| User Interface Features |
2.8” color LCD screen (320x 240 pixel resolution)
Voicemail support
WebKit-based browser
Adjustable base height
Unicode UTF-8 character support
Single USB port (2.0 compliant) for media and storage applications
Multilingual user interface including Chinese, Danish, Dutch, English (Canada/ US/UK), French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Slovenian, Spanish, and Swedish
Most software-enabled features and capabilities must be supported by the server. Please contact your IP PBX/Softswitch vendor or service provider for a list of supported features. |
| Audio Features |
HD Voice technology delivers lifelike voice quality for each audio path handset, the hands-free speakerphone, and the optional headset
Acoustic Clarity™ technology providing full-duplex conversations, acoustic echo cancellation and background noise suppression
Type 1 compliant (IEEE 1329 full duplex)
Frequency response—150 Hz—7 kHz for handset, optional headset and handsfree speakerphone modes
Codecs: G.711 (A-law and μ-law), G.729AB, G.722, G.722.1, iLBC
Individual volume settings with visual feedback for each audio path
Voice activity detection
Comfort noise generation
DTMF tone generation (RFC 2833 and in-band)
Low-delay audio packet transmission
Adaptive jitter buffers
Packet loss concealment
OPUS support |
| Headset and Handset Compatibility |
Dedicated RJ-9 headset port
Hearing aid compatibility to ITU-T P.370 and TIA 504A standards
Compliant with ADA Section 508 Subpart B 1194.23 (all)
Hearing aid compatible (HAC) handset for magnetic coupling to hearing aids
Compatible with commercially-available TTY adapter equipment |
| Call Handling Features |
4 lines (programmable line keys)
Shared call/bridged line appearance
Busy Lamp Field (BLF)
Flexible line appearance (1 or more line keys can be assigned for each line extension)
Distinctive incoming call treatment/ call waiting
Call timer and call waiting
Call transfer, hold, divert (forward), pickup
Called, calling, connected party information
Local 3-way audio conferencing 1-touch speed dial, redial
Remote missed call notification
Do not disturb function
Electronic hook switch capable
Local configurable digit map/dial plan |
| Open Application Platform |
WebKit-enabled full browser that supports HTML5, CSS, SSL security, and JavaScript
Supports Apps SDK and API for third-party business and personal applications
Bundled with UC Software
Corporate directory access using LDAP
Visual Conference Management |
| Network and Provisioning |
SIP Protocol Support
SDP
IETF SIP (RFC 3261 and companion RFCs)
Two-port gigabit Ethernet switch 10/100/1000Base-TX across LAN and PC ports
Conforms to IEEE802.3-2005 (Clause 40) for Physical media attachment
Conforms to IEEE802.3-2002 (Clause 28) for link partner auto-negotiation
Manual or dynamic host configuration protocol (DHCP) network setup
Time and date synchronization using SNTP
FTP/TFTP/HTTP/HTTPS server-based central provisioning for mass deployments
Provisioning and call server redundancy supported *
QoS Support—IEEE 802.1p/Q tagging
(VLAN), Layer 3 TOS, and DHCP
VLAN—CDP, DHCP VLAN discovery
LLDP-MED for VLAN discovery
Network address translation support for static configuration and “keep-alive”
SIP signaling
RTCP and RTP support
Event logging
Syslog
Hardware diagnostics
Status and statistics reporting
IPv4 and IPv6
TCP
UDP
DNS-SRV
Most software-enabled features and capabilities must be supported by the server. Please contact your IP PBX/Softswitch vendor or service provider for a list of supported features. |
| Security |
802.1X Authentication and EAPOL Media encryption via SRTP
Transport layer security
Encrypted configuration files
Digest authentication
Password login
Support for URL syntax with password for boot server address
HTTPS secure provisioning
Support for signed software executables |
| Power |
Built-in auto sensing IEEE 802.3af Power over Ethernet (Class 2) 4.5 W (Max)
External Universal AC/DC Adapter (optional) 5VDC @ 3A (15W)
ENERGY STAR rated |
| Approvals |
FCC Part 15 (CFR 47) Class B
ICES-003 Class B
EN55032 Class B
ISPR32 Class B
VCCI Class B
EN55024
EN61000-3-2; EN61000-3-3
NZ Telepermit
Korea KCC
UAE TRA
Russia CU
Brazil ANATEL
Australia RCM
South Africa ICASA
Saudi Arabia CITC
China CCC
RoHS Compliant
Planned compliance and localization |
| Safety |
UL 60950-1/62368-1
CE Mark
CAN/CSA C22.2 No 60950-1/62368-1-1
EN 60950-1/62368-1
IEC 60950-1/62368-1
AS/NZS 60950-1 |
| Operating Conditions |
Temperature: 0 to 40°C (+32 to 104°F)
Relative humidity: 5% to 95%, noncondensing |
| Storage Temperature |
-40 to +70°C (-40 to +160°F)
|
| Vvx 250 Comes with |
Console
Handset with handset cord
Network (LAN) cable-CAT-5E
Desk Stand
Setup Sheet |
| Size |
24cm x 23cm x 5.7cm WxHxD
9.4in x 10in x 2.2in WxHxD |
| Weight |
Carton weight: 0.890kg (1.96 lbs) |
0
