> 1 | Introduction

> The purpose of this document1 is to describe how Siemens wireless modules monitor their radio link stability and how the monitoring data may be used by software programs to detect jamming of the module’s radio downlink by an evenly strong RF transmitter. Such a program can become part of an external application and may as such be employed to detect deliberate GPRS/GSM network interferences posing possible security risks.
> The document starts of by describing the monitoring data provided by the module. It goes on to explain how this information can be used to analyze radio link stability.

> 1
> The document is effective only if listed in the appropriate Release Notes as part of the technical documentation delivered with your Siemens wireless product.