GSM 3.40 SMS SPECIFICATION PDF

6) for GSM TS – Technical realization of the Short Message Service (SMS ) or the SGSN is described in TS , and is dealt with in that specification. PID, Protocol Identifier, Parameter showing the SMSC how to process the SM (as FAX, Voice etc) . (For further information see GSM chapter ). TP-PID: TP-Protocol-Identifier. . This document gives only a very simple description of SMS in PDU mode. . See GSM TP-PID complete definition. 1 0.

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In time the Class 2 is supported, if you choose Class 1 or Class 3 the short message is treated the same way as a Gsk 2 message. However, a GSM Longer messages can be split to multiple parts and sent as a Concatenated SMS. The MR field gives an integer The SMS message can be deleted from memory eg.

From Wikipedia, the free encyclopedia. This octet is optional, see bits 4 and 3 of the first octet. The VP field is given in either integer or semi-octet representation. Default alphabet indicates that hsm UD User Data is coded from the 7-bit alphabet given in appendix A. When there is a new SMS message arrived, the phone will beep and the SMS message indicator will appear on the phone screen.

Other addresses are carried by lower layers. The remaining number bit-wise ‘and’ with ishexadecimal However, no such extensions are defined. Alphanumeric address is at first put to the GSM 7-bit default alphabet, then encoded the same way as any message text in TP-UD field that specirication it is 7-bit packed and then the address is supplied with the “number” length and TON and NPI.

However, the validity period is usually limited globally by the SMSC configuration parameter— often to 48 or 72 hours. In this example, the time zone, 8A is binary The octet is then coded as follows:.

SMS Messaging

Partners Contact us Sitemap. If the time zone offset is negative in Western hemisphere bit 3 of the last octet is set to 1. To read the SMS message, select [Read Messages] from the [Mail] menu using the left or right arrow button and the new message is usually shown first. For example, a fictional alphanumeric address Design Home is converted to the GSM 7-bit default alphabet which yields 11 bytes 44 65 73 69 67 6E 00 48 6F 6D 65 hexthe 7-bit packing transforms it to 77 bits stored in 10 octets as C4 F2 3C 7D 76 03 90 EF speecification 19; 77 bits is 20 nibbles 14 hex which is the value of the first octet of the address.

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In the first case, the representation of time is as follows:. The non-segmented message using national language shift table s may carry up to or 7-bit characters. These octets represent the message “hellohello”. This octet is optional. Treat this as any previous element in the sequence, hex 82 represents number Follow the steps below for sending the SMS message.

To read a SMS message from a particular location in memory eg. The length of the phone number is odd 11therefore a trailing F has been added, as if the phone number were “F”. User data length, length of message. Sender number decimal semi-octetswith a trailing F. This behaviour was designed for older mobile phones which don’t understand UDH; such mobile phones might display the UDH as a jumble of strange characters; if the first character after UDH was Carriage Return CRthe mobile phone would rewrite the mess with the rest of the message.

Enhanced format of TP-VP field is seldom used. In the second case, the VP comprises 7 octets, giving the absolute time of the vality period termination. Bit 3 is 1, therefore the time zone is negative. One octet includes two BCD-digit Fields.

The UDL field gives an integer representation of the number of characters within the User Data field to follow. The fields of SM-TP messages, including their order and size, are summarized in the following table, where M means a mandatory field, O an optional field, E is used for fields which are mandatory in negative responses RP-ERR and not present in positive responses Zpecificationx is a field present elsewhere:.

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Its 3 least significant bits have the following meaning:. Time specifixation is given in quarters of an hour.

The PID is the information element by which the Transport Layer either refers to the higher specificatioj protocol being used, or indicates interworking with a certain type of telematic device. By using this site, you agree to the Terms of Use and Privacy Policy.

Such message may be sent only if the original message had this flag cleared and the new message must be sent with the flag set. Support Knowledge base Technical support. The alphabet contains the most-often used symbols from most Western-European languages and some Greek uppercase letters.

The same was also true for other languages using non-Latin scripts like Russian, Arabic, Hebrew and various Indian languages. Length of SMSC information. If the originator and the recipient home networks differ, the reply would go through another SMSC then usually. The following 3 octets contain a relative validity period in hours, minutes and seconds as the 3rd to 5th octet of time format.

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GSM TS (1 of 6) – SMS: Short Message Service

These characters form GSM 7-bit default alphabet extension table. In this case the number must adhere to the mobile operator’s dial planwhich means that international numbers must have the international prefix 00 in most countries, but in the USA before the country code and numbers for long-distance calls must start with the trunk prefix 0 in most countries, 1 in the USA followed by a trunk code.

The value of 1 in the bit 6 of the first octet means that the message is Single-shot. Alphabet indication Unspecified message handling at the MS Default alphabet 7 bit data coding in the User Data reserved.