The DCD signal is in the ON state as PDU is given.

The echoing of given characters back from the TA is controlled by V.25ter echo command E.

The PDU shall be hexadecimal format (similarly as specified for <pdu>) and given in one line; ME/TA converts this coding into the actual octets of PDU.

When the length octet of the SMSC address (given in the <pdu>) equals zero, the SMSC address set with command Service Centre Address +CSCA is used.

Sending can be cancelled by giving <ESC> character (IRA 27). <ctrl-Z> (IRA 26) must be used to indicate the ending of PDU

<mr>

Description

 

 

Integer type

GSM 03.40 TP-Message-Reference in integer format

 

 

•_

 

<length>

Description

 

 

 

 

Integer type

Value indicating in 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)

 

 

 

•_

 

 

 

 

 

<ackpdu>

Description

 

 

 

 

...

GSM 03.40 RP-User-Data element of RP-ACK PDU;

 

 

format is same as for <pdu> in case of SMS, but without

 

 

GSM 04.11 SC address field and parameter shall be

 

 

bounded by double quote characters like a normal string

 

 

type parameter

•_.

Text Mode

Description

Command

Possible Responses

Send message

AT+CMGS=<da>

 

[,<toda>] <CR>

 

Text is entered<ctrl-

 

Z/ESC>

Show if the command is AT+CMGS=? supported

•_ +CMGS: <mr>[,<scts>]

•_ +CMS ERROR: <err>

•_ OK

•_ ERROR

•_ OK

•_ ERROR

Owner’s Manual

Rev 1.0

Page 196 of 196