When your small business is closed, ensure that your callers know that! If appropriate, you might want to reiterate your business hours to manage callback expectations.
To change your night greeting on a Samsung OfficeServ 100, 500, 7100, 7200 and 7400 phone systems: Press the voicemail button Press * # 0000 Enter the system password Press 1 to edit system prompts Enter 1002 for the Night prompt Press 1 to listen to the current prompt. If this is not the prompt you want to record press * * If this is the correct prompt press 3 to discard the current recording and begin recording a new prompt. Press 2 when finished and review the greeting. If the greeting is acceptable press # to save Hang up

But now I'm going to go ahead and record. So press record sorry I missed your call. Please leave your voicemail after the beep and I'll call you back. Thank you. Press stop and now. I could press play and then if I don't like what I hear, I could press record one more time and when I'm satisfied, I could press save on the top right and it's going to save my greeting and that's all I have to do to set a new voicemail on my iPhone. You could always come back to this page. Press record one more time and replace your voicemail here. You're greeting here, and you should always use someone else's phone to call to see how it sounds from a different device.
You can also use a cloud service to backup everything you want to save from your phone or download an app made for saving messages, like VoicemailSaver. It costs $3.99 but it saves your messages, even if your phone is broken or stolen. For free options, try HulloMail or InstaVoice.