MMS Headers all have bit 8 set so in fact the following data should be added with 80h i.e. 0x01 -> 0x81

Bcc				0x01		
Cc				0x02		
X-MMs-Content-Location		0x03		
Content-Type			0x04		
Date				0x05		
X-MMs-Delivery-Report		0x06		
X-Mms-Delivery-Time		0x07		
X-Mms-Expiry			0x08		
From				0x09		
X-Mms-Message-Class		0x0A		
Message-ID			0x0B		
X-Mms-Message-Type		0x0C		
X-Mms-MMS-Version		0x0D		
X-Mms-Message-Size		0x0E		
X-Mms-Priority			0x0F		
X-Mms-Read-Report		0x10		
X-Mms-Report-Allowed		0x11		
X-Mms-Response-Status		0x12		
X-Mms-Response-Text		0x13		
X-Mms-Sender-Visibility		0x14		
X-Mms-Status			0x15		
Subject				0x16		
To				0x17		
X-Mms-Transaction-Id		0x18		
X-Mms-Retrieve-Status		0x19		
X-Mms-Retrieve-Text		0x1A		
X-Mms-Read-Status		0x1B		
X-Mms-Reply-Charging		0x1C		
X-Mms-Reply-Charging-Deadline	0x1D		
X-Mms-Reply-Charging-ID		0x1E		
X-Mms-Charging-Size		0x1F		
X-Mms-Previously-Sent-By	0x20		
X-Mms-Previously-Sent-Date	0x21		
X-Mms-Store			0x22		
X-Mms-MM-State			0x23		
X-Mms-MM-Flags			0x24		
X-Mms-Store-Status		0x25		
X-Mms-Store-Status-Text		0x26		
X-Mms-Stored			0x27		
X-Mms-Attributes		0x28		
X-Mms-Totals			0x29		
X-Mms-Mbox-Totals		0x2A		
X-Mms-Quotas			0x2B		
X-Mms-Mbox-Quotas		0x2C		
X-Mms-Message-Count		0x2D		
Content				0x2E		
X-Mms-Start			0x2F		
Additional-headers		0x30		
X-Mms-Distribution-Indicator	0x31		
X-Mms-Element-Descriptor	0x32		
X-Mms-Limit			0x33		
X-Mms-Recommended-Retrieval-Mode	0x34		
X-Mms-Recommended-Retrieval-Mode-Text	0x35	
X-Mms-Status-Text		0x36		
X-Mms-Applic-ID			0x37		
X-Mms-Reply-Applic-ID		0x38		
X-Mms-Aux-Applic-Info		0x39		
X-Mms-Content-Class		0x3A		
X-Mms-DRM-Content		0x3B		
X-Mms-Adaptation-Allowed	0x3C		
X-Mms-Replace-ID		0x3D		
X-Mms-Cancel-ID			0x3E		
X-Mms-Cancel-Status		0x3F