Blacklist
The blacklist represents itself a list or register of entities which are denied privileges, service, mobility, access and admission due to these or other reasons. This function blocks all connections from the subscribers who are in the list.
In the past, when you call an office building or business, you would either be transferred to the department you want to talk to, or given their extension number. This extension is usually a 2-3 digit code that when dialed, transfers you automatically to the particular person or department you want to speak with. The reason why this code works is because it is programmed into a PBX system.
Xpander Communications
Xpander Communications is an IP technology and telecommunications firm based in Margate, FL. With over 20 years telecommunications experience on board, the firm has evolved from a local provider to a global solutions builder with the ability to help any s
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