Điện thoại IP Phone Yealink SIP-T48G
Điện thoại IP Yealink SIP-T48G
Đặc tính kỹ thuật
Phone Features |
6 VoIP accounts |
Call hold, mute, DND |
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One-touch speed dial, hotline |
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Call forward, call waiting, call transfer |
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Group listening, emergency call |
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Redial, call return, auto answer |
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3-way conferencing |
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Direct IP call without SIP proxy |
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Ring tone selection/import/delete |
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Set date time manually or automatically |
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Dial plan, XML Browser, action URL/URI |
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Display and Indicator |
7 inch 800 x 480-pixel color touch screen with backlight |
24 bit depth color |
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LED for call and message waiting indication |
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Wallpaper |
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Intuitive user interface with icons and soft keys |
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National language selection |
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Caller ID with name, number and photo |
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Audio Features |
HD voice: HD handset, HD speaker |
Codecs: G.722, G.711(A/µ), G.723.1, G.729AB, G.726, iLBC |
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DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO |
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Full-duplex hands-free speakerphone with AEC |
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Feature keys |
29 one-touch DSS keys |
7 features keys: message, headset, hold, mute, transfer, redial, hands-free speakerphone |
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6 navigation keys |
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Volume control keys |
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Illuminated mute key |
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Illuminated headset key |
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Illuminated hands-free speakerphone key |
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IP-PBX Features |
Busy Lamp Field (BLF) |
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Bridged Line Apperance(BLA) |
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Anonymous call, anonymous call rejection |
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Remote office, hot-desking |
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Message Waiting Indicator (MWI) |
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Voice mail,call park, call pickup |
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Intercom, paging, music on hold |
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Call completion, call recording |
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Management |
Configuration: browser/phone/auto-provision |
Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy |
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Auto-provision with PnP |
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Zero-sp-touch, TR-069 |
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Phone lock for personal privacy protection |
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Reset to factory, reboot |
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Package tracing export, system log |
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Network and Security |
SIP v1 (RFC2543), v2 (RFC3261) |
Call server redundancy supported |
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NAT transverse: STUN mode |
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Proxy mode and peer-to-peer SIP link mode |
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IP assignment: static/DHCP/PPPoE |
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HTTP/HTTPS web server |
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Time and date synchronization using SNTP |
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UDP/TCP/DNS-SRV(RFC 3263) |
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QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP |
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SRTP for voice |
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Transport Layer Security (TLS) |
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HTTPS certificate manager |
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AES encryption for configuration file |
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Digest authentication using MD5/MD5-sess |
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OpenVPN, IEEE802.1X |
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Bảo hành: 12 tháng.