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
Analog GSM Gateway Topex Voxell is a simple and reliable way to reduce the cost of mobile communications for small and medium-sized companies. By connecting Voxell to a corporate telephone system you will be able to send all outgoing mobile calls through a gateway directly to the cellular network that supports GSM/3G standards, skipping expensive connections through wired lines.
Apelby Communications
We are a Germany-based wholesale carrier with offices in the Czech Republic, Slovenia, Malaysia and Vietnam. We specialize in doing VoIP service since our establishment in 2005 and we have continued to grow in both the number of customers and amount of minutes.
Currently we are interconnected with around 200 carriers specially many Tier-1 carriers as T-Mobile, Telefonica, BT, Vodafone, Verizon, Orange, China Mobile, Bharti Airtel, Tata Communications, BICS... and we are terminating around 150 million voice minutes monthly.
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