Hi,
Which version of RM you have?
Log on softex website & you will get some tips regarding your question...They have a web based course also...
Time zones are used if you have wide choice of operators & you want to implement LCR based on Time zones...
Bands: You can diffrentiate destinations creating various groups of countries & applying costs...This way you don't need to apply call rate to each ib=ndividual country or destination but you can have 6-8 bands/zones & apply group rates.
I can forward you a manual based on your version but only after one month ...Post your email if you are intrested..
Cheers,
""The truth about action must be known and the truth of inaction also must be known; even so the truth about prohibited action must be known. For mysterious are the ways of action""