Put yourself in your listener’s shoes. Have you ever tried listening to someone on the phone who’s just talking so fast? Apart from not understanding what they have to say, you could also be tempted to just cut the call and drop it. Or, it becomes an inconvenience to your listeners for them to have to rewind your message frequently just to understand the message.
It gives off an aura of confidence and clarity. You will sound more authoritative and people are more likely to trust you. Edit these examples to suit your business. Populate these scripts with the relevant information about your business. Practice your script before going live and perfect your delivery. How to Reduce VoIP Latency: A Technical Guide to Testing Your Network

On the Phone tab, click the voicemail icon below the dial pad, and then click Change Greetings. Skype for Business calls your voicemail and guides you to record a personal greeting.
From the Skype for Business desktop app (if you are running Click-2-Run build C2R 8201.1002 or later), select Set Up Voice Mail. Change your Call Answering Rules You can change what options your callers have when they reach the voicemail service; get disconnected, hear your greeting, record a message, choose to be transferred to the number or user you select. Change your prompt language This is the prompt language that is played to callers. For list of supported languages, see Languages for voicemail greetings and messages from Skype for Business. Configure your Out of Office greeting This is the customized greeting message that is played to callers when your status is Out of Office. This option can be activated "Always," when you have an active "Auto Reply" in Outlook, or whenever you have an out-of-office calendar appointment.  Where you can get your voicemail messages from