Grandstream GXW 4004
Grandstream GXW 4004 offers small organizations, home users, remote offices and companies with a territorial work system a high-performance solution with excellent price/quality ratio to more effectively manage the cost of communication, while expanding the functionality of existing telephone systems in organization. Grandstream GXW 4004 is a solution, which easily integrates into existing VoIP FXS phone systems and FXO gateways.
GXW 4004 was designed to be compatible with popular IP PBX soft switches and a big number of various SIP oriented devices. The device was developed using open standards. GXW4004 gateways have compact design, extraordinary quality of voice transfer, rich functionality, high security and unsurpassed price/quality ratio.
Technical Characteristics:
4 analog FXS ports
2x RJ-45 ports
TFTP and HTTP
SIP protocol (RFC3261)
T38 Support
Web Interface and configuration
RTP/RTCP/PPPoE support
QoS: Diffserv, TOS, 802.1p/q support
1 PSTN linear port RJ11 for Fail-Over PSTN
Registration of up to 2 SIP account per port
Audio codecs: G711u/a , G723, G726, G728, G729a/b/e, iLBC и T.38
DHCP client/server, NAT router
Security features TLS/SIPS/HTTPS/Telnet
Power 12V DC
FCC, CE standards
This service allows the subscriber making calls from any telephone to any number and the bill for these calls will be charged from the account indicated on the Virtual Calling Card (VCC), the system, which does not refer to the line from which the call is made. “Virtual Calling Card” works by the method of so called “Access Code”, the service access code. All calls with virtual telephone cards are preceded by the entrance of the access code. After dialing the access code the subscriber will be offered to dial the virtual card number, and after that the number of the desired subscriber.
Dutchphone
Using an existing high-speed Internet connection, NationPhone technology enables anyone to make and receive phone calls - worldwide - with a touch-tone telephone from any country as if they were still at home. Offering quality phone service bundled with e
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