PioneerPOS G24-LC 用户手册

G24-L contains the following new and improved features:

SIM Application Toolkit (STK)

TCP/IP support

Audio (digital and analog) - path, gain and algorithm

User-defined profiles

For a full list of G24-L features, refer to the G24-L Module Hardware Description manual.

The SIM Toolkit (STK, also known as the SIM Application Toolkit or SAT) is a set of 
applications operated by the network provider (usually the module's SIM provider). If the STK is 
supported and enabled on the mobile side, specific data can be obtained via menu browsing.

The G24-L STK enables the terminal to obtain information via menus created by the provider, for 
example, "local news" or "weather info". These menus are provider dependent. Enabling the STK 
allows the provider to perform other actions regarding call control, SMS etc.

The STK supports the specific mechanism(s) that SIM applications require to interact and operate 
with the G24-L. Using this mechanism, the SIM can notify the terminal, via the G24-L, that a 
specific action is requested. A full list of supported actions is listed in the Proactive SIM section. 
For more information regarding the STK mechanism, refer to the GSM 11.11 [20], GSM 11.14 
ETSI standards.

Profile downloading provides a mechanism for the G24-L to transmit information describing its 
capabilities to the SIM. During the early, profile download phase of the protocol, the G24-L 
negotiates and confirms its ability to support the capabilities requested by the STK.

STK data transfer uses the short message service (SMS) as a transfer layer.