On the SBC main screen, go to Configuration > System Provisioning > Category: Trunk Provisioning > Ip Signaling Profile > Common Ip Attributes > Option Tag In Supported Header. The Option Tag in Supported Header window is displayed. On the Option Tag in Supported Header window, choose the Ip Signaling Profile as DEFAULT_SIP to view the Option Tags for SIP Trunk Group. Trunk Provisioning - Common Ip Attributes SIP Option Tag In Supported Header Parameter Descriptions: Parameter Description Specifies whether or not to suppress the Replace tag in the Supported Header. Make the required changes and click Save.To View and Edit Option Tag in Supported Header
DEFAULT_SIP
Suppress Replace Tag Flag