While there are endless ways you could say hello in a custom voicemail greeting, there are a few main generic lines that most of us have probably heard many times. Hello, you have reached the voicemail of (person of company) we are unable to get to the phone at the moment, please leave your name and number, and we will be happy to call you back soon. Thank you. Thank you for calling (company or person) we are not available or are on the other line with another customer, please hold and a representative will be with you shortly. Thank you for calling (company) if you know the extension of the person you are trying to reach dial it now, for billing press 1, for customer service press 2. or press 0 for the operator. Each professional custom voicemail is unique to the person or the company and can be structured any way you need it to represent your brand, business, or you as a person. There are options such as adding music that also make the voicemail greeting attractive. These are all ideas that we can work on in the free consultation I offer on all projects. It is best if you have the script on a word doc or notepad, and if you need help refining, I can help there also.
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.

Here is a great short example: Hello this is [first name] with {business name} in {city name} . I apologize I cannot answer the call at the moment, please leave me your name, number, and I will return the call as soon as get back to the phone. Here you have let the caller know that they have reached your business, and that you are sorry you can’t answer right away. It assures them that you are interested in their call, and that you will get back with them as soon as you can.
The right custom voicemail narration will welcome your corporate and business customers with a professional sound, and on-hold messages are a pleasure to listen to, set to the right voice and music. Make your brand and image stand out on the phone. No one likes to be on hold. Make that experience enjoyable for your customers and clients. I can voice custom messages, with music in the background, talking about your business or products while they wait. Reassure them that someone will be with them soon. When your business relies on calls coming in, having a professional voicemail message leaves a positive impression on customers and clients. A custom voicemail narration makes calling a cell phone feel just as legitimate as making a call to your office's front desk.