Recall dial tone-13 dBm0 3 bursts of 0.1 s followed by a continuous tone (note c) Recall dial tone Modern PABX only (note g)-16 dBm0 3 bursts of 0.1 s followed by a continuous tone (note c) Busy ...
If your organization is like most, you’re still paying a communications service provider for dial tone lines, typically delivered on copper cable. These are also called POTS lines (Plain Old Telephone ...
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