Set Office Hours on Avaya Cloud Office 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  Click Work hours , and then click Edit Schedule Here you can specify a specific work hours schedule. Once you are finished setting your schedule, then click Save.