Caller ID is one common feature of telephones, both mobile and standard landline. Any modern cell phone determines the number of an incoming call - the display screen shows the number of the cell or city from which the call is made.
Instructions
Step 1
If the owner of the cell phone has set a certain melody or signal for the caller, then when he calls, the set melody will sound along with the display of the number. Any cell phone records an incoming call, saving the caller's number, this allows, if necessary, to call back to this number, if it was not possible to answer immediately.
Step 2
When coordinating with the mobile operator the possibility of identifying telephone numbers, subscribers can activate the "anti-identifying number" service, that is, when they call any numbers from their cell phone, their number is not displayed on the display and is not detected. This function is paid and is subject to a tariffed subscription fee and a one-time payment upon connection.
Step 3
On a standard landline telephone, you can also connect the number identification function. You can immediately purchase a landline telephone with a hardware caller ID, and you can also connect the function - automatic identification of the number of an incoming call to the PBX.
Step 4
This service is paid and is subject to a monthly subscription fee. Some telecom operators offer Caller-id service, which allows you to identify provincial and federal phone numbers. Such a service is provided upon written request.
