SMS
3-122 AT Commands Reference Manual June 30, 2008
<TP-RA> Mandatory:
Recipient address formatted according to
the formatting rules of address fields.
2-12 BYTES
<TP-SCTS> Mandatory:
The TP-Service-Center-Time-Stamp field
is given in semi-octet representation, and
represents the local time as described in
GSM03.40
7 BYTE
<TP-DT> Mandatory:
Discharge-Time of <TP-ST>, is given in
semioctet representation, and represents
the local time as described in GSM03.40
7 BYTES
<TP-ST> Mandatory:
Status of the MO message 1 BYTE
<TP-PI> Optional:
Parameter indicating the presence of any
of the optional parameters which follow.
See Table 3-70.
1 BYTE
<TP-PID> Optional:
Protocol-Identifier. Values between
0-255.
1 BYTE
<TP-DCS> Optional:
Data Coding Scheme. Values between
0-255.
1 BYTE
<TP-UDL> Optional:
User data length 1 BYTE
<TP-UD> Optional:
User data 131 BYTES

Notes: •Any unused bits will be set to zero by the sending entity and will be ignored by the

receiving entity.
•The maximum guaranteed length of TP-UD is 131 octets. In order to achieve the maximum
octet of 143, the TP-RA field must have a length of two octets and TP-PID and TP-DCS
must not be present.
•TP-PI is Mandatory if any of the optional parameters following TP-PI is present,
otherwise optional.

Table 3-69: Layout of SMS-STATUS-REPORT in PDU Mode (according to

GSM03.40) (Cont.)

Reference Description Length