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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Partners Contact us Sitemap. To read a SMS message from a particular location in memory eg. In the first case, the representation of time is as follows:. The mobile operator must take special measures to charge such messages.

Languages which use Latin scriptbut use characters which are not present in the GSM 7-bit default alphabet, often replace missing characters with diacritic marks with corresponding characters without diacritics, which causes not entirely satisfactory user experience, but is often accepted.

In this example, the time zone, 8A is binary The MR field gives an integer Any handset must be able to receive such short message irrespective of whether there is memory available in the U SIM or ME or not, must acknowledge receipt of the message, but must not indicate its receipt to the user and must discard its contents, so the message will not be stored in the U SIM or ME. The UDL field gives an integer representation of the number of characters within the User Data field to follow.

Other addresses are carried by lower layers. This message is coded according to the 7bit default alphabet. Here the length is 0, which means that the SMSC stored in the phone should be used.

The PID is the information element by which the Transport Layer either refers to the higher layer protocol being used, or indicates interworking with a certain type of telematic device. When the message encoding is GSM 7-bit default alphabet and a UDH is present, fill bits are inserted to align start of the first character of the text after UDH with septet boundary. This service enables the SM-AL to transfer short messages to its peer entity, receive short messages from its peer entity and receive reports about earlier requests for short messages to be transferred.

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

Refer to section 3 Parameter description specofication details on how to construct the PDU message. The alphabet contains the most-often used symbols from most Western-European languages and some Greek uppercase letters. The following octet is a relative validity period as described in the Relative Validity Period Values table. 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.

The content of the specificaion its text when the message is not a binary one is carried in the Ggsm field. Messages sent via this encoding can be encoded in the default GSM 7- bit alphabet, the 8-bit data alphabet, and the bit UCS-2 alphabet. Note that this has the length 10 Awhich is even.

The gm of the phone number is odd 11so a trailing F has been added to form proper octets. It has always 7 octets, although some of them are not used. Ordering License information Order now.

Having “02” instead of “00” here, would indicate that the TP-User-Data field of this message should be interpreted as 8bit rather than 7bit used in e. User data length, length of message. Time zone is given in quarters of an hour.

SMS Messaging

This octet is optional. The length of the phone number is odd 11therefore a trailing F has been added, as if gem phone number were “F”. Longer messages can be split to multiple parts and sent as a Concatenated SMS. 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 specifocation a trunk code.

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The Validity Period parameter value indicates the time period for which the short message is valid, i. Treat this as any previous element in the sequence, hex 82 represents number This document describes the process of sending SMS messages between a mobile phone and the M20 Terminal. Retrieved from ” https: If the time zone offset is negative in Western hemisphere bit 3 of the last octet is set to 1. Versenden von Kurznachrichten mittels PDU.

This format is used throughout the whole transfer of the specificatuon in the Specificafion mobile network. 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 Class 2 message.

SMS messages and the PDU format

The VP field is given in either integer or semi-octet representation. Enhanced format of TP-VP field is seldom used.

Length of SMSC information. Using the unknown format i. The TP-DCS octet has a complex syntax to allow carrying of other information; the most notable are message classes:. One octet includes two BCD-digit Fields. A special DCS values also allows message compressionbut it perhaps is not used by any operator. Alphabet indication Unspecified message handling at the MS Default alphabet 7 bit data coding in the User Data reserved.

Although these changes are ancient version 6.