Describe the algorithm used by a telephone to place a phone call. (You maygive your description in either English or a pseudocode, whichever you findmore convenient.)

How does a call center work?

Which of the following technologies can be used to make a phone call over an Internet connection?(1 Point)VoIPTCPUDPIoT

___ refers to an automated phone call used to contact thousands of voters simultaneously; it may feature a recorded message by the candidate or a popular party leader—or an attack on the opponent.Group of answer choicesRobocallAutomated callnone of the answers mentionedVoters call PreviousNext

Mobile PhoneCreate a program that implements a simple mobile phone with the following capabilities.1.  Implement the master class MobilePhone, that holds the ArrayList of Contacts, with the following attributes:    -  Two fields, a String called myNumber and an ArrayList of type Contact called myContacts.    -  A constructor that takes a String (the phone number) and initialises myNumber and instantiates myContacts.    -  And seven methods, they are (their functions are in their names):        -  addNewContact(), has one parameter of type Contact and returns a boolean. Returns true if the contact doesn't exists, or false if the contact already exists.        -  updateContact(), has two parameters of type Contact (the old contact that will be updated with the new contact) and returns a boolean. Returns true if the contact exists and was updated successfully, or false if the contact doesn't exists.        -  removeContact(), has one parameter of type Contact and returns a boolean. Returns true if the contact exists and was removed successfully, or false if the contact doesn't exists.        -  findContact(), has one parameter of type Contact and returns an int. The returned value is it's position in the ArrayList, it will either be -1 (doesn't exists) or a value greater than or equal to 0 (does exists).        -  findContact(), same as above, only it has one parameter of type String.        -  queryContact(), has one parameter of type String and returns a Contact. Use the String to search for the name and then return the Contact. Return null otherwise.        -  printContacts(), has no parameters and doesn't return anything. Print the contacts in the following format:Contact List:1. Bob -> 314159262. Alice -> 161803393. Tom -> 112358134. Jane -> 235711132. Implement the Contact class with the following attributes:    -  Two fields, both String, one called name and the other phoneNumber.    -  A constructor that takes two Strings, and initialises name and phoneNumber.    -  And Three methods, they are:        -  getName(), getter for name.        -  getPhoneNumber(), getter for phoneNumber.        -  createContact(), has two parameters of type String (the persons name and phone number) and returns an instance of Contact. This is the only method that is static.TIP:  In MobilePhone, use findContact() in the other methods (except printContacts()) to check if it exists before proceeding.TIP:  Two Contact objects are equal if they have the same name.TIP:  Be extremely careful about spaces in the printed message.NOTE:  All fields are private.NOTE:  Constructors should be defined as public.NOTE:  All methods should be defined as public (except for the two findContact() methods which are private).NOTE:  Do not add a main method to the solution code.NOTE: Classes that are not in the java.lang package should be manually imported.NOTE:  If you get an error from the Evaluate class, it's most likely the constructor. Check if you've added a constructor or if the constructor has the right arguments.

After using the telephone you have built, fill in the blanks to describe how sound travels from the speaker's mouth to the listener's ear.  are transferred form the speaker’s mouthto the inside his/her cupthen to the then to the  in the string then to the cup of the then to the air inside the cupand finally to the of the listener.