Cisco 8811 IP Phone - Cable - Wall Mountable - VoIP - Caller ID - SpeakerphoneUser Connect License, Unified Communications Manager - 2 x Network (RJ-45) - PoE Ports - Color - SIP, TLS, LLDP-PoE, LLDP, LLDP-MED, SDP, RTP, SRTP, DHCP, RTCP, UDP, ... Protocol(s):