Virtual Office Pro calls out to meeting participants' phone lines, conveniently connecting them to the voice conference. You can share specific application windows or your entire screen with the group, but you can't upload and share files within the browser interface. This omission sinks conferences for those who want to publish a PowerPoint deck, PDF, or other file, instead of juggling those native applications.

Other interface and design issues can make the service feel untested. Connect on a laptop with a mid-sized screen height--800 pixels for example--and the bottom of the interface might get cut off.

You can send incoming calls to the various Virtual Office Pro options or a "real" phone, but those settings don't include advanced options, such as ringing certain phones after business hours.

All together, Virtual Office Pro's unlimited long-distance calling could save your business money, but its other features are mediocre. You can't set up advanced call routing functions, and the online conferencing tool omits important options that many businesses need.