This section gives the syntax and other information of the following OpenTP1 UAP main and service functions. The SPP and MHP create main and service functions, whereas the SUP creates only main functions.

• Create a main function (SUP, SPP, MHP)
• Create a service function (SPP)
• Create a service function (MHP)

The method for creating SGW main and service functions must conform to the specification of the open system being used.

TP1/LiNK can use only the SUP, SPP and MHP as the OpenTP1 UAP. However, TP1/Messaging is required when you create MHPs under TP1/LiNK.