Điện thoại voip yealink SIP-T42G

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Yealink SIP-T42G được thiết kế với 12 tài khoản SIP, màn hình LCD 2.7 inch (192 x 64 pixel), 6 phím đa chức năng có thể được lập trình lên đến 15 tính năng khác nhau cho phép người dùng trải nghiệm âm thanh chất lượng HD. Mã sản phẩm: SIP-T42G Bảo hành: 12 tháng

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Mô tả

Thông số thuật: Điện Thoại IP Yealink SIP-T42G
Phone Features
– 3 VoIP accounts
– One-touch speed dial, redial
– Call forward, call waiting, call transfer, call hold
– Call return, group listening
– Mute, auto answer, DND
– Call history: dialed/received/missed/forwarded
– 3-way conference call
– Direct IP call without SIP proxy
– Ring tone selection/import/delete
– Hotline, emergency call
– Set date time manually or automatically
– Dial Plan, XML Browser, action URL

Audio Features
– HD voice: HD handset, HD speaker
– Wideband codec: G.722
– Narrowband codec: G.711(A/μ), G.723, G.729AB, G.726, GSM
– DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO
– Full-duplex hands-free speakerphone with AEC, VAD, CNG, AEC, PLC, AJB, AGC

IP-PBX and BroadSoft Features
– Busy Lamp Field (BLF), BLF list
– Bridged Line Apperance(BLA)/SCA
– Anonymous call, anonymous call rejection
– DND & forward synchronization
– BroadWorks anywhere
– N-Way Calling, remote office
– Network call logs
– BroadSoft call center features
– Message Waiting Indicator (MWI)
– Voice mailđcall park, call pickup
– Intercom, paging, music on hold
– Call recording, hot-desking

Feature keys
– 6 line keys with LED
– 6 line keys can be programmed up to 15
– various features (3-page view)
– 5 features keys: message, headset, mute, redial, hands-free speakerphone
– 4 context-sensitive “soft” keys
– 6 navigation keys
– 2 volume control keys
– Illuminated mute key
– Illuminated headset key
– Illuminated hands-free speakerphone key

Network and Security
– SIP v1 (RFC2543), v2 (RFC3261)
– 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

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