Product Introduction:
Sip Phone is provided by Long Champ Technology Limited,a major Plastics & Products supplier in Chemicals Material wholesale industry in China.You can check out the specification of Sip Phone below or get any optional result clicking into the following keywords SIP Phone , Sip Phone , SkyBox , Description , Features , Details and you can check the authentications and testimonials of Sip Phone .
Description:
Two 100Mbps fast ethernet are compatible with all other 10Mbps ethernet environments
Can make/receive VOIP and PSTN call Support SIP 2.0(RFC 3261). TCP/UDP/IP. RTP/RTCP. HTTP. ICMP, ARP/RARP, DNS, DHCP (Both client and server), NTP, PPPoE, STUN, TFTP, etc.
Built-in router, NAT, gateway, LAN pass and DMZ port forwarding
Can use with other SIP soft phone terminal unit.
Use ARM9 CPU to manage network and use powerful digital signal processing (DSP) to deal with audio, advanced adaptive jitter control and packet loss concealment technology ensure superb audio quality.
Support various voice codec including G.711U, G.711A, G.729A.
Support Caller ID/Name display or block.
Support call waiting and forwarding.
Support in-band and out-of-band DTMF transfer.
Dial plans, dial tone, busy tone, ring back tone. Alert tone can be set flexibly.
Support silence suppression, VAD(Voice Activity detection), CNG(Comfort Noise Generation), line echo cancellation (G.168), and AGC (Automatic Gain Control)
Support standard encryption and authentication ( DIGEST using MD5 and MD5-sess)
Support for layer 2 (802.1Q VLAN,802.1p) and layer 3 QoS (ToS DiffServ. MPLS)
Support automated NAT traversal without manual manipulation of firewall/NAT
Support firmware upgrade via TFTP, FTP and HTTP
Compact, lightweight Universal Power adapter
