IP20 is the latest enhanced business VoIP phone of ATEL, based on SIP/IAX2 protocol. With sleek and elegant design, large high resolution graphic backlit LCD(128x48MM), RJ9 headset jacks, 2 SIP-line keys, 4 programmable keys with Led, 4 dynamic content- sensitive soft keys, a 5-position navigation key, including keys for voice mail, call transfer, call hold, mute, volume control, plus an excellent full-duplex speakerphone with advanced acoustic echo cancellation, make the IP20 a full-feature and high quality VoIP phone for enhancing office efficiency. Using next generation chipset the IP20 offers unrivalled superb HD Voice Quality, innovative functional richness, friendly user interface, stylish and elegant design. It is definitely able to provide a pleasant and satisfactory end-user experience.
Support SIP 2.0 (RFC3261) and correlative RFCs
Support 2 SIP lines. Can connect to 2 SIP servers at the same time. Codec:G.711A/u, G.723.1 high/low, G.729a/b, G.722,G.726
Echo cancellation: G.168 Compliance in LEC, additional acoustic echo cancellation(AEC) can reach 96ms max filter length in hands-free mode
Support Voice Gain Setting, VAD, CNG
Full duplex hands-free speakerphone
SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server, Peer to Peer/ IP call
DTMF:Support SIP info, DTMF Relay, RFC2833
9 kind of ring type and 5 user- defined music ring (optional)
WAN/LAN: 10/100M Ethernet ports, supports Route and Bridge mode.
Support PPPoE for xDSL
Support basic NAT and NAPT
NAT transverse: support STUN client
Support DHCP client on WAN
Support DHCP server on LAN
Support main DNS and secondary DNS server.
Support DNS Relay, SNTP Client, Firewall
Advanced Application Features
Large Graphic LCD display and soft keys make user easier to use
Friendly graphic menu
headset interface (RJ9 connector)
Multilanguage realizes localization
SIP application: support call forward/ transfer (blind/attended)/ holding/ waiting/ 3 way talking/ conference/pickup/ join call/ redial and unredial/ click to dial/ vport/
Call control features: flexible dial map, hotline, empty calling no. reject service, black list for reject authenticated call, white list, limit call, no disturb, caller ID,
CLIR (reject the anonymous call), CLIP (make a call with anonymous), Dial without register
Incoming calls /outgoing calls / missing calls. Each support 100 records.