If done tastefully, you can promote your products or services on your voicemail greeting without sounding pushy. In fact, it’s a great way to keep customers up-to-date on company events, sales, and other news. Be sure to keep it short and have fun with it.
Doing this helps you understand what the prospects are looking for and what they are expecting from you which will in turn help you to cater to them better.

A Ring Groups or Hunt Groups feature lets calls ring multiple people inside a group. The GIF shown here demonstrates how calls can ring one user before ringing a different user in the same group.
However, a little further down the road is ubiquitous 5G. When that happens several VoIP vendors seem bent on simply connecting their service to 5G so workers will be able to access their business VoIP service wherever they are and across any device as long as it's 5G compatible. While some vendors do this with current mobile technology, the latency limits around 4G calling often make it a sub-optimal experience, not just for video and collaboration, but often simple voice traffic, too. 5G is the first service that promises the bandwidth necessary to make true mobile UC a reality.