MTP 2 -> MTP 3
Data confirmation is also sent in response to an application status request to retrieve unacknowledged messages. The status field indicates that this message is unacknowledged. It also indicates whether more unacknowledged messages are coming or whether this is the last. One data confirmation is returned for each unacknowledged message.
The following table lists the message parameters:
Type |
Field |
Description |
U8 |
Message Type |
0x15 |
S16 |
Service User ID |
Application reference number for the link from Bind request. |
U8 |
Status |
Status of the confirmation. Valid values are: 0 = Unacknowledged message, more to follow. 1 = Unacknowledged message, last one. |
Variable |
Data |
The contents of the unacknowledged message. |