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.
Using concise and simple words in your scripting helps ensure callers can comprehend what is being said. Although a complete on-hold message can be quite lengthy, it should include concise and to the point single messages. Aim to get each message across in around 35 to 40 words. Remember, what may read great in written word doesn't necessary sound great said out aloud.

What do you think of your voicemail greeting? Does it sound professional, or is it outdated? Even worse, is it a computerized voice with a default message? (Ew.)
4.) Уважаемый Абонент, вы набрали номер совместной практики xxx. В настоящее время все наши линии заняты. Пожалуйста, подождите. Вы будете подключены к следующему доступному ассистенту как можно скорее.