Description
The Yealink SIP-T28P Enterprise HD IP Phone features:
• TI TITAN chipset and TI voice engine
• 320×160 graphic LCD with 4-level grayscales
• 6 VoIP accounts, Broadsoft /Avaya/Asterisk validated
• HD Voice: HD Codec, HD Handset, HD Speaker
• 48 keys including 16 programmable keys
• BLF/BLA, SMS, Voicemail, Intercom
• Localized language, XML phonebook
• FTP/TFTP/HTTP, PnP Auto-provision
• SRTP/HTTPS/TLS, VLAN, QoS
• PoE, Headset, 2xRJ45, Expansion module
• Phone features:
— 6 VoIP accounts, hotline, emergency call
— 48 keys including 16 programmable keys
— 1 x RJ9 (4P4C) handset port
— 1 x RJ9 (4P4C) headset port
— 2 x RJ45 10/100M Ethernet ports
— 1 x RJ12 (6P6C) expansion module port
— Call waiting, call transfer, call forward
— Hold, mute, flash, auto-answer, redial
— 3-way conference, DND, speed dial
— XML Phonebook search/import/export
— Call history (100 entries)
— Volume adjustment, ring tone selection
— Tone scheme, System log
— Multi-language (more than 20)
— Supports up to 6 expansion modules
• IP PBX System Integration features:
— 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
— HTTP/HTTPS server
— DNS client
— NAT/DHCP server
• Management features:
— 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 features:
— 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
• Power Options:
— Power over Ethernet (IEEE 802.3af), class 2, or
— Power adapter: AC 100~240V input and DC 5V/1.2A output (sold separately)
• Stand with 2 adjustable angles
• Color: Black
• Condition: New
• One Year Warranty