> 11.13 | AT+CGSMS Select service for MO SMS messages

> Syntax

> Test Command AT+CGSMS=?
> Response(s)
> +CGSMS: (list of supported <service>s)
> OK

> Read Command AT+CGSMS?
> Response(s)
> +CGSMS: <service>
> OK

> Write Command AT+CGSMS=[<service>]
> Response(s)
> OK
> ERROR
> +CME ERROR

> Reference(s) |  | PIN |  | ASC0 | ASC1 | USB | MUX1 | MUX2 | MUX3 |  |  | Charge | Q | Last
> GSM 07.07 |  | + |  | + | + | + | + | + | + |  |  | - | + | -

> Command Description
> The test command is used for requesting information on which services and service preferences can be set by using the AT+CGSMS write command
> The read command returns the currently selected service or service preference.
> The write command is used to specify the service or service preference that the MT will use to send MO SMS messages. If parameter <service> is not given, the current value remains unchanged.
> Parameter Description

> <service>(num)

> A numeric parameter which indicates the service or service preference to be used. Parameter is global for all interfaces and volatile.
> 0
> GPRS
> 1
> Circuit switched
> 2
> GPRS preferred (use circuit switched SMS transfer if GPRS SMS transfer is not possible, for example when the mobile is not GPRS attached or the network does not support SMS over GPRS)
> 3(&F)(P)
> Circuit switched preferred (use GPRS if circuit switched is not available)
> Note

> • | Sending SMS via GPRS is only possible when mobile is attached using AT+CGATT.