The first voice messages were transmitted in the late 19th century with the invention of the telephone by Alexander Graham Bell in 1876. However, earlier experiments with sound recording technology, such as Thomas Edison's phonograph in 1877, also allowed for the recording and playback of voice messages. These innovations marked the beginning of recorded voice communication.
nerve impulses.
The difference: With PSTN, the voice is transmitted through the network of cables. While with VoIP is transmitted through the internet. This is the main difference between the two communication systems.
You can receive the recorded voice messages. The voice messages that are recorded should be present on the drive. The voices can then be sent via attachments.
it was the synapse
We have transmitted the signal.She transmitted the disease to her lover.
it is first converted into an electric signal by your telephone, and then transmitted over the copper wire
Voice mail can record messages that you have missed. It can also save your messages and it records what time that message was recorded. It also lets you know when you get messages.
The first written messages transmitted by air were typically conveyed through smoke signals, which involved creating smoke patterns that could be seen over long distances. Another method was the use of carrier pigeons, which were trained to fly back to their home lofts carrying small messages. These methods allowed for relatively quick communication across distances without the need for direct physical delivery.
autonomic nervous system
Nerve impulses are initiated and transmitted according to nerve reactions and messages that get passed along or transmitted along nerve synapses and zones.
Of the first few search results, onebox.com seems to be the most what you're looking for. They offer call routing, voice mail, and voice-to-text messages.
Peripheral nervous system: