As per our requirement, when A party send a cancel to B party we do not want "200 cancelling" message from Kamailio.We try to find any high-level flag to disable it. but could not able to find. Can you please help us on how to achieve this.

A Party         Kamailio                 B Party
---------------->INVITE------------------------>
<---------180 Ringing<------------------------
------------>CANCEL-------------------------->
<---------200 canceling     [we want to suppress this message and do not want kamialio to inform A party about progress status of cancel]
<------------OK-----------------------------------