Avaya Call Handling Sign in to Avaya Cloud Office - service.cloudoffice.avaya.com Click Sign in with Google Choose your ISS Email Address The first time you sign in, it may ask you for permissions to use your Google Account. Click Allow on these options. Click Settings at the top. Click Call Handling Here you can setup how many rings you want your phone to do before it goes to voicemail. Make sure you have your calls set to go to voicemail during work hours unless you want to forward your calls to someone else.