Call Waiting
The function is available in some telephone networks and it allows receiving the other call at the moment of the actual conversation by the method of setting the active call in the waiting mode or cancellation. This will let not to miss an important call and to agree upon time when it will be possible to call back.
AddPac AP-GS1004A is one of the models of inter-network VoIP GSM gateways, through which, it is possible to format a single network unit and to use it for VoIP-telephony, analog communication lines and GSM-network.
Hauk
Fa. "Hauk" leistet telemetrische Dienstleistungen der Sendung von Daten in Netz der allgemeinen Benutzung im Gebiet Deutschlands und anderer L
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