Don’t include the date unless it’s completely necessary. 16 of the messages I heard last month had the wrong date—one of the messages had a date over 2 months old!
Businesses taking advantage of BYOD capabilities will usually set monitoring/security/data ownership and access policies to protect sensitive business data if/when these devices are taken out of the standard office environment.

Thanks for the great review on Phone.com, and wanted to let you know that we do offer a 30-day free trial, so that your readers can try the 40+ features that come standard with our service. Thanks again!
Most VoIP solutions will require stable and consistent internet connectivity at all your office locations where VoIP will be used. At the very least, your business phone system must have access to a business-class internet link, so discuss these needs with your company's internet service provider (ISP). This should be a dedicated link through a dedicated router if you expect your phone calls to sound as if they were coming from a business and not someone's home Skype connection. At a minimum, it's important to have a router that can create virtual LANs (VLANs) and also has the ability to encrypt your voice traffic. These days, you need end-to-end VoIP security for any call.