C55/C55i AT COMMAND SET Description Preliminary - Falcom

C55/C55I AT COMMAND SET VERSION 1.00
13 Phone book Commands
The AT commands described in this chapter allow the external application
to access the phone books located in the C55's memory or on the attached
Subscriber Identity Modul (SIM).
13.1 Sort Order for Phone books
Due to the support of UCS2 for the part of phone book entries, the
sort order for phone book records follows the algorithm published as
Unicode Technical Standard #10, "Unicode Collation Algorithm". A
memory-optimized version of the proposed collation tables "[AllKeys]"
from Unicode Technical Standard #10 is used in order to determine
collation weights for code points between 0000 and 06FF, and composed
keys are used for code points from ranges 0700 to 33FF, A000 to D7FF
and E000 to FFFD. Code Points not referenced in these tables will be
assigned a default collation weight with their Unicode value as level 1
weight. Decomposition is not supported.
Phone book entries whose names contain only characters from the
GSM07.07 default alphabet are converted internally into their UCS2
equivalents in order to achieve consistent sorting results.
For the user, this means that:
• Punctuation marks and other non-alphabetical characters from the
common latin-based character sets, and from the standard GSM
character set, will be sorted before any alphabetical characters. The
ordering in which these marks appear as compared to other nonalphabetical
characters from the same group is determined by their
collation weights and does not reflect their code values in the
UCS2 or GSM alphabet tables above. Please refer to
www.unicode.org for detail.
• Alphabetical characters from the common latin-based character
sets, and from the standard GSM character set, will be sorted
according to their underlying base characters, plus the collation
weights of their accent signs.
• Only collation levels 1 and 2 are regarded, so sorting is not casesensitive.
Example: the european letters "A" (GSM 0EH, UCS2 00C5h), "ae" (GSM
1DH, UCS2 00E6h), "c" (GSM09h, UCS2 00E7h), "a" (GSM 61H, UCS2
0061 h ) and "b" (GSM 62H, UCS2 0062h) will be sorted in order "a",
"A", "as" "b","c" although their numerical values in GSM and UCS2
suggest a different ordering.
Unicode Technical Standard #10,
"Unicode C ollation Algorithm"
13.2 AT+CPBR Read from Phone book
This command serves to read one or more entries from the phone book
selected with AT command AT+CPBS. It can be used only after the phone
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