ASU Major Ims Network Components Questions

Assignment: VoLTE & VoWiFi

Please answer the questions below:

1. Name the major IMS network components and give a short description of each function.

2. How is it ensured that a SIP-message can only be sent by an authenticated device?

3. What are “Preconditions” and how does the mechanism work?

4. Why are Asserted Identities required?

5. Why is header compression beneficial in VoLTE?

6. How are call forwarding settings managed in VoLTE?

7. How are emergency calls handled in VoLTE networks?

8. Describe the main steps in handing over an ongoing VoLTE call to WiFi.

9. Describe the difference between VoWiFi cellular preferred and WiFi preferred.

10. Why is “floor control” required in Mission Critical Push to Talk Communication?