The SIP protocol is a ( ) protocol.
Options:
Application layer
Data Link Layer
Network layer
Transport Layer
Answer:
A meeting can support up to ( ) group multi-screen.
1
12
24
96
The GK side hangs up the call in case of ( ).
Billing failed
Verbal capacity negotiation failed
Network reasons caused IRR to time out
The interface hangs up
Common SIP calls the SDP negotiation process includes (). (3 answers).
Invite with SDP, and then 2XX responds with SDP
Invite with SDP, reliable 1XX response with SDP, and final 2XX response without SDP
None with SDP
Invite/Relnvite and Final Response (2XX) both come with SDP's processing
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