OFFER VOIP GATEWAY

GTW801S- voice gateway is an Internet based two port voice ATA. It adapts multi voice control protocols and voice compression codec to directly convert analog voice into IP packet for internet transport, thus effectively using the existing bandwidth to provide PSTN quality voice service. GTW801S is Two port voice gateway supports H323, SIP protocols, offers Two 10/100Mbps Ethernet interface and two RJ11 telephone interface. Therefore, the original analog telephone can dial both IP phone and PSTN, effectively using the existing broadband resources. It is compatible with various IPPBX and VoIP voice gateway to provide broadband IP voice service. It suitable for enterprise, small office and residential applications etc.
Key features
call control /voip Features
SIP RFC3261
H323 V4
Tone generation and Local DTMF re-generation according with ITU-T
voice algorithms
G.711(A-law or u-law)
G.723.1(6.3kbps,5.3 kbps)
G729/iLBC
AGC(Auto Gain Control)
G.168/165 compliant 16ms echo cancellation
AEC(Auto Echo Cancellation)
VAD (Voice Activity Detection)
CNG(Comfort Noise Generation)
voice Features
call hold
call waiting and per call-waiting blocking
call forward (Always, busy, no answer, power off)
voip speed dial
VoIP digital map
E.164 dial plan and customize dial rules
caller number/name display
voice promote
configurable jitter buffer size
configurable audio frame
Support Bridge and Router model
data features
Static/Dynamic WAN-IP-Addressing
PPPoE

management and provisioning
http, telnet
adjustable user password and super password
URL based FTP,HTTP and TFTP auto provision
Configure file download and upload by palmtool
safe mode provide reliability
four servers store and load by keypad
100 entries for speed dial number
Multiply Language support
Interfaces
1 X Wan
1 X LAN
1 X RESET
1 X FXS Port for Tel
1 X life-line for Pstn
Supported specification and applications
data networking
MAC Address
TCP:Transmission Control Protocol
DHCP:Dynamic Host Configuration Protocol
PPPoE：PPP Protocol over Ethernet
SNTP, Simple Network Time Protocol
STUN - Simple Traversal of User Datagram ...
TOS:Type of service
DNS：Domain Name Server
RTP: Real-time Transport Protocol
RTCP:Real-time Control Protocol
Telnet:Internet's remote login protocol
HTTP:Hyper Text Transfer protocol
FTP:File Transfer protocol
TFTP:Trivial File Transfer Protocol

Environmental
Electric requirements
Voltage: 9V ~ 24V.
Power adapter: output DC 12V/1A

Operating requirement.
Operation temperature: 0 to 40° C (32° to 104°F).
Storage temperature: -30° to 65° C (-22° to 149°F).
Humidity: 10 to 90% no dew.
Setting is easy: user just connects the IP phone WAN port with xADSL, Cable Modem or LAN etc. can be used. The default setting is DHCP for the IP address. For the fixed IP address setting, please refer the setting manual.
Pre-pay calling plan: Total free for the IP phone to all our VoIP devices published by ZHEREN. There is a SIP account imbedded in the device provides the traffic to all over the world telephone at very low cost. (The account plan charge US$1 monthly for SIP account service from the second year). To USA, UK, Hong Kong etc. only need $0.02 per minute.
The virtual phone number service: Provide more than 50 countries local phone number bundled to IP phone. User can choose its own geographical phone number to receive calls totally free! It also supports Transfer, Three parties calling, voice mail service etc.
User can check the consumption cost and called phone number etc. through our platform. Buy the rechargeable SIP card from us to re-charge your account.