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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
The sealing rings have ventilation channels and are covered with soft
PoE(IEEE 802
Robust construction for exceptional reliability
58v DC Nom
Compatible with version 5 and above
Yealink SIP-T28P Enterprise IP Telephone Category_Best4Systems/Headsets/Wired Headsets/Free Wipe - Headsets The sealing rings have ventilationNetwork Features SIP 2. 0(RFC3261) protocol, NAT traversal: STUN mode IP assignment: DHCP Static IP PPPoE Auto provision: firmware, configuration, ringtone, phonebook etc. QoS: IEEE 802. 1p q tagging (VLAN), Layer 3 ToS In band DTMF, Out band DTMF and SIP INFO DTMF Proxy mode and peer to peer SIP link mode Standard encryption and authentication(MD5 and MD5 sess) Phone Features Support up to 6 SIP accounts, Hotline, Emergency call Call hold, Call
US$ 24.99
US$ 29.99
US$ 195.00
