Which SDP parameter causes this issue?

exams 350-801 350-801 exam 0 Comments

Refer to the exhibit.

A call is failing to establish between two SIP Devices. The Called device answer with this SDP.

Which SDP parameter causes this issue?
A . The RTP port is set to 0.
B . The payload for
C . 711ulaw must be 18.
D . The media stream is set to sendonly.
E . The calling device did not offer a ptime value.

Answer: A