A method and apparatus is described, by means of which a host data communication device obtains the effects of a desired data communication protocol, such as flow control, that may not be supported by a client device. The cellular telephone includes an antenna, a duplexer, receiver, an encoderdecoder apparatus, an acoustic transducer, a transmitter and a controller. The method is reproducible and is not bothered by the presence of other particles such as drill solids which interferes with conventional methods, for instance, light-scattering techniques. The identified algorithm is then transmitted to the wireless device.