Call logs include the date when you have called, the telephone number to which you called and the duration of the conversation. You can also add notes to the call log. You can review call logs by the telephone.
The common name shared by communication protocols, technologies and
methods ensuring the transfer of the voice signal via the Internet network or
by any other IP-networks. The signal is transferred by the communication
channel in the digital form and, as a rule, before transferring compresses in
order to remove abundance.