Go to "Reports -> Custom Reports".
Click on the "+".
Make sure that "Summary" is selected.
Deselect "Include Incoming calls" if you only want outgoing calls.
Choose the date period you wish under "Select records".
If you use "Between dates", enter the dates in the "Between dates" section.
Choose "No breaks" under "Detailed report format".
Choose "When (Detail only)" under "Order by".
Enter "0" for "Maximum records".
In the "Field Selection" section, choose "Number" for the first box, "Like"
for the second box.
For the third box, enter a "%" (percentage) sign, then the number, and another
"%" sign. Our number is 0215924033. Entering just "%5924033%" will allow it
to match 5924033, 0215924033, or 59240333 (misdial). The percentage signs allow
you to type in part of the number and still get a match.
Click on the tick to save the report.