The two parties have been talking for weeks over Serie A's proposals to force unwanted players to train away from the first team or accept a transfer, conditions the footballers' union cannot agree to.
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"The players' association... will wait until November 30 to announce the date of a matchday strike," the union said in a statement.
"The logic of the strike makes no sense," Serie A president Maurizio Beretta told a hastily arranged news conference.
"I think we would have the time and the means to reach a full agreement before November 30. However, you can't talk about some points and not others."
The Serie A clubs' stance has angered the already furious union, which believes it has made concessions in the collective contract which will define the basic rights of players.
"I have faith that before November 30 we can arrive at an agreement on the collective contract. Good sense always prevails," CONI president Gianni Petrucci told reporters.
Not all players are behind the latest move to strike but the recent experience of those left out of the first team may have strengthened the union's hand.
Juventus duo Fabio Grosso and Hasan Salihamidzic were dropped from the first team after failing to agree moves away in August but Juve's injuries have been so bad that the pair have returned to action, leaving the club slightly red-faced.
