Novi model Yealinka SIP-T21P E2 ponovno podiže ljestvicu u konkurenciji "entry-level" IP telefona. Pri izradi su korišteni materijali visoke kvalitete, a najznačajnija novost u odnosu na prethodnika je dodatak pozadinskog osvjetljenja zaslona koji je i dalje u razlučivosti 132x64 piksela, a jasno prikazuje 5 linija teksta. HD kvaliteta zvuka, dva VoIP korisnička računa, jednostavne, fleksibilne i sigurne opcije instalacije, kao i IPv6, Open VPN, redundancy server, SRTP/ HTTPS/ TLS, 802.1x - samo su dio značajki ovog telefona.

Cjenovno vrlo prihvatljiv, a istovremeno vrlo bogat mogućnostima, SIP-T21P E2 predstavlja idealno rješenje kako za manja, tako i za veća poslovna okruženja.

•     Dva 10/100 Ethernet porta, PoE
•     Grafički zaslon 132x64 piksela s pozadinskim osvjetljenjem
•     Yealink HD Voice
•     2 VoIP računa
•     Podrška za naglavne slušalice
•     Mogućnost montaže na zid
•     XML/LDAP udaljeni imenik

• 2 VoIP accounts
• Call hold, mute, DND
• One-touch speed dial, hotline
• Call forward, call waiting, call transfer
• Group listening, SMS, emergency call
• Redial, call return, auto answer
• Local 3-way conferencing
• Direct IP call without SIP proxy
• Ring tone selection/import/delete
• Set date time manually or automatically
• Dial plan
• XML Browser, action URL/URI
• Integrated Screenshots
• RTCP-XR

• Busy Lamp Field (BLF)
• Bridged Line Apperance(BLA)
• Anonymous call, anonymous call rejection
• Message Waiting Indicator (MWI)
• Voice mail, call park, call pickup
• Intercom, paging, music on hold, emergency call
• Call completion, call recording, hot-deskin

• HD voice: HD handset, HD speaker

• Wideband codec: G.722
• Narrowband codec: G.711(A/μ), G.729AB,G.726, iLBC
• DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO
• Full-duplex hands-free speakerphone with AEC
• VAD, CNG, AEC, PLC, AJB, AGC

• Local phonebook up to 1000 entries
• Black list
• XML/LDAP remote phonebook
• Intelligent search method
• Phonebook search/import/export
• Call history: dialed/received/missed/forwarded

Display and Indicator

• 132x64-pixel graphical LCD with backlight

• LED for call and message waiting indication
• Dual-color (red or green) illuminated LEDs for line status information
• Intuitive user interface with icons and soft keys
• National language selection
• Caller ID with name, number

Feature keys

• 2 line keys with LED
• 6 features keys: message, headset, redial, tran, mute, hands-free speakerphone
• 6 navigation keys
• Volume control keys

Interface

• 2xRJ45 10/100M Ethernet ports
• Power over Ethernet (IEEE 802.3af), class 2
• 1xRJ9 (4P4C) handset port
• 1xRJ9 (4P4C) headset port

Management

• Configuration: browser/phone/auto-provision
• Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
• Auto-provision with PnP
• Zero-sp-touch, TR-069
• Phone lock for personal privacy protection
• Reset to factory, reboot
• Package tracing export, system log

Network and Security

• SIP v1 (RFC2543), v2 (RFC3261)
• Call server redundancy supported
• NAT transverse: STUN mode
• Proxy mode and peer-to-peer SIP link mode
• IP assignment: static/DHCP
• HTTP/HTTPS web server
• Time and date synchronization using SNTP
• UDP/TCP/DNS-SRV(RFC 3263)
• QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
• SRTP for voice
• Transport Layer Security (TLS)
• HTTPS certificate manager
• AES encryption for configuration file
• Digest authentication using MD5/MD5-sess
• OpenVPN, IEEE802.1X
• IPv6

Other Physical Features

• Wall mountable
• External universal AC adapter (optional): AC 100~240V input and DC 5V/600mA output
• Power consumption (PSU): 1.2-1.9W
• Power consumption (PoE): 1.8-2.3W
• Dimension(W*D*H*T): 209mm*188mm*150mm*41mm
• Operating humidity: 10~95%
• Operating temperature: -10~50°C