International Call Blocking
This function blocks all telephone calls going out of the country, thus, insuring in a case of undesirable international calls.
A Media Gateway Control Protocol (MGCP) is a Voice over Internet Protocol system used to handle the exchange of information and the management of a multimedia conference session. The exchange of information, known as signaling, is responsible for connecting, controlling and terminating sessions. Therefore, an MGCP protocol is used to set up, maintain and end calls between multiple points.
Simple Signal
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