Product Details

WSS220 IP Phone Basic Features:

Support SIP 2.0 (RFC3261) and correlative RFCs

Support PSTN and IP

SIP supports multi SIP servers. Can connect to multi SIP servers at the same time.

CodecG.711A/u, G.7231 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 DTMFSupport SIP info, DTMF Relay, RFC2833 9 kind of ring type and 1 user-defined music ring (optional) Advanced Application Features

Large dot matrix LCD display and soft keys make user easier to use

Friendly graphic menu 2 headset interface ( 2.5mm Jack or RJ9 connector)

Multilanguage realizes localization

SIP application: support call forward/ transfer (blind/attended/alert)/ holding/ waiting/ 3 way talking/ conference/ paging and intercom/ call park/ pickup/ join call/ redial and unredial/ click to dial/ vport/secondary dialing automatically/ push to talk

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.

Support Phonebook 500 records

Support voice record on SIP server(optional)

Support SMS

Support Memo

Support alarm clock

Support Speed dial

Support XML

Maintenance and Management

Web ,telnet and keypad management