H239 Technical Specifications
Avaya H239 IP Phone
Phone Features
Vxworks OS | Support SIP2.0 (RFC3261) and correlative RFCs
| SIP supports 1 SIP servers, and backup SIP proxy servers |
Supports SIP UDP/TCP/TLS
Key Features 6 soft keys programmable | Multi language displayed (web)
Audio
HD voice: HD handset | Codec: G.711A/U, G.723.1 high/low,
G.729AB, G.722, G.726-32 | DTMF: in-band, RFC2833 and SIP
INFO | Full-duplex acoustic echo canceller – hands-free mode|
Voice activity detection/comfort noise generation/
background noise estimation/noise reduction | Packet loss
concealment | Dynamic adaptive jitter buffer up to 300ms |
DTMF: in-band, out-of-band – DTMF-relay (RFC2833)/SIP
INFO
Advanced Features
Call transfer | Call holding | Call waiting | Redial | Call
completion | Predial | MWI | Flexible dial plan | Barring
function for outgoing calls | Do not disturb | Auto answer |
CLIR (rejects anonymous calls) | CLIP (to make an anonymous
call) | Dial without registration | Call logs with missed calls/
incoming calls/outgoing calls (Each support 300 records) |
Speed dial | Hotline/warm-line | Password dial | DTMF hidden
| Action URL/active URI | Multicast | Web dial | Emergency
call
Network/Security
Features
WAN/LAN: 10/100M Ethernet ports (bridge mode) | IP
configuration: Static/DHCP/PPPoE | Network access control:
802.1x | VPN:L2TP (basic unencrypted)/OpenVPN | VLAN |
QoS
Deployment &
Maintenance
Web management portal | Web-based packet dump |
Configuration export/import | Firmware upgrade | Syslog
Physical Features
Adapter input: AC100-240V | Adapter output: DC 5V/1A |
WAN Port-10/100 BASE-T RJ-45 for LAN | LAN Port-10/100
BASE-T RJ-45 for PC | Handset: RJ9 | Power consumption:
IDLE: 2.5 W active: 2.8W | Operation temperature: 0~40 °C |
Relative humidity: 10~65% | Main chipset: Broadcom | SDRAM:
16 MB | FLASH: 8 MB |
Call Control
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