An end user at a remote site is trying to initiate an Ad Hoc conference call to an end user at the main site. The conference bridge is configured to support one codec. The remote end user receives an error message on the phone
Cannot complete conference call
What is the cause of the issue?

A.	A media termination point is missing
B.	A software conference bridge is not assigned
C.	The remote phone does not have the conference feature assigned
D.	The transcoder resource is missing