If you had a generic voicemail greeting and recorded a personalized voicemail greeting you can change to the custom voicemail greeting by saving your custom voicemail recording. You should first listen to your recording by playing it from the menu and can then choose to keep the custom greeting or revert to the default one. Don’t forget to confirm your changes by tapping “Save” when done.
A general voicemail greeting is what callers will be greeted with if you are unable to answer the phone at work. It is the everyday greeting, used as the default, unless you have set up a temporary greeting, such as an away message while you're on vacation, or a special message during a holiday.

Step 4. You will be shown a list of voicemails you can use. Choose one by tapping the down arrow, and then tap “Set as active.”
3.) Добро пожаловать в «Вася Пупкин и Ко». В настоящее время мы не можем ответить на ваш звонок лично, или вы звоните нам в не рабочее время. Пожалуйста, оставьте нам сообщение с вашим именем и номером телефона – мы вам перезвоним как можно скорее. Спасибо и до свидания.