Which two SDP content headers can be found in a SIP INVITE message? (Choose two.)

Which two SDP content headers can be found in a SIP INVITE message? (Choose two.)
A . Expires
B . Contact
C . Connection Info
D . Media Attributes
E . Allow
F . CSeq

View Answer

Answer: C, D

Explanation:

Connection info is optional field in SDP whether Media attributes decide the codec and media type for that call.