In practice, most businesses are simply handling this on a case-by-case basis since COVID is a temporary problem. Most home networks can handle the extra load as long as the employee makes sure that other latency-sensitive traffic, like gaming or video streaming, is kept to a minimum during the hours when they need to talk. If some home routers develop problems, IT staff simply build a queue and handle those one at a time. Sometimes they'll be able to access the router remotely with the employee's permission, sometimes they'll have to walk that employee through configuration steps to fix the problem. Sometimes the employee will just have to live with it unless the company springs for a new router or a higher bandwidth tier from the employee's ISP.
Keep it brief and concise Remember that customers and clients are also busy so make sure that you get the message across in the shortest possible time.Give options to get more details Creating a voicemail menu can be a timesaver for both you and your callers. ...Ask for detailed messages

A professional voicemail greeting should be no longer than 60 seconds. List the important information we've discussed above, provide alternative methods of communication and close with a thank you.
Voicemail plays an essential role in business operations. It captures all the missed communications from your customers so your employees and departments can respond to them quickly.