Grandstream GXW 4004

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

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Return Call (*69)

Return Call (*69)The function of the return call allows you to quickly and comfortably connect to the person, who has called you as the last. Simply dial *69 (USA) in order to find out the number and the call time, after that press the “1” key to make the call. In case the number is busy, the system will try to reach the line during 30 minutes and when the person will be available, you will receive a signal and be connected.

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Israel Annatel Global Networks

The Annatel Networks company is registered in France. We offer a telephony service via Internet accessible throughout the world. Annatel offers innovative services in the field of telecoms, pushing the boundaries of technology and threatening the supremac

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