Westermo GDW-11 - Manual (Page 101)

Short Messages commands 101 6615-2220
<pid>
Is used to indicate the higher layer protocol being used or indicates inter-working with
a certain type of telematic device. For example, 0x22 is for group 3 fax, 0x24 is for voice
telephone, 0x25 is for ERMES (European Radio Messaging System).
<dcs>
Is used to determine the way the information is encoded. Compressed text is not sup-
ported. Only GSM default alphabet, 8 bit data and UCS2 alphabet are supported.
Command example Possible responses Note
AT+CSMP? +CSMP: 0,0,0,0 No validity period
OK <dcs>= PCCP437 alphabet
(8 bits → 7 bits)
AT+CSMP=17,23,64,244 OK :<vp> = 23
(2 hours, relative format)
<dcs> = GSM 8 bits
alphabet