Store #: 3443
Manufacturer Part No: SIP-T28P
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- TI TITAN chipset and TI voice engine
- 320x160 graphic LCD with 4-level grayscales
- 6 VoIP accounts, Broadsoft 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
Yealink SIP-T28P Specifications
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
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
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
Direct IP call without SIP proxy
Dial number via SIP server
Dial URL via SIP server
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
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: (included) 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
Operating humidity: 10~95%
Storage temperature: up to 60C
If you want to buy a certain quantity and want a volume discount, submit this form and a sales advisor will be in touch with you shortly.
Trade In and Save
Sophie Systems is proud to offer our customers an opportunity to cash in on their unneeded or old equipment. When trading in your equipment you will have the peace of mind knowing that your old electronics are going to be disposed of in an environmentally friendly manner not in a landfill all the while getting a discount on the equipment you buy.
To participate in the trade in program simply inform your sales advisor that you would like to trade in your equipment. Sophie Systems will even provide you with a prepaid UPS shipping label to send us your goods.
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