Specifications
SIM900 AT Command Manual       
SIM900_AT Command Manual_V1.03  128  12/24/2010 
0 disable 
1 enable 
Unsolicited Result Code 
When "get local timestampā function is enabled, the following URC may 
be reported if network sends the message to the MS to provide the MS 
with subscriber specific information. 
1. Refresh network name by network: 
*PSNWID: "<mcc>", "<mnc>ā, "<full network name>", <full 
network name CI>, "<short network name>",<short 
network name CI> 
2. Refresh time and time zone by network: 
This is UTC time, the time queried by AT+CCLK command is local 
time. 
*PSUTTZ: <year>, <month>, <day>, <hour>, <min>, <sec>, "<time 
zone>", <dst> 
3. Refresh network time zone by network: 
+CTZV: "<time zone>" 
4. Refresh Network Daylight Saving Time by network: 
DST: <dst> 
Parameters 
<mcc> string type; mobile country code 
<mnc> string type; mobile network code 
<full network name> string type; name of the network in full length. 
<full network name CI> integer type; indicates whether to add CI. 
 0    The MS will not add the initial letters of the Country's 
Name to the text string. 
1 The MS will add the initial letters of the Country's 
Name and a separator (e.g. a space) to the text string. 
<short network name> string type; abbreviated name of the network
<short network name CI> integer type; indicates whether to add CI. 
 0    The MS will not add the initial letters of the Country's 
Name to the text string. 
1 The MS will add the initial letters of the Country's 
Name and a separator (e.g. a space) to the text string. 
<year> 4 digits of year (from network) 
<month> month (from network) 
<day> day (from network) 
<hour> hour (from network) 
<min> minute (from network) 










