Telefoni
Yealink SIP-T28P
Yealink SIP-T28P predstavlja sledeću generaciju VoIP telefona i namenjen je poslovnim korisnicima koji zahtevaju bogatu funcionalnost telefona, razumljiv korisnički interfejs i superioran kvalitet zvuka. Baziran na TI TITAN procesoru, nudi izvrstan kvalitet zvuka visoke definicije putem TI glasovnog sistema, HD slušalicu, HD zvučnik i HD codec (G.722). Uz veliki grafički ekran visoke rezolucije i sa ukupno 48 tastera, SIP-T28P pruža vrhunsko iskustvo korišćenja pri konfiguraciji, pozivanju i pri korišćenju XML preglednika itd. Osim toga, da bi se izbegli sigurnosni problemi pri prenosu vašeg govora, 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.
| 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 |
