Which of the following is not a service offered by SS7?

Alternate billing services
Touchstar
400 services
800 services

The correct answer is: C. 400 services.

SS7, or Signaling System 7, is a set of protocols used to control telephone calls and other telecommunications services. It is a standard protocol that is used by all major telecommunications companies around the world.

SS7 provides a number of services, including:

  • Call routing: SS7 is used to route calls between different telephone networks.
  • Call setup: SS7 is used to set up calls between different telephones.
  • Call termination: SS7 is used to terminate calls between different telephones.
  • Authentication: SS7 is used to authenticate users and prevent unauthorized access to telecommunications networks.
  • Billing: SS7 is used to bill users for telecommunications services.

400 services are a type of telecommunications service that is offered by some telephone companies. 400 services are typically used for customer service and support. They allow customers to call a toll-free number to reach a customer service representative.

400 services are not a service offered by SS7. SS7 is a standard protocol that is used by all major telecommunications companies around the world. 400 services are a type of telecommunications service that is offered by some telephone companies.