Recommended usage:
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Warm dialing where you want a zero Abandonment Rate and the agent doesn't need to preview the lead.
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Fast Preview Mode is much slower than Pool or Predictive dialing.
Issues:
Fast Preview mode does not provide the agent the ability to Preview a lead before the lead is dialed.
Fast Preview is slower than any of the Pooled or Predictive modes as it only dials a single no. when an Agent is available.
Overview:
Fast Preview is best used to call customers that you have an existing relationship with and you don't want to risk souring the relationship by having Abandoned calls (i.e. customers answers but no agent is available).
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