GM862-GPS Software User Guide - SemiconductorStore.com

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GM862-GPS Software User Guide1vv0300729 Rev. 4 - 24/01/07TIP: The default value for DCS = 0 represents the default SMS sent by a mobile. If you don'tneed any particular data coding scheme use DCS=0.NOTE: Not all the DCS combinations described in the GSM 3.38 are supported, both by thenetwork and by the Telit GM862-GPS. Some features may be not implemented at network levelor at device level, resulting in a +CMS ERROR: 303 (operation not supported) result code. Ifthis happens then use a different DCS.• send command AT+CSMP=,,,where:: Message format: Validity Period: Protocol Identifier: Data coding Scheme• wait for OKFor example:1- Let's assume you want to set the SMS parameters to the values:- Message Format:- SMS submit- don't reject duplicates- VP Format integer (relative)- status report not requested- No Header on PDU- Reply path not setHence, the message format is the binary number 00010001 corresponding to the integer 17.- Validity period 24 hours corresponding to an integer value 167.12 hours + ((167 -143) x 30 min) = 24 hours- Protocol ID implicit (SMS sent to a mobile terminal) corresponding to a value 0.- DCS default value 0.command:AT+CSMP= 17,167,0,0response:OK2- Let's assume you want to set the SMS parameters to the values:- Message Format:- SMS submit- don't reject duplicates- VP Format semi octet (absolute)- status report requestedReproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 64 of 111
GM862-GPS Software User Guide1vv0300729 Rev. 4 - 24/01/07- No Header on PDU- Reply path not setHence, the message format is the binary number 00111001 corresponding to the integer 57.- Validity period format is absolute, hence it represents the expiration date of the message and thedesired expiration date is for example 29/06/02 at 02:20 in the time zone of Italy (+1)."29/06/02,02:20:00+1"- Protocol ID implicit (SMS sent to a mobile terminal) corresponding to a value 0.- Data Coding Scheme:- Default Alphabet- Class 0 (e.g. immediate display SMS)Corresponding to the binary number 11110000 corresponding to the integer 240.command:AT+CSMP= 57,29/06/02,02:20:00+1,0,240response:OK3.5.1.6 Select SMS Memory and check for memory spaceThere are various types of storage where the SMS can be stored, the Telit GM862-GPS provides twodifferent storage:"ME" - mobile equipment memory"SM" - SIM Card memoryThe SMS are usually stored (this is true for both the originated and the received SMS) in the SMstorage, the "ME" storage is a read only one where the Class 0 messages received are stored(regardless of the selected active storage which may be "SM").For this reason the "ME" storage can be selected to read the Class 0 messages.The GM862-GPS allows the user to select a different storage for the read-delete, write-send, andreception-saving SMS operations.• send command AT+CPMS=,,where:: memory storage for Read and Delete commands- "SM"- "ME" (No Delete operations allowed): memory storage for Write and Send commands: memory storage for new incoming message saving- "SM" only• wait for response in the format:+CPMS:,,,,,OKReproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 65 of 111
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2.5.2.3 Provide SIM PIN (only if re
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