Voip gateway
Ieee 802.3 10 base tsupport dhcp, pppoe dns telnet
Support g.711a/ug.723.1, g.729 /a/b/ab and gsm610 voice codec
Sip, h.323 v4 protocalsip rfc3261support http, https, ftp upgrade
Tcp/ip: internet protocalsupport rtp rtcp protocal
Support vad/cngone wan, one lan, support router
Call forward (always, busy, no answer), call waiting and per call-waiting blocking
Caller number/name display caller id /block outgoing caller-id/reject anonymous call
A voice activity detection (vad) facsimile protocol(option): t.30/t.38
Voip speed dial, voip digital mapper area ring tone supportdnd(do not disturb) mwi
G configurable/adaptive jitter buffer sizesupport vlan protocalsupport web, ivr to configur
Voip phone with fxo
Two separated uart for cpu and dsp32-bit risc cpu with 125mhz clock rate16-bit fixed-point dsp with 125mhz clock ratemax. Support 32mbytes sdram and 16mbytes flash
Support 1 line for voip call, sip(rfc2543, arfc3261)phonebook with 100 groups memory
Network protocoltftp client/dhcp client/ pppoe clienttelnet/http server dns clientiptcpudp rtp rtcpipicmparprarpsntp
Voice qualityvad: voice activity detectioncng: comfortable noise generatolec: line echo cancellerpacket loss compensationadaptive jitter buffer
Codecg.711: 64k bit/s (pcm)g.723.1: 6.3k / 5.3k bit/sg.726: 16k / 24k / 32k / 40k bit/s (adpcm)g.729a 8k bit/s (cs-acelp)g.729b: adds vad & cng to g.729
Call functioncall holdcall waitingcall forwardcaller id3-way conference
Dtmf functionin-band dtmfout-of band dtmfsip info
Sip serverregistrar server (three sip account)outbound proxy
A phone functionvolume adjustmentspeed dial, phone bookflashspeaker phone
Ip assignmentstatic ip and dhcppppoe support for adsl or cable modem
G securityhttp 1.1 basic/digest authentication for web setupmd5 for sip authentication (rfc2069/ rfc 2617)
Voip sip phone +nxd-804support poe key features:
Ieee 802.3af compliant input interface
Complete input / output isolation
Efficiency: 78% minimalover load & short circuit protection
Without fxo setting.
Voip phone
Two separated uart for cpu and dsp+32-bit risc cpu with 125mhz clock rate+16-bit fixed-point dsp with 125mhz clock rate+max. Support 32mbytes sdram and 16mbytes flash
Support 1 line for voip call, sip(rfc2543, arfc3261)+phonebook with 100 groups memory+
Network protocoltftp client/dhcp client/ pppoe client+telnet/http serverdns client+ipftcpfudpf rtpfrtcp+ipficmpfarpfrarpfsntp
Voice qualityvad: voice activity detection+cng: comfortable noise generato+lec: line echo canceller+packet loss compensation+adaptive jitter buffer+
Codecg.711: 64k bit/s (pcm)+g.723.1: 6.3k / 5.3k bit/s+g.726: 16k / 24k / 32k / 40k bit/s (adpcm)+g.729a 8k bit/s (cs-acelp)+g.729b: adds vad & cng to g.729+
Call functioncall hold+call waiting+call forward+caller id+3-way conference
Dtmf functionin-band dtmf+out-of band dtmf+sip info+
Sip serverregistrar server (three sip account)+outbound proxy+
Phone functionvolume adjustment+speed dial, phone book+flash+speaker phone+
Ip assignmentstatic ip and dhcp+pppoe support for adsl or cable modem+
G securityhttp 1.1 basic/digest authentication for web setup+md5 for sip authentication (rfc2069/ rfc 2617)+
