| Thông số kỹ thuật |
| Tên thông số |
Thông số kỹ thuật |
| Audio Features |
> HD voice: HD handset, HD speaker
> Codecs: AMR-WB (optional), AMR-NB (optional),
G.722, G.711(A/µ), G.723.1, 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 |
| Phone Features |
> 16 VoIP accounts
> Call hold, mute, DND
> One-touch speed dial, hotline
> Call forward, call waiting, call transfer
> Group listening, emergency call
> Redial, call return, auto answer
> 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
> RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
> USB port (2.0 compliant) for:
Bluetooth earphone through BT40,
Contact synchronization through BT40,
Wi-Fi through WF40,
USB call recording through USB flash drive
> Enhanced DSS Key |
| Directory |
> Loal phonebook up to 1000 entries
> Black list
> XML/LDAP remote phonebook
> Intelligent search method
> Phonebook search/import/export
> Call history: dialed/received/missed/forwarded |
| IP-PBX Features |
> Busy Lamp Field (BLF), Bridged Line Apperance(BLA)
> Anonymous call, anonymous call rejection
> Remote office, hot-desking
> Message Waiting Indicator (MWI)
> Voice mail, Music on hold
> Call park, call pickup, Intercom, paging
> Call completion, call recording
> Executive and Assistant
> Centralized call recording
> Visual voice mail |
| Display and Indicator |
> 7" 800 x 480-pixel color touch screen with backlight
> 24 bit depth color
> LED for call and message waiting indication
> Wallpaper
> Intuitive user interface with icons and soft keys
> Multilingual user interface
> Caller ID with name, number and photo
> Screensaver
> Power saving |
| Feature keys |
> 29 one-touch DSS keys
> 7 features keys: message, headset, hold, mute,
transfer, redial, hands-free speakerphone
> 6 navigation keys
> Volume control keys
> Illuminated mute key
> Illuminated headset key
> Illuminated hands-free speakerphone key |
| Interface |
> Dual-port Gigabit Ethernet
> Power over Ethernet (IEEE 802.3af), class 0
> 1 x USB port (2.0 compliant)
> 1xRJ9 (4P4C) handset port
> 1xRJ9 (4P4C) headset port
> 1XRJ12 (6P6C) EXT port:
Supports up to 6 Expansion Modules for an
attendant console application |
| Other Physical Features |
> Color: Classic Grey
> Wall mountable (optional)
> External Yealink AC adapter (optional):
AC 100~240V input and DC 5V/2A output
> Power consumption (PSU): 2.0-6.4W
> Power consumption (PoE): 2.4-7.3W
> Dimension(W*D*H*T):
266mm*226mm*185mm*54mm
> Operating humidity: 10~95%
> Operating temperature: -10~50°C (+14~122°F) |
| 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 traversal: 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
> OpenVPN, IEEE802.1X
> IPv6
> LLDP/CDP/DHCP VLAN
> ICE |
| Package Features |
> Package content:
- Yealink SIP-T48G IP phone
- Handset with handset cord
- Ethernet Cable (2m CAT5E FTP Cable)
- Stand
- Quick Start Guide
- Power Adapter (Optional)
> Qty/CTN: 5 PCS
> N.W/CTN: 8.2 kg
> G.W/CTN: 9 kg
> Giftbox size: 324mm*263mm*128mm
> Carton Meas: 660mm*338mm*273mm |
