tdma Bc Modem Async Mode

This attribute indicates whether conversion between synchronous and asynchronous data format (specifically, the stripping or insertion of start and stop bits) is being performed. The value is on unless the V.42 layer is active or it is a fax call. This attribute has one of the following values: on: Conversion between synchronous and asynchronous data is being performed. off: Conversion between synchronous and asynchronous data is not being performed.