Wikipedia's editors have done a thorough job explaining the differences between a virtual office and an executive suite. The services provided by each show a stark contrast, especially in the area of communications.
High-end virtual office companies offer services like "Remote Receptionists". Instead of one harried/disinterested receptionist, they offer a team of workers in an office environment working remotely, using high-tech Computer Telephone Integration software, to function at a high level.
Remote Receptionists are a far cry from an "answering service". Answering services are known for their cacophony of interference, high-turnover in personnel, language barriers and impersonal staff.
For more information on how businesses decide which fit is right for them, Wiki highlights industries that typically choose the services of a virtual office over an executive suite here.
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