6.) Добро пожаловать в «Вася Пупкин и Ко». Проводятся профилактические работы, и мы не можем принять ваш звонок в данный момент. Вы можете связаться с нами по электронной почте [email protected]. Наши сотрудники ответят на ваше письмо как можно скорее. Приносим извинения за временные неудобства! Спасибо за понимание.
There's no single best way to craft an after hours greeting. The most important point is that you equip your customers with what they need to know, and give them an avenue to contact you, whether that's through voicemail, email, or other channels.

Hello, you have reached the food delivery services of X. I am currently speaking to a customer and will not be able to take your call now. If you want some urgent delivery of food items, you can call our other number Y and place your order. Otherwise, kindly leave your details like your name, contact number and your order details so that I can get back to you for confirmation. Thanks for your cooperation.
Your voicemail needs to have relevant information such as your name, who the prospects are connecting to, the department you work in, why your not available to assist your prospects, when you will call them and related information, this is what the prospects would prefer hearing instead of dragging the voicemail messages speaking about your brand and more.