SIP Session Management

Question 1

Which SIP method is used to establish a call between two endpoints?

Accepted Answer

INVITE

Answer

BYE

Answer

CANCEL

Answer

UPDATE

Question 2

What SIP method is typically used to modify an existing session, such as changing media parameters?

Accepted Answer

RE-INVITE

Answer

BYE

Answer

OPTIONS

Answer

ACK

Question 3

Which SIP method is used to end an established call?

Accepted Answer

BYE

Answer

INVITE

Answer

OPTIONS

Answer

CANCEL

Question 4

What protocol is commonly used in conjunction with SIP to describe multimedia session parameters?

Accepted Answer

SDP (Session Description Protocol)

Answer

HTTP

Answer

RTP (Real-time Transport Protocol)

Answer

ICMP (Internet Control Message Protocol)

Question 5

What is a SIP Dialog?

Accepted Answer

A call leg maintained between two endpoints, which provides state and context for the call

Answer

A SIP message exchanged between two endpoints

Answer

A method used to authenticate SIP requests

Answer

A type of SIP header used to route calls