SIP Interoperability and Integration

Question 1

Which protocol is commonly used in conjunction with SIP to handle the actual transmission of voice and video media?

Accepted Answer

RTP (Real-time Transport Protocol)

Answer

HTTP

Answer

SMTP

Answer

SNMP

Question 2

Which technique is commonly used to enable SIP communication through Network Address Translation (NAT)?

Accepted Answer

SIP ALG (Application Layer Gateway)

Answer

SMTP

Answer

UDP

Answer

POP3

Question 3

How does SIP interoperability with H.323 typically get managed?

Accepted Answer

Through a protocol gateway that translates between SIP and H.323

Answer

By using a SIP proxy server

Answer

By direct communication between SIP and H.323 endpoints

Answer

By avoiding the use of H.323 in SIP environments

Question 4

Which SIP extension allows for the integration of presence information, showing the availability status of users?

Accepted Answer

SIP-PUBLISH

Answer

SIP-URI

Answer

SIP-PRIORITY

Answer

SIP-PRESENCE

Question 5

Which SIP extension supports the exchange of instant messages between users?

Accepted Answer

SIP-IM

Answer

SIP-INVITE

Answer

SIP-CALL

Answer

SIP-OPTIONS