS proxy Compliant Standards IEEE 802.1D, IEEE 802.1Q Power AC 120/230 V ( 50/60 Hz ) Approximate Dimensions (WxDxH) 12.8 in x 9.8 in x 1.7 in Approximate Weight 5.5 lbs