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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SMS Messaging

From Wikipedia, the free encyclopedia. This octet is optional. Using the SMSC stored in phone is thus implicit.

However, SMS message can be sent out or received in a similar fashion using other mobile phones. The number itself must always start with a country code and must be formatted exactly according to the E.

This octet is optional, see bits 4 and 3 of the first octet. 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. In Class 0 immediate display the short message is written directly in the display, as the M20 Terminal has no display the Class 0 message can be realised only in a roundabout way.

The MR field gives an integer The same was also true for other languages using non-Latin scripts specifcation Russian, Arabic, Hebrew and various Indian languages. On some phones this octet should be omitted!

In this example, the time zone, 8A is binary The VP field is given in either integer or semi-octet representation. The content of the message its text when the message is not a binary one is carried in the TP-UD field.

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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. The phone number in semi octets Message “hellohello”8-bit octets representing 7-bit data.

They are not stored in the phone, they just displayed on the phone display. Type-of-address of the SMSC. Its 3 least significant bits have the following meaning:.

Treat this as any previous element in the sequence, hex 82 represents number These octets represent the message “hellohello”.

These characters form GSM 7-bit default alphabet extension table. Having “02” instead of xpecification here, would indicate that the TP-User-Data field of this message should be interpreted as 8bit rather than 7bit used in e.

The length of the phone number is odd 11so a trailing F has been added to form proper octets. Length specfication phone number The TP-DCS octet has a complex syntax to allow carrying of other information; the most notable are message classes:.

The mobile operator must take special measures to charge such messages. If the time zone offset is negative in Western hemisphere bit 3 of the last octet is set to 1.

GSM – Wikipedia

The remaining number bit-wise ‘and’ with issspecification 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. Insert a SIM card into the mobile phone and turn the phone on.

If ems originator and the recipient home networks differ, the reply would go through another SMSC then usually. The non-segmented message using national language shift table s may carry up to or 7-bit characters. Bit 3 is 1, therefore the time zone is negative. Enhanced format of TP-VP field is seldom used.

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To read a SMS message from a particular location in memory eg. A special DCS values also allows message compressionbut it perhaps is not used by any operator. You will then need to enter the destination number for the SMS message. In this case the number must specificwtion 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.

Length of the SMSC information in this case 7 octets. The value of 1 in the bit 7 of the first octet specificatiob that TP-VP functionality indicator extends to another octet. Alphabet indication Unspecified message handling at the MS Default alphabet 7 bit data coding in the User Data reserved. The following octet is a relative validity period as described in the Relative Validity Period Values table. The UDL field gives an integer representation of the number of characters within the User Data field to follow.

When there is a new SMS message arrived, the phone will beep and the SMS message indicator will appear on the phone screen. Partners Contact us Sitemap.

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

GSM recognizes only 2 encodings for text messages and 1 encoding for binary messages:. Views Read Edit View history. Note that this has the length 10 Awhich is even.

The absolute format is identical to the other time formats in GSM