Nokia 30 GSM Connectivity Terminal At Command Manual page 80

Text mode:
The +CMGC command sends a command message from a TE to the network (SMS-
COMMAND). The entering of text (GSM 03.40 TP-Command-Data) is carried out as
specified in the command Send Message +CMGS, but the format is fixed as a sequence of
two IRA character-long hexadecimal numbers which the Nokia 30 converts into 8-bit octets.
The message reference value <mr> is returned to the TE when a message has been
successfully delivered. Optionally (when +CSMS <service> value is 1 and network supports),
<scts> is returned. Values can be used to identify a message upon an unsolicited delivery
status report result code.
PDU mode:
The +CMGC command sends a command message from a TE to the network (SMS-
COMMAND). The message reference value <mr> is returned to the TE upon the successful
delivery of a message. Optionally (when +CSMS <service> value is 1 and the network
supports it), <ackpdu> is returned. Values can be used to identify a message upon an
unsolicited delivery status report result code.
Text/PDU entering is as specified in ETSI GSM 07.05. If the SMSC address is not
set/restored during the current session (i.e. +CSCA? returns +CSCA: "",129) it must be
automatically read from the SIM/ME (location 1). In PDU mode, all kinds of GSM 03.40 MO
TPDUs can be sent with this command (operation equals +CMGS).
Defined values
<fo> First octet of GSM 03.40 SMS-COMMAND in integer format
<ct> GSM 03.40 TP-Command-Type in integer format
<pid> GSM 03.40 TP-Protocol-Identifier in integer format
<mn> GSM 03.40 TP-Message-Number in integer format
<da> GSM 03.40 TP-Destination-Address Address-Value field in string format; the
type of address is given by <tooda>/<toda>
<toda> GSM 04.11 TP-Destination-Address Type-of-Address octet in integer format
129
145
<mr> GSM 03.40 TP-Message-Reference in integer format
<scts> GSM 03.40 TP-Service-Centre-Time-Stamp in time-string format
<length> In the PDU mode (+CMGF=0), the length of the actual TP data unit in octets
(i.e. the RP layer SMSC address octets are not counted in the length)
unknown/telephony
internal/telephony
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