Audio Features
HD voice: HD handset, HD speaker
Hearing aid compatible (HAC) handset
Audio codec: Opus, G.722, G.711 (A/ต), G.723, G.723.1,
G.726, G.729AB, 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)
Built-in Bluetooth for:
Bluetooth headset,
Mobile contacts synchronization
USB port (2.0 compliant) for:
wired/wireless USB headset
Wi-Fi through WF40,
USB call recording through USB flash drive
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
Call recording
Display and Indicator
4.3" 480 x 272-pixel color display with backlight
16 bit depth color
LED for call and message waiting indication
Dual-color (red or green) illuminated LEDs for line status
information
Wallpaper
Intuitive user interface with icons and soft keys
Multilingual user interface
Caller ID with name and number
Screensaver
Power saving
Feature keys
10 line keys with LED
10 line keys can be programmed up to 27 various features
(3-page view)
7 features keys: message, headset, hold, mute, transfer,
redial, hands-free speakerphone
4 context-sensitive "soft 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 3
1 x USB port (2.0 compliant)
1 x RJ9 (4P4C) handset port
1 x RJ9 (4P4C) headset port
Supports up to 3 color-screen expansion modules
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
T54S&T52S unified firmware and Auto-P template
