A user has reported that when trying to access Visual Voicemail the following error is received "Unable to open application. Please try again later. If it continues to fail contact your administrator". The collaboration engineer is working on the problem found on the following phone logs: CVMInstallerModule STATUS_install_cancelled STATUS_INSTALL)_ERROR [thread=installer MQThread][class=cip midp midletsuite installerModule][function=update status] Midlet install Canceled/ ERROR...visual - Voicemail - How can this issue be resolved? 

Answer options:

A. Replace the sever name with the server IP on service URL field
B. Eliminate the space in the service Name field
C. Configure DNS on phone configuration so it can resolve server name
D. Check the Enable checkbox on IP phone service configuration

B