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Elegant Gigabit IP Phone with color display
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|Audio Features||HD voice: HD handset, HD speaker | Hearing aid compatible (HAC) handset | Wideband codec: Opus, G.722 | Narrowband codec: Opus, 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 | One-touch speed dial, redial | Call forward, call waiting | Call transfer, call hold | Call return, group listening | Mute, auto answer, DND | 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/URI | RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035) | USB port (2.0 compliant) | Enhanced DSS key|
|Directory||Local phonebook up to 1000 entries | Black list | XML/LDAP remote phonebook | Smart dialing | 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" 800x480-pixel graphical LCD with backlight | 24 bit depth color | LED for call and message waiting indication | Wallpaper | Dual-color (red or green) illuminated LEDs for line status information | Intuitive user interface with icons and soft keys | Multilingual user interface | Caller ID with name and number | Screensaver | Power saving|
|Feature keys||29 DSS keys | 7 features keys | 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 2 | 1 x USB port (2.0 compliant) | 1 x RJ9 (4P4C) handset port | 1 x RJ9 (4P4C) Headsetanschluss | 1 x RJ12 (6P6C) EHS port | Unterstützt bis zu 6 Erweiterungsmodule|
|Other Physical Features||Wall mountable (optional) | External Yealink AC adapter (optional)? AC 100~240V input and DC 5V/2A output | Power consumption (PSU): 2.23-7.29W | Power consumption (PoE): 3.19-10.78W | Dimension (W*D*H*T): 266mm*226mm*185mm*54mm | Operating humidity: 10~95% | Operating temperature: -10~50°C|
|Management||Configuration: browser/phone/auto-provision | Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy | Auto-provision with PnP | Broadsoft device management | 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 using MD5/MD5-sess | OpenVPN, IEEE802.1X | IPv6 | LLDP/CDP/DHCP VLAN | ICE|
|Package Features||Package content: Yealink SIP-T48S IP phone | Handset with handset cord | Ethernet Cable (2m CAT5E UTP Cable) | Stand | Quick Start Guide | Power Adapter (Optional) | Wall Mount Bracket (Optional)|
The SIP-T48S is a dynamic communications solution for busy executives and professionals. This phone offers a large touch screen that makes switching between pages and applications swift, easy and convenient. The SIP-T48S with Yealink Optima HD Voice technology and wideband codec of Opus delivers superb audio quality and crystal clear voice communications. The SIP-T48S is also built with Gigabit Ethernet technology, for rapid call handling and use with accessories like a Bluetooth USB Dongle and a Wi-Fi USB Dongle. The Yealink‘s new T4S series offers the same elegant appearance of the T4 line, but with improvements for greater interoperability and collaboration.