Are there marketing researches about effectiveness of different
welcome messages for phone call center with human operator (not
Interactve Voice Responder)? Is there at least one cse study in which
a change of the welcome message has guaranteed impovement in customer
satisfaction and / or work efficacy and effectiveness?

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Clarification of Question by papz-ga on 11 Jul 2006 07:25 PDT

I would like to find some evaluation about most effective welcome
messages in a Customer Service / CRM call center, when the human
operator answers at the phone to a client.
I would like to know if thee are studies on that topic, and especially:
- Is there a 'one best way', really experimented? or - at least - some
guide lines coming from real successs?
- Is there some case study, possibly comparing different welcome messages?
- Are there paper onthis topic?