VoLTE Signaling Quiz

Which of the following are dedicated bearers for VoLTE services?

Which of the following factors affect the VoLTE experience delay?

• Air interface quality

• Transmission network delay

• DNS interaction delay

• RTP delay

The voice solutions of the LTE network include CSFB, dual standby, VoLTE, and ___ voice services.

VoLTE registration includes EPS registration and IMS registration.

• True

• False

In VoLTE call drops, which NE triggered call drops are counted as IMS call drops?

• PCRF

• SBC

• CSCF

• SGW

When a VoLTE subscriber calls a CS subscriber, the VoLTE subscriber can use AMR-WB or AMR-NB voice coding.

• True

• False

When a VoLTE subscriber calls a VoLTE subscriber or a VoLTE subscriber calls a CS subscriber, the voice quality of the VoLTE subscriber is the same.

• True

• False

Which of the following is the VoLTE service connection flag?

• 200(INVITE)

• 180

• 183

• ACK

Which message is used to calculate call connection delay when no 180 message is received?

• 183

• ACK

• PRACK

• 200(INVITE)

IMS was defined in 3GPP R5 release, as a subsystem of PS domain.

• True

• False