SIP/IAX2 gateway with lifeline, support VPN, auto provisioning.

Single port with PSTN VoIP gateway supporting SIP/IAX2 protocol, support VPN, auto provisioning, VLAN. Via enterprise VPN and IP private line,it supports simultaneous access of IP audio and date service.Besides,it is gateway with PSTN suitable for VOIP service provider, can work with Asterisk IP PBX perfectly.
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Support Protocol:
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Support SIP (RFC3261, RFC2543)
D9m.u;vu$t5@ Support IAX2
\ E%M1q6raS Support Reverse polarity
8|-W{Q t3i!q Support voice code: G711A/u, G729, G726, iLBC8K6d(`
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Support G.168 echo cancellation standard, compliant 96ms echo cancellation with speaker
\Md;^? Support Jitter Buffer, VAD, CNG, SIP/IAX2, domain name register, point to point communication..L CE Xhc
Support the voice communication through RTP and RTCP.
B6w\(S~8ncp3B;eV Support the DTMF Inbound/Outbound transmission; SIP info, DTMF Relay, RFC2833
2D3G{_X/u Support standards of the ring in different countries and regions.e`zI9n:@1Y
NAT penetration, support STUN client, CITRON, AVS etc..
0P@ID'g6C:W Support SIP domain, SIP Authentication (none basic, MD5), domain name parse.
}e7w:`&Z+K Support two SIP servers (Public Server / Private Server) synchronously, make a call by either proxy.
/M%_5vZ(A$Kj _j Support SIP application, including SIP Call forward/transfer/holding/waiting.
7n\7A%D.` Support L2TP protocol y i:g
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:` pT:VUx4a4W Network Features:#O\hr6@!f;Y:Nb&F

-Kqc3T"G Support two models: Bridge and Router, and integrates the router functions of these two ports.LD7p*tr^f Pq
Support basic NAT and NAPT ?-O8I!{m;SP4x
Support PPPoE for xDSL, and support redial automatically when its offline
.Bg2g.Lt1iS Support DHCP client for WAN portF!n[^:]&]0p
Support DHCP server for LAN port
,\ke,hBT1h Support DNS relay for LAN port, and provide DNS service for LAN network devices.o2X'n+|Y0s
Use the advanced technology DSP to ensure high quality voice iw`'[0_E;K
Use the advanced buffer technology to avoid the information package delay too long or lost.
q'L$W']6TG3W,dJ0uL Support Network Tools that includes ping, trace route and telnet clientJb6tHx
Support 3 methods to configure the WAN IP: Static (static configuration for LAN), DHCP (Dynamic query through LAN) and PPPoE (Dynamic query through ADSL)  l$`-W:N,{
Provide firewall control for small size of LAN port|c(f3Xg)mGh Q
Provide the communication PRI available for the small LAN of LAN portlRow;M CLw,N i
Support Qos (802.1p) for the second Layer
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Advanced Functions:
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*o6R | M1@u^t [+O It can register to two SIP server synchronously,one IAX2 systems and a PSTN number, it has 3 VOIP number and 1 PSTN number, that means one phone has 4 numberss_a CL T
Call waiting, call transfer, 3 ways calling, many modes call forward@sl`E3r"Y9tV+~
Switch outgoing call freely between VOIP and PSTN9i N)v:wVw
Incoming display, forbid call out; setup avoid-disturb, auto answer, off hook auto dial, quick dial
2e$_"Go[.G Setup blacklist number and limit number UwZ&ZAcl KCnz
Support point-to-point call#`blM^ND
Setup the end number method(Q{zX#a*T&e&|\8DU
Setup fixed call method
lw,a.r9{$~)`:U Support Silence Suppression, VAD (Voice Activity Detection)hT2i4{(KF3T
Support CNG (Comfort Noise Generation)
6o7c@u M Support Echo Cancellation and AGC (Automatic Gain Control):T({2}2\z!}
Support Polarity reversalZ
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Support VPN (L2TP), can be used in the VPN special network
W Yu9{3t8r(? O Support SIP register failure detection, offer busy tone, when the telephone is out of order
.lxM&?&j Support line detection, busy tone when no line availableht6ib2G

A#S m"d9\cK{ Configuration, management and maintenance:

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Support post mode and can update gateway via post mode
k @i!]VJk5f$[+L Support to operate and configure the gateway by keyboard and Http mode, and support the filtration restriction on user IP address
U;ZjC2K5Sa Support to update the software and configuration via HTTP, FTP, TFTPIJ} h L.Vm
Support multi-administrator management, user name, password; Support reversal Telnet through NAT/ Firewall to manage long-distance.
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Our IAD serial gateway supports SIP protocol to enable users to make local, long distance and international telephone/FAX calls by using existing telephony device. p,Uh2]Y*lR3k0k
[img]http://www.5111soft.com/uploadfile/20080523072809kuHWl.jpg[/img]