It makes sense to have an after-hours / weekend voicemail greeting for important teams at your business so that your clients feel confident that they will be taken care of. You may also suggest alternate resources like a help forum, knowledge base, or online chat to support customers while closed, if available.
Try to avoid casual salutations like, “Hi” or “Hey” if this is your first time calling someone. Your introduction should be one or two sentences tops. From there you can move on to the body.

Finally, the length of your sales voicemails is important. Research suggests that messages under 30 seconds long perform best. This should give you enough time to convey important information without wasting any of your prospect's valuable time.
Android phones can access voicemail by holding down the 1 key on the dial pad until the phone dials your 10-digit phone number. You will automatically connect to your mailbox and be prompted to enter your temporary password; this password is the last 4 digits of your phone number followed by the # key. How do I check my voice mail? To call your voicemail on an Android phone, simply open your phone’s dial pad and hold your finger down on the “1” key. You can also call your voicemail from a different phone by calling your own number and tapping the pound key. How do you listen to voicemail on this phone? Turn on your phone and open the Phone app. Call your voicemail system. Enter your voicemail system passcode. Tap the key that allows you to check messages. Listen to each message and tap the corresponding key to replay it, delete it, or save it. How do I get my voice messages from this phone?