Add sip header to CANCEL metthod which not work

Information system 
 - OS : Oracle linux 10
 - Freeswitch version: 1.10.12
Setup dialplan 

 
<img width="908" height="370" alt="Image" src="https://github.com/user-attachments/assets/d5a732df-e70e-40ce-8a60-a1429a6188b3" />

But  we can not add sip for CANCEL message. Please help us. Thank's you so much
    
  
