Short Message Service Technical Realisation (GSM)
The Short Message Service is realised by the use of the Mobile Application Part (MAP) of the SS#7 protocol, with Short Message protocol elements being transported across the network as fields within the MAP messages. These MAP messages may be transported using 'traditional' TDM based signalling, or over IP using SIGTRAN and an appropriate adaptation layer. The Short Message protocol itself is defined by 3GPP TS 23.040 for the Short Message Service - Point to Point (SMS-PP), and 3GPP TS 23.041 for the Cell Broadcast Service (CBS).
Four MAP procedures are defined for the control of the Short Message Service:
- Mobile Originated (MO) short message service transfer;
- Mobile Terminated (MT) short message service transfer;
- Short message alert procedure;
- Short message waiting data set procedure.
Read more about Short Message Service Technical Realisation (GSM): MO Short Message Service Transfer, MT Short Message Service Transfer, Failed Short Message Delivery, MAP Transport Protocols
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