Data Sheet
     Smart Machine Smart Decision 
SIM800 Series_AT Command Manual_V1.09  86  2015-08-03 
phone book memory storage selected with +CPBS. Entry fields written are 
phone number <number> (in the format <type>) and text <text> associated 
with the number. If those fields are omitted, phone book entry is deleted. If 
<index> is left out, but <number> is given, entry is written to the first free 
location in the phone book. 
OK 
x>[,<number>,[<t
ype>,[<text>]]] 
Parameters 
<nlength>  Max length of phone number 
<tlength>  Max length of text for number 
<index>  Location number 
<number> Phone number 
<type> Type of number;  
129 National number type 
145 International number type 
<text>  String type (string should be included in quotation marks): text 
for phone number in current TE character set specified by +CSCS. 
Note:  The following characters in <text> must be entered via the 
escape sequence: 
   GSM char.  Seq. Seq.(hex)   Note 
   \      \5C 5C 35 43   (backslash) 
   "      \22  5C 32 32   (string delimiter) 
   BSP     \08  5C 30 38   (backspace) 
   NULL    \00  5C 30 30   (GSM null) 
  ‘0’ (GSM null) may cause problems for application layer software 
when reading string lengths. 
Parameter Saving 
Mode 
NO_SAVE 
Max Response 
Time 
3 seconds 
Reference 
3GPP TS 27.007
[13] 
Note 
3.2.28 AT+CPIN Enter PIN 
AT+CPIN Enter PIN 
Test Command 
AT+CPIN=? 
Response 
OK 
Read Command 
AT+CPIN? 
Response 
TA returns an alphanumeric string indicating whether some password is 
required or not. 
+CPIN: <code> 
OK 










