Telefoni

Yealink SIP-T20P

 

Yealink je proširio svoju ponudu IP telefona novim entry-level modelom SIP-T20P. Opremljen je TI TITAN procesorom i LCD ekranom sa 2x15 znakova, nudi mogućnost 2 VoIP korisnička računa, zvuk visokog kvaliteta, širok raspon mogućnosti kodiranja zvuka, sigurnosnu zaštitu privatnosti, bogate funkcije kao što su XML telefonski imenik, priključenje dodatnih slušalica, PoE, PnP, Auto-provision i kompatibilnost sa vodećim platformama IP telefonskih centrala i soft svičeva. Omogućava korisnicima jednostavno, ugodno i pouzdano telefoniranje uz potpuno zadovoljenje svih osnovnih zahteva poslovnog okruženja. Dodatno, SIP-T20P je lako instalirati, te predstavlja povoljno rešenje kako za firme tako i za kućne korisnike. Postoje verzije telefona sa i bez PoE.


 
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

Phone Features

2 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, 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

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

 

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

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

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
3-line LCD with an icon line and 2x15 characters lines
31 keys including 9 function keys
4 LEDs: 1xpower, 2xline, 1xmessage
1xRJ9 handset port
1xRJ9 headset port
2xRJ45 10/100M Ethernet ports
Wall-mountable
Power adapter: AC 100~240V input and DC 5V/1.2A Output
Power over Ethernet (IEEE 802.3af )
Power consumption: 1.4-2.6W
Net weight: 0.77kg
Dimension: 185 x 200 x 90mm
Operating humidity: 10~95%
Storage temperature: up to 60°C