The Short Message Service (SMS) and Multimedia Messaging Service (MMS) Object Protocol enables clients to create, modify, and delete Short Message Service (SMS) and Multimedia Messaging Service (MMS) messages.
This protocol extends the Message and Attachment Object Protocol, as described in [MS-OXCMSG].
Sections 1.8, 2, and 3 of this specification are normative and can contain the terms MAY, SHOULD, MUST, MUST NOT, and SHOULD NOT as defined in [RFC2119]. Sections 1.5 and 1.9 are also normative but does not contain those terms. All other sections and examples in this specification are informative.