Does something like this will do the job?

SELECT ncli, COUNT(ncli) AS telno FROM active ;
GROUP BY 1 INTO CURSOR telno

SELECT active
INDEX ON ncli TAG descncli DESCENDING

SELECT telno
SCAN
lnncli=telno.ncli
IF SEEK(lnncli,"active","descncli")
SELECT active
REPLACE active.count2 WITH telno.telno
REPLACE active.Count1 WITH telno.telno WHILE active.ncli=lnncli
ELSE
* should be imposible but...
ENDIF
SELECT telno
ENDSCAN