You are living in 2020 and you do realize that your prospects can come to you anytime, which means you need to be catering to them whenever that happens, at 3 am in the morning or even at 11 pm in the night.
@Fa5t3r - I would try a wide range of different tones when recording and play them back to see what goes over the best and what projects the image you want people to hear. Remember that some people may be going to hear this message over and over again depending on how often they have to call you so you want it to be very pleasant and not at all irritating.

Does your organization have a witty catchphrase or slogan? If so, use that to your advantage. Here is one that could be tailored towards a custom software company:
Virtual Receptionist allows all calls to be answered automatically - 24/7/365. Set up a customizable greetings that can route your callers to specific departments or extensions, and you can even give your Virtual Receptionist its own office hours with time-of-day scheduling, ensuring your customers hear the right greeting at the right time. Combine with other advanced features like rollover hunting and call queue with hold music that makes the wait enjoyable to ensure you never miss a call again.