Xircom EAG2919 Benutzerhandbuch
Eagle II GSM Radio Module Technical Manual Preliminary Draft: 08/31/00
21
Part Number: 07100017 version 00.04
© 2000 Xircom, Inc. All rights reserved.
All trademarks and copyrights are the property of Xircom, Inc.
All trademarks and copyrights are the property of Xircom, Inc.
SMS: Short Message Services
Short Message Services (SMS) is a feature-rich GSM service. The Eagle II module can
perform the following tasks:
perform the following tasks:
!
Sending and receiving text messages of up to 160 characters (7-bit characters)
!
Sending and receiving binary messages of up to 140 bytes (8-bit data)
!
Submitting a SMS Protocol Data Unit (PDU) to a SMSC (Short Message Service
Center) and storing a copy of the PDU until either a report arrives from the network or
a timer expires
Center) and storing a copy of the PDU until either a report arrives from the network or
a timer expires
!
Receiving a SMS PDU from a SMSC
!
Returning a delivery report to the network for a previously received message
!
Receiving a report from the network
!
Notifying the network when the module has sufficient memory capacity available to
receive one or more SMS messages (after the module had previously rejected a
message because its memory capacity was exceeded)
receive one or more SMS messages (after the module had previously rejected a
message because its memory capacity was exceeded)
SMS Features Supported by the Eagle II Module
The following list details the key characteristics and assumptions regarding the form of
SMS supported in the Eagle II module.
SMS supported in the Eagle II module.
!
Supports both mobile-originated (MO) and mobile-terminated (MT) SMS
!
Delivers the message to a telephone
!
Supports 8-bit data
!
Supports Message Class 1
!
Supports the concatenation of up to 255 messages
!
Provides a status report indicator
!
Supports the More Messages to Send (MMS) feature
!
Allows the definition of a validity period
!
Provides the Service Center Time Stamp
!
Alerts the SMSC
!
Supports Priority
!
Supports Message Waiting
!
GPRS (Future/Optional)
General Packet Radio Service (GPRS)
GPRS is the next step in GSM data services: a fully packet-based protocol service with
direct access to the Internet. By bringing the best features of messaging, circuit-switched
services, and packet data into harmony, GPRS promises to make new applications even
more practical and affordable. Future releases of the Eagle II module will support GPRS
mode. Currently, the Eagle II module is hardware-ready for GPRS, if the optional memory
upgrade is installed.
direct access to the Internet. By bringing the best features of messaging, circuit-switched
services, and packet data into harmony, GPRS promises to make new applications even
more practical and affordable. Future releases of the Eagle II module will support GPRS
mode. Currently, the Eagle II module is hardware-ready for GPRS, if the optional memory
upgrade is installed.