We put a lot of effort into trying to get people not to leave messages on the old house phone (long story, there was some reason I forget why we couldn't turn the voicemail off). Messages with words in don't work. Even if you make them 10 minutes long and full of "Please do not leave voicemail here, we won't hear it" repeatedly, people will sit through it and then leave a message. We eventually settled on something that sounded like a very noisy modem, which mostly worked. I have no idea whether people would recognise modem noises these days though, especially if this is for a mobile number...
Now that we have gone over the basic do’s and don’ts of the office voicemail greeting, let’s check out some examples! 15 Professional Voicemail Greeting Samples 1. Company Voicemail Greeting Samples “Hello. Thank you for calling [Company Name]. All of our representatives are currently assisting other callers.

Don’t include the date unless it’s completely necessary. 16 of the messages I heard last month had the wrong date—one of the messages had a date over 2 months old!
Users often don’t invest enough time into their messages, resulting in incomplete, unprofessional, or otherwise under-whelming greetings. Sure, crafting a greeting doesn’t sound all that complicated; however, there are a number of pitfalls users can fall into—i.e. informality, terseness, sincerity, lack of direction, and more. While none of these sound too catastrophic, they are often interrelated. As such, they tend to worsen any problem. For example, humor can cause informality, worsen ambiguity, and weaken sincerity. That being said, users should strive to avoid ALL these pitfalls.