Product Description
UC923 is an innovative Gigabit Color IP Phone, 2.8ā€¯ TFT-LCD with 320*240 pixel. It supports up to 5-way conference. UC923 is optimized for executive use for major decision makers, administrative assistants and those working with bandwidth-intensive application on collocated PCs. The high-resolution TFT-LCD and HD Voice bring you the lifelike visual and audio experience.
Phone Features
- 3 SIP accounts
- Call hold, mute, DND
- One-touch speed dial, hotline
- Call forward, call waiting, call transfer
- Redial, call return, auto answer, direct IP call
- 5-way conferencing
- XML Browser, action URL/URI
- Group listening, SMS, emergency call
- Ring tone selection/provisioning
- Set date time automatically or manually
- Dial plan per account
- RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
Voice Codecs Features
- HD voice: HD handset, HD speaker
- Codecs: iLBC, G.722, G.711(A/μ),
- GSM_FR, G.723, G.729AB, G.726-32
- DTMF: In-band, RFC 2833, SIP INFO
- Full-duplex hands-free speakerphone with AEC
- VAD, AGC, CNG, AEC, PLC, AJB
Directory
- Local phonebook up to 1000 entries
- XML/LDAP remote phonebook
- Intelligent search method
- Phonebook search/import/export
- Call history: dialed/received/missed/forwarded
- Black list
IP-PBX Features
- Busy Lamp Field (BLF), bridged Line Appearance(BLA)
- Anonymous call, anonymous call rejection
- Message Waiting Indicator (MWI) , voice mail
- Call park, call pickup
- Intercom, paging
- Music on hold
- Hot-desking
Display and Indicator
- 2.8" 320 x 240-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, national language selection
- Intuitive user interface with icons and soft keys
- Caller ID with name, number and photo
Feature keys
- 6 line keys with LED
- Paperless DSS keys up to 20 various features
- 8 features keys: voice mail, headset, mute,
- 4 context-sensitive “soft” keys
- Speaker, conference, hold, transfer,redial
- 6 navigation keys , volume control keys
- Illuminated speaker key/headset key/mute key
Interface
- Dual-port Gigabit Ethernet
- Power over Ethernet (IEEE 802.3af), class 3
- 1xRJ9 (4P4C) handset port
- 1xRJ9 (4P4C) headset port
- 1xRJ12 EXT port supports up to 6 Expansion Modules
Physical Features
- Stand with 2 adjustable angles(45°, 55°)
- Wall mountable
- AC adapter : 100~240V input and DC 5V/1.2A output
- Power consumption (PSU): 1.8~4.4W
- Power consumption (PoE): 2.3~5.3W
- Operating humidity: 10~95%
- Operating temperature: -10~50°C
Management
- Configuration: browser/LCD-Menu/auto-provision
- Auto provision via HTTP/HTTPS FTP/TFTP
- Auto-provision with PnP
- Reset to factory, restart, reboot
- Local tracing log export, system log
- Phone lock for personal privacy protection
Network and Security
- SIP v1 (RFC2543), v2 (RFC3261)
- SIP server/proxy redundancy
- NAT Traversal: STUN mode
- DHCP/static/PPPoE/IEEE802.1X/open VPN
- HTTP/HTTPS web server
- Time and date synchronization by SNTP
- DNS-NAPTR/DNS-SRV(RFC 3263)
- QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
- TLS(Transport Layer Security), SRTP
- HTTPS certificate manager
- AES encryption for configuration file
- Digest authentication using MD5/MD5-sess
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