Yealink SIP-T48G โทรศัพท์แบบ IP (IP-Phone) จอ 7 นิ้ว color touch screen 16 SIP Account, HD Voice รองรับ POE

Product Specification

Overview

Yealink SIP-T48G โทรศัพท์แบบ IP (IP-Phone) หน้าจอขนาด 7 นิ้ว 800 x 480-pixel Color Touch Screen รองรับ 16 คู่สาย, 16 SIP Account รองรับ Wifi และ Bluetooth 2 Port Gigabit รองรับ POE มาตรฐาน 802.3af (ไม่มี Adapter ในชุดอุปกรณ์)

Audio Features

HD voice: HD handset, HD speaker Wideband codec: G.722 Narrowband codec: G.711(A/?), 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, SMS, 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 Hot-desking, voice mail, flexible seating Call park, call pickup Executive and Assistant Centralized call recording Visual voice mail Call recording

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

Stand with 2 adjustable angles Wall mountable External Yealink AC adapter (optional):AC 100~240V input and DC 5V/1.2A output Power consumption (PSU): 1.1-2.3W Power consumption (PoE): 1.7-3.2W Dimension(W*D*H*T): 466mm*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 Reset to factory, reboot Package tracing export, system log

Package Features

Yealink SIP-T48G IP phone Handset with handset cord Ethernet Cable (2m CAT5E UTP Cable) Stand Quick Start Guide Power Adapter (Optional) Wall Mount Bracket (Optional)

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 using MD5/MD5-sess OpenVPN, IEEE802.1X IPv6 LLDP/CDP/DHCP VLAN ICE