Yealink SIP-T28P Executive IP Phone

6 VoIP accounts, hotline, emergency call Call waiting, call transfer, call forward Hold, mute, flash, auto-answer, redial 3-way conference, DND, speed dial XML Phonebook search/ import/ export Black list, call history ( 100 entries) Volume adjustment, ring tone selection one scheme, System log Multi-language ( more than 20) Supports up to 6 expansion modules IP PBX System Integration Dial plan, dial-now SMS, Voicemail, MWI BLF/ BLA, intercom, paging Call park, call pickup Distinctive ringtone Codecs and Voice Features Wideband codec: G.722 Narrowband codec: G.711, G.723.1, G.726, G.729AB VAD, CNG, AEC, PLC, AJB, AGC Full-duplex speakerphone with AEC Network Features SIP v1 ( RFC2543) , v2 ( RFC3261) NAT Traversal: STUN mode DTMF: In-Band, RFC2833, SIP Info Proxy mode and peer-to-peer SIP link mode IP Assignment: Static/ DHCP/ PPPoE Bridge/ router mode TFTP/ DHCP/ PPPoE client Telnet/ HTTP/ HTTPS server DNS client NAT/ DHCP server Management FTP/ TFTP/ HTTP/ PnP auto-provision Configuration: browser/ phone/ auto-provision Direct IP call without SIP proxy Dial number via SIP server Dial URL via SIP server Security HTTPS ( server/ client) SRTP ( RFC3711) Transport Layer Security ( TLS) VLAN ( 802.1 pq) , QoS Digest authentication using MD5/ MD5-sess Secure configuration file via AES encryption Phone lock for personal privacy protection Admin/ user configuration mode Physical Features TI TITAN chipset 320x160 graphic LCD with 4-level grayscales 48 keys including 16 programmable keys 1xRJ9 ( 4P4C) handset port 1xRJ9 ( 4P4C) headset port 2xRJ45 10/ 100M Ethernet ports 1XRJ12 ( 6P6C) expansion module port Power adapter: AC 100~ 240V input and DC 5V/ 1.2A output Power over Ethernet ( IEEE 802.3af) Power consumption: 1.6-2.6W Net weight: 1.05KG Dimension: 273x204x42MM Operating humidity: 10~ 95% Storage temperature: up to 60° C. konsultasi Gratis : Hubungi 021-55780000