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 G.711
Remote user's phone only supports G.729
The remote end user receives an error message on the phone: 'Cannot Complete Conference Call.' What is the cause of the issue?
Click on the arrows to vote for the correct answer
A. B. C. D.D.
The issue is caused by a codec mismatch between the conference bridge and the remote user's phone. The conference bridge is configured to support G.711 codec, while the remote user's phone only supports G.729 codec. As a result, the remote user receives an error message on the phone: Cannot Complete Conference Call.
In order to resolve this issue, a transcoder resource is required. A transcoder is a device that can convert the codec used in a call from one type to another type. In this case, a transcoder resource is needed to convert the G.729 codec used by the remote user's phone to the G.711 codec used by the conference bridge. This allows the remote user to participate in the conference call.
Option A, a software conference bridge not being assigned, is not the cause of the issue as the error message is related to a codec mismatch, not a missing conference bridge.
Option B, the remote phone not having the conference feature assigned, is not the cause of the issue as the error message suggests that the call cannot be completed due to a codec mismatch, not a missing conference feature.
Option C, a missing Media Termination Point (MTP), is not the cause of the issue as an MTP is only needed when there is a codec mismatch between endpoints in a call and it is not able to transcode the codec. However, in this case, the issue is caused by a codec mismatch between the conference bridge and the remote user's phone, not between endpoints in the call.
Therefore, option D, the transcoder resource being missing, is the correct answer.