System Requirements

The Pro/Multi combined GSM, GPRS, and UMTS™ stack requires approximately 4M byte of ROM and from 512K byte to 1M byte of RAM. All code is in standard ANSI C and C++, and the stack is independent of hardware platform and RTOS

At command interpreter

Implements 27.007 commands for GSM and GPRS, and UMTS™

RAT (Radio Access Technology) Manager

Controls GSM / UMTS™ mode switching

Internet Protocol (TCP/IP)

Provided by third party

Sub-Network Dependent Convergence Protocol (SNDCP)

Interface to AT command interpreter
Interfaces with IP directly or via PPP
Compression of TCP/IP headers
V.42bis data compression

GPRS Short Message Service (GSMS)

MO and MT messages send or received over GSM, GPRS or UMTS™

Circuit Switched Data Services

Transparent & non-transparent
Group 3 FAX
Up to 14.4k bits/sec uncompressed
V.42bis data compression

SIM / USIM Interface

Supports GSM SIMs and UMTS™ USIMs

SAT / USAT

SIM Application Toolkit for GSM and UMTS™

Multi-mode Layer 1 / Physical

Up to multi-slot class 12 GPRS
Inter-RAT handovers
Simple primtive interfaces
Generic core design
Easily portable
Optimal power-saving

RTOS Support

Any standard RTOS may be used