For developers: The list of x-zte-cause conditions resides in the at offsets 0x7D00 to 0x7EFF . Using a tool like QCN Viewer (for Qualcomm-based ZTEs) or BongoMod (for Spreadtrum), you can set x-zte-cause logging to "warning" instead of "fatal."
The header is typically inserted into SIP response messages (such as 403 Forbidden ) when a network element encounters an active error. x-zte-cause
