Do Not Disturb
By activating this function all incoming calls are blocked and automatically redirected to the answering machine. The function can be switched on and switched off at any moment.
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.
NexBoom
http://www.voip-boom.com Originally founded in 2004 as Champion Communications, NexBoom is headquartered in Greenville, South Carolina. In the early days of the company, Champion became an industry leader in the promotion of Voice over Internet Protocol (
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