Free In-Network Calling
Calls within the operator’s network are absolutely free of charge.
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.
BLUCOWS LTD (Seoul)
Experienced engineers of over 100 years of combined data and voice network, carrier grade-global level experience to offer all the IP gain without the pain to clients utilizing just enough resources to drive communication costs toward zero.
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