Yealink SIP-T28P 6 Line Dual Ports with Power HD VOICE SIP T28P SIP IP VOIP OFFICE PHONE TELEFONE Sp

Origin
China
Minimum Order
10
Inspection
N/A
Packing
NEW
Delivery
FOB
Payment
TT,L/C
Keywords
Product Description
Enterprise HD IP Phone





SIP-T28P



The Yealink SIP-T28P represents the next generation VoIP phone designed for business users who need rich telephony features, a friendly user-interface and superb voice quality. Equipped with the TI TITAN chipset, it offers high-definition voice quality through a TI voice engine, HD handset, HD speaker and HD codec (G.722). The large, high-resolution graphical display, combined with up to 48 keys, guarantees an excellent user experience in terms of configuration options, making calls and to access the express XML browse. To ensure that your audio data remains confidential, the Yealink SIP-T28P also supports security standards TLS, SRTP, HTTPS, 802.1x, Open VPN and AES encryption. These guard against electronic eavesdropping and data theft.
Product Feature
Features



TI TITAN chipset and TI voice engine

320x160 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



Specification



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

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 60u00b0C

When it comes to fulfilling computing needs, no company provides better services and equipment than KETHYTON. KETHYTON is a provider of cross platform and business integration products and services such as network security, VoIP, hosting, IT support and more. KETHYTON has become a market leader in infrastructure support and other IT services like networking, data center and network security services.

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