Caller ID Control
The function allows you choosing a number that you want in order to light up during the call to traditional telephones. You can also unlist the number and it won’t light up.
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.
Redvoiss
RedVoiss is the first ASP (Application Service Provider) to provide IP Telephony in Latin America and Chile. With 8 years of experience, we work with the best equipment technology and through worldwide interconnection agreements, which allow our users to
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