A wide range of data transfer rates are available, with speeds up to about 128 kilobitspersecond.
提供较宽的数据传输速率，速率可达每秒128千位。
2
To transmit text messages, these devices use traditional phone lines, which can transmit a maximum of 56 kilobitspersecond.
这些设备使用传统电话线发送文字信息，最多每秒发送56 kb。
3
Digital wireless communication, which has gained wide spread acceptance recently, is also limited in available transmission rate to a few kilobitspersecond.