This chapter describes the basic features of the infoX-SMS system. Taking the GSM
and CDMA networks for example, this chapter covers the position of the SMS system
in the mobile network, as well as the functions and compliant specifications of the
infoX-SMS system.
You can learn about the features of the SMS system through reading this chapter.
1.1 Basic Concepts
The infoX-SMS system is a service processing system independent of the mobile
network. It is responsible for submitting, storing, and forwarding short messages
(SMs). It implements the interconnection with such networks as the public switched
telephone network (PSTN), integrated services digital network (ISDN) and packet
switched public data network (PSPDN) so as to transfer SMs between extended short
message entities (ESMEs) and mobile stations (MSs).
The SMS system supports the SMC running mode and the FDA running mode. The
license decides which running mode is used in the SMS system. In the SMC running
mode, the SMS system stores and forwards the SMs. In the FDA running mode, the
SMS system does not store the SMs. Instead, the SMS system delivers the SM once
only. When a delivery fails, the system forwards the SM to the SMS system with the
function of storing SMs.
The basic services of the SMS system include:
- Mobile originated (MO) messages
- Mobile terminated (MT) messages
- Access through SMPP 3.3 and SMPP 3.4
- SMs encoded in Unicode
- Alert notification service
- SM signature service
The SMS system:
- Implements SM exchange between the GSM, TDMA and CDMA networks.
- Communicates with the PSTN, ISDN, and PSPDN, so as to transmit SMs from other short message entities (SMEs) such as the manual station and the automatic station. It is responsible for the SM reception, scheduling, storing, routing, backing up, forwarding, and delivering; implements the management on the SMEs connected to the SMS system.Besides all the features of the version V300R001, the SMS system of this version is applied to the CDMA, TDMA, and GSM networks, providing the SM exchange among the CDMA, GSM and TDMA networks.
