When an incoming call comes in, how does the host connect to the extension?

General enterprises and companies will have switchboard and extension. When someone dials the switchboard to find the extension number, the operator can directly transfer the traffic to the corresponding extension personnel.

When the caller doesn't know the extension number of the company, he will call the switchboard to inquire, and he can directly say the extension number and ask him to redial.

You can also directly transfer the traffic to the extension. The steps are as follows: press the "flash off" (R) key or press the plug spring pressed by the receiver, dial the extension number, and hang up after hearing the extension bell.