A virtual phone number is a telephone number without a phone line directly associated with it. Instead of being connected to one specific telephone line, a virtual number is programmed to forward incoming calls to one of the pre-set telephone lines that the client chooses, be it fixed, mobile or VoIP. Virtual phone numbers are also known as access numbers since they can work as a gateway between traditional calls and VoIP.
Softphones are at the heart of most UCaaS instances, and for many VoIP buyers, they're becoming the primary use case, sometimes completely obviating the need for physical handsets. Part of that is because they work as well on mobile phones and tablets as they do on desktop PCs or laptops. For workers in call centers, softphones are often the only tool because they're the front-end window to any CRM or help desk integration, which is nowadays a must-have for that job.

That’s why it’s important to clearly identify yourself and your company right out of the gate. And while it may be tempting to tack on your phone number, it’s best to leave it out. Restating your number takes up valuable time, and the idea here is to provide all the information your customers need—and nothing they don’t. Keep voicemail greeting up to date. Many voicemail greetings take the generic approach of stating the person reached, the company name, and a statement about being away from the desk or unable to answer. The problem here is the fact that your callers already know this.
And then there's everybody's favorite the "butt dial message." You see a missed call from that person and the voicemail icon. You think to yourself, "wow if they called me and left a message it must be important." Utter disappointment and frustration sink in when there is nothing but silence on the message.