Obile – Siemens MC55 User Manual

Page 242

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MC55 AT Command Set

9.13 AT+CUSD

s

m

obile

MC55_ATC_V01.05

Page 242 of 469

2/10/04

Confidential / Released

is sent to the network. The response USSD string from the network is returned in a subsequent unsolicited result
code "

+CUSD

"

The interaction of this command with other commands based on other GSM supplementary services is described
in the GSM standard.

Parameter Description

0

(&F)

Disable the result code presentation in the TA

1

Enable the result code presentation in the TA

2

Cancel session (not applicable to read command response)

String type USSD-string (when

<str>

parameter is not given, network is not interrogated).

If

<dcs>

indicates that GSM 03.38 default alphabet is used TA converts GSM alphabet into current TE character

set according to rules of GSM 07.05 Annex A.

GSM 03.38 Cell Broadcast Data Coding Scheme in integer format (default 15)

0

No further user action required (network initiated USSD-Notify, or no further
information needed after mobile initiated operation)

1

Further user action required (network initiated USSD-Request, or further infor-
mation needed after mobile initiated operation).
If

<m>

=1, then the URC ends with ">" to prompt the user for input. The user

action is finished with

<CTRL-Z>

or aborted with

<ESC>

.

2

USSD terminated by network.

Notes

• For the write command, only

<dcs>

= 15 is supported.

• When a USSD string is sent via

ATD

, a "

AT+CUSD

=1" is executed implicitly.

<n>

(num)

<str>

(str)

<dcs>

(num)

<m>

(num)

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