Yealink SIP-T28P

Product Description

Enterprise HD IP Phone

Yealink SIP-T28P

Summary

The Yealink SIP T28P (6 Line, PoE – HD Phone) is a 6 Line Business Phone designed for the business user who needs rich telephony features, friendly UI and superb voice quality.

Yealink SIP-T28P Technical Specifications

Phone Features

• 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
• Tone 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
• 320×160 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

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