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Custom character set +wccs – Multi-Tech Systems MMCModem GPRS (MTMMC-G) User Manual

Page 124

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Chapter 13 – Specific AT Commands

Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I)

124

Custom Character Set +WCCS

Description:

This command allows you to edit and display the custom character set tables. These tables are used by
the “CUSTOM” mode of +CSCS and the +WPCS commands. In this CUSTOM mode, when you enter a
string, it is converted into the GSM alphabet using the Custom To GSM table. In a similar way, when the
user requests a string display, the string is converted from the GSM alphabet using the Custom
alphabet and Custom alphabet extension tables.

In edition mode, the session is terminated by or aborted by . Only hexadecimal
characters (‘0’…’9’, ‘A’…’F’) can be used. The number of characters entered must equal the edition
range requested; otherwise, the command will return “+CME ERROR: 24”.

The default Custome alphabet extension table contains the following extended characters:

| ^

ε

{ } [ ] ~ \

Values:

0

Display the table

1

Edit the table

0

Custom to GSM conversion table (default table is PCCP437 to GSM table)

1

Custom alphabet table (default table is GSM 7 bit default alphabet)

2

Custom alphabet extension table (default table is GSM 7 bit default alphabet extended)

,

Character range to display/edit

0…127 for table 1 and 2
0…255 for Custom to GSM conversion table
Notes:

and are not ASCII codes; they stand for the range of a given character in

the tables.

If only is provided, only this char is displayed/edited

See Appendix C for informative examples of the use of these characters.

Syntax: Command

syntax:

AT+WCCS=,

,[,]

Command

Possible responses

AT+WCCS=0,0,120,130
Note: Display from character 120 to character 130 of the
Custom to GSM conversion table

+WCCS: 11,
78797A2020202020097E05
OK
Note: 11 characters displayed

AT+WCCS=1,0,115
20
Note: Edit character 115 of the Custom to GSM conversion
table

OK
Note: Edition successful

AT+WCCS=1,1,0,4
40A324A5E8
Note: Edit the 5 first characters of the GSM to Custom
conversion table

OK
Note: Edition successful

AT+WCCS=0,2,20
Note: Display character 20 of the Custom alphabet extension
table

+WCCS: 1,5E
OK

AT+WCCS=1,1,200
Note: Edit character 200 of GSM to Custom conversion table

+CME ERROR: 3
Note: Index out of range

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