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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These characters form GSM 7-bit default alphabet extension table. Setting the TP-RP bits turns on a feature which allows to send a reply for a message using the same path as the original message.
Time zone is given in quarters of an hour. 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 following 3 340 contain a relative validity period in hours, minutes and seconds as the 3rd to 5th octet of time format.
If the originator and the recipient home networks differ, the reply would go through another SMSC then usually. The TP-DCS octet has a complex syntax to allow carrying of other information; the most notable are message classes:. 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.
Using the unknown format i. Support Knowledge base Technical support. Follow the steps below for sending the SMS message.
The non-segmented message using national language shift table s may carry up to or 7-bit characters. The number itself must always start with a country code and must be formatted exactly according to the E. The phone is now ready for sending and receiving SMS.
Sender number decimal semi-octetswith a trailing F. When this alphabet is used, eight characters of the message are packed in seven octets, and the message can consist of up to characters instead of characters in 8-bit data coding. This format is used throughout the whole transfer of the message in the GSM mobile network.
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-ACKx is a field present elsewhere:.
The mobile phone referred to in this document is the Ericsson GH The value of 1 in the bit 7 of the first octet indicates that TP-VP functionality indicator extends to another octet. Message “hellohello”8-bit octets representing 7-bit data.
Length of phone number They are not stored in the phone, they just displayed on the phone display. This message is coded according to the 7bit default alphabet. The 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.
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.
GSM – Wikipedia
TP-PID Protocol identifier either refers to the higher layer protocol being used, indicates interworking with a certain type of telematic device like faxtelexpagerteletexe-mailspecifies replace type of the message or allows download of configuration parameters to the SIM card.
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 76 19; 77 bits is 20 nibbles 14 hex which is the value of the first octet of the address.
Refer to section 3 Parameter description for details on how to construct the PDU message. 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.
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. Ordering License information Order now. 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.