Yealink SIP-T28P namenjen je poslovnim korisnicima koji zahtevaju bogatu funcionalnost telefona, razumljiv korisnički interfejs i superioran kvalitet zvuka. Temeljen na TI TITAN chipsetu, nudi izvrstan kvalitet zvuka visoke definicije putem TI voice enginea, HD slušalicu, HD zvučnik i HD codec (G.722). Uz veliki grafički zaslon visoke rezolucije sve ukupno 48 tastera, SIP-T28P pruža vrhunsko iskustvo korišćenja pri konfiguraciji, pozivanju, korišćenju XML preglednika itd. Osim toga, da bi se izbjegli sigurnosni problemi pri prenosu vaših razgovora, Yealink SIP-T28P podržava sigurnosne standarde TLS, SRTP, HTTPS, 802.1x, Open VPN i AES enkripciju – koji su neophodni za zaštitu od prisluškivanja i krađe podataka.

Karakteristike

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

IP PBX System Integration

Busy lamp field (BLF), BLF list
Bridged line appearance (BLA)
DND and 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

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

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)
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

Security

Open VPN, 802.1x, VLAN QoS (802.1pq)
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

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) EXT 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