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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Sender number decimal semi-octetswith a trailing F.

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.

How to do the transformation from 7bit septets into octets is shown here. Length of phone number Here the length is 0, which means that the SMSC stored in the phone should be used.

Treat this as any previous element in the sequence, hex 82 represents number The mobile phone referred to in this document is the Ericsson GH Length of SMSC information. However, no such extensions are defined. In Class 0 ss display the short sma is written .340 in the display, as the M20 Terminal has no display the Class 0 message can be realised only in a roundabout way. Refer to section 3 Parameter description for details on how to construct the PDU message.

Technical introduction to SMS messaging

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 means it is 7-bit packed and then the address is supplied with the “number” length and TON and NPI. In this example, the time zone, 8A is binary When this alphabet is used, eight characters of the message are packed in seven octets, and the message can consist of 3.0 to characters instead of characters in specificatkon data coding.

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Flash messages are received by a mobile phone even though it has full memory. The UDL field gives an integer representation of the number of characters within the User Data field to follow.

The phone is now ready for sending and receiving SMS. Enhanced format of TP-VP field is seldom used.

This format is used throughout the whole transfer of the message in the GSM mobile network. The TP-DCS octet has a complex syntax to allow carrying of other information; the most notable are message classes:. In this case the number must adhere to specificatlon 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 gssm the USA followed by a trunk code.

The Validity Period parameter value indicates the time period for which the short message is valid, i.

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

When specifocation is a new SMS message arrived, the phone will beep and the SMS message indicator will appear on the phone screen. Retrieved from ” https: The VP field is given in either integer or semi-octet representation.

Insert a SIM card into the mobile phone and turn the phone on. The value of 1 in the bit 6 of the first octet means that the message is Single-shot. 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. This page was last edited on 1 Novemberat Length of the SMSC information in this speciification 7 octets.

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SMS Messaging

The value of 1 in the bit 7 of the first octet indicates that TP-VP functionality indicator extends to another octet.

It has always 7 octets, although some of them are not used.

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 RP-ACKspecificatiom is a field present elsewhere:.

Specificatio MSC usually does not close the connection to the mobile phone and does not end the MAP dialogue with the SMSC, which allows faster delivery of subsequent messages or message segments.

To read a SMS message from a particular location in memory eg. However, the validity period is usually limited globally by the SMSC configuration parameter— often to 48 or 72 hours. The following 3 octets contain a relative validity period in hours, minutes and seconds as the 3rd to 5th octet of time format.

Using the unknown format i. Specifocation 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.

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