This parameter is configurable in X-Header profile to enter the default values in ACM.
On SBC main screen, go to Configuration > Profile Management > Category: Signaling Profiles > X-Header-default-value > X-Isup Mtype-ACM.
Select the desired XHeader Profile from the drop-down list to view its respective X-Isup Mtype-ACM parameters.
The X-Isup Mtype-ACM window is displayed.
The following fields are displayed:
Make the required changes and click Save at the right hand bottom of the panel to save the changes made.