1. For computer data, packet switching is much more efficient than circuit switching . 2. Ever since Bell's day, phones have been based on circuit switching . 3. Conventional telephone networks are not based on best-effort communication, but on circuit switching . 4. This centralized network architecture is known as " circuit switching ." 5. This is similar to the advantage offered by packet switching over circuit switching . 6. Early telephone exchanges are a suitable example of circuit switching . 7. Currently, most wireless services rely on traditional circuit switching , which is not as efficient. 8. The DS0 circuit is the basic granularity of circuit switching in a telephone exchange. 9. Respect to Circuit switching the added time dimension introduces additional complexity to network management. 10. In circuit switching , each user typically gets a fixed share of the channel capacity.