scope:

The aim of this Recommendation is to define use cases and test methods for narrow-band hands-free communication in vehicles. This Recommendation covers:

- built-in hands-free systems;

- after-market hands-free car kits;

- corded headsets; and

- wireless headsets;

to be used in vehicles for communication while driving.

This Recommendation addresses the test of complete systems as well as the subsystems of hands-free microphone and telephone with short-range wireless transmission link used to interconnect the hands-free system to the mobile network.

For testing, the test set-up and the recommended environmental conditions are described.

The methods, the analysis and the performance parameters described in this Recommendation are based on test signals and test procedures as defined in [ITU-T P.501], [ITU-T P.502], [ITU-T P.340] and [ITU-T P.380].

Although important, subjective testing is outside the scope of this Recommendation, some guidance on how to conduct subjective tests can be found in clause 14.