| 摘要 |
A method for connecting a local (802) and a remote (822) device using a plurality of telephone lines (806a, 806b, 806k, 826a, 826b, 826n) is disclosed. Once they are connected, the bandwidth of these lines can be combined. The local (802) and remote (822) devices can function as though they are connected using a high bandwidth telephone line. In one embodiment of the invention, a first telephone connection is established. The local device (802) sends a second telephone number to the remote device (822), which can dial the second telephone number to establish a second telephone connection automatically. Methods for identifying anticipated callers are also disclosed. One of the methods uses caller-ID information. Another method, the ring acknowledgement method (RACK), uses the ring-ringback signal pair generated by local central office. The remote device (822) sends a ringback acknowledge message to the local device (802) upon receiving a ringback signal. Thus, the local device (802) knows that the call is from the remote device (822). Variations of this method (such as interval RACK, marked RACK, and timed RACK) are also disclosed.
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