However, while understanding the basics of VoIP and SIP is important, setting one of these systems up will require some general network skills, too. For the best voice quality, your network will need to meet certain minimums levels of throughput for upstream and downstream data. In addition, you'll also need to meet a minimum latency number (that is, the time between when a signal leaves a remote computer and when your system receives it), typically measured in milliseconds. You'll also need a business-grade connection to the Internet if that's where your call traffic is going to go.
What's the first thing you do when you get to the office every morning? I bet you rush in and just can't wait to check your voicemail.

Your listeners may not be able to see your happy and friendly face, but they’ll hear the cheeriness in your voice. This makes a significant impact in creating rapport with your listeners. Sounding professional in your business voicemails should never be at the expense of being friendly. After all, no one would ever want to listen to someone on the phone who sounds rushed or is dry and grumpy.
Once you identify your pain points, you’ll find it much easier to identify what instructions need to be present in your voicemail greetings. We hinted towards these before, so let’s just break down another example. If you want your customers to leave a voicemail, but you also want them to visit your website for additional help regarding their issue, give them a clear call to action, like a website address they can easily write down while they listen to your message.