Yealink T28P IP Phone (SIP-T28P)

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Yealink T28P IP Phone (SIP-T28P)

Please note Yealink T28P phones are PoE (Powered-Over-Ethernet) and do not include a mains Power Supply. If mains power is required, this can be added via the drop down menu at the bottom of this page.

The Yealink T28P represents the next generation of VoIP phones. The Yealink T28P in an Executive IP Phone which designed for the business user who needs rich telephony features, friendly UI and super voice quality.

Yealink T28P Features

• 6 SIP Accounts
• 320x160 White Backlit LCD Display
• 4 Level Grayscales
• 16 Programmable Keys
• Logo Customisation on Screen
• Expansion Keypad Available
• Power over Ethernet
• 3 Way Conference Calls
• Speakerphone
• MP3 Ringtones and Voicemail.
• Call Hold, Waiting and Transfer.

Note: Please refer to the Yealink VoIP Phone Range Detailed Comparison Table for more information.

Technical Specifications

Phone Features

• 6 VoIP accounts, Hotline, Emergency call
• Call hold, Call waiting, Call forward, Call return
• Call transfer (blind/semi-attended/attended)
• Caller ID display, Redial, Mute, DND
• Auto-answer, 3-way conferencing
• Speed dial, SMS, Voicemail
• Message Waiting Indication (MWI) LED
• Tone scheme, Volume control
• Direct IP call without SIP proxy
• Ring tone selection/import/delete
• Phonebook (300 entries), Black list
• Call history: dialed/received/missed/forwarded
• Menu-driven user interface
• Localized language and input method
• Soft keys programmable
• Supports up to 6 expansion modules(EXP38 and EXP39)
• Supports Wireless Headset Adapter (EHS36)

Advanced Features

• XML phonebook search/import
• LDAP phonebook
• XML Browser, Hot-desking
• PUSH XML
• Action URL & Active URI

IP PBX System Integration

• Busy lamp field (BLF), BLF list
• Bridged line appearance (BLA)
• DND & Forward synchronization
• Intercom, Paging, Music on hold
• Call park, Call pickup
• Call recording, Call completion
• Group listening, Group pickup
• Anonymous call, Anonymous call rejection
• Network conference
• Distinctive ringtone
• Dial Plan, Dial-now

Codecs and Voice Features

• Wideband codec: G.722
• Narrowband codec: G.711µ/A, 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)
• IPV6
• DNS SRV (RFC3263)
• Redundant server support
• 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 for PC port
• TFTP/DHCP/PPPoE client
• Telnet/HTTP/HTTPS server
• DNS client, NAT/DHCP server
• Logout

Management

• Auto-provision via FTP/TFTP/HTTP/HTTPS
• Auto-provision with PnP
• SNMP V1/2 optional, TR069 optional
• Configuration: browser/phone/auto-provision
• Factory configuration customized
• Trace package and system log export

Security

• Open VPN, 802.1x, VLAN QoS (802.1pq), LLDP
• Transport Layer Security (TLS)
• HTTPS (server/client), SRTP (RFC3711)
• Digest authentication using MD5/MD5-sess
• Secure configuration file via AES encryption
• Phone lock for personal privacy protection
• Admin/VAR/User 3-level configuration mode

Connectivity

Physical Features

• TI TITAN chipset
• 320 x 160 graphic LCD with 4-level grayscales
• 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) EXT port
• Power adapter: AC 100~240V input and DC 5V/1.2A output (Optional)
• Power over Ethernet (IEEE 802.3af)
• Power consumption: 1.6-2.6W
• Net weight: 1.05KG
• Dimension: 273 x 204 x 42mm
• Operating humidity: 10~95%
• Storage temperature: up to 60°C

Yealink T28P Certifications

Note: Please refer to the Yealink VoIP Phone Range Detailed Comparison Table for more information.

Yealink IP Phones Brief Comparison Table

Phone		Lines	LCD Display	Soft Keys	XML Phonebook	Exp Module Support	PoE Support
Yealink SIP-T38G		6	480 x 272 pixels, Color	16
Yealink SIP-T32G		3	400 x 240 pixels, Color	3
Yealink SIP-T28P		6	320 x 160 pixels, B&W	16
Yealink SIP-T26P		3	132 x 64 pixels, B&W	13
Yealink SIP-T22P		3	132 x 64 pixels, B&W	3
Yealink SIP-T20P		2	2 x 15 chars, B&W	2
Yealink SIP-T18P		1		2