I haven't got the heart! Poor sods are only trying to make a living, but they can be so annoying. Part of their training should be to accept "Thank you, I'm not interested" as the end of the conversation. Anyway, I would never buy anything from anybody who hides their number when they call, as they invariably do. What else are they hiding?
On one sales course I attended it was insisted that 16 "No's" in a row means No!..........
In regards your initial question, just say,"no thanks,have a good shift mate,"then hang up on them.
Sales is something I discovered a skill in (2/3 average on F2F sales) that doesnt sit well with my laid back,mweh,save yer money this stuff is crap,nature so its what I get into when I need quick cash and dont mind going without a good nights sleep for a few months ;) But got to agree,of all the types of sales, telesales is the biggest nightmare, I normally last in offices untill the weather gets nice again,get me out there working 110 hour weeks getting to nosey around peoples houses any day over being sat in a airconditioned sales room ;)
ps, yeah, that wasnt my CV btw :)
pps, a small retainer is always a good thing,makes your sales staff realise they are actually valued,doesnt have to be much,£150 a week say + commision, though I suppose with that Im covering fuel costs,so,as this is a home based job I'll just shut up now.... :)