| 摘要 |
A system and method in a network-based telephone system for simulating a typical plain old telephone system (POTS) connection by generating sounds in response to conditions in the telephone connection that simulate POTS sounds that occur during the typical POTS connection. Telephones in a network-based telephone system are connected to a wide-area network (WAN) such as the Internet via an Internet telephony gateway. A calling telephone connects to the local exchange carrier to permit a user to connect to a calling Internet telephony gateway by dialing an access telephone number. The calling Internet telephony gateway receives access information and the destination telephone number and uses the destination telephone number to determine the Internet telephony gateway that is closest to the called telephone with the destination telephone number. The calling Internet telephony gateway connects to the called Internet telephony gateway which connects to the called telephone number. During the setup of the connection, the calling Internet telephony gateway generates dialing sounds to the calling telephone. The Internet telephony gateway may also generate busy signals, fast busy signals, click sounds and comfort noise sounds to provide the caller with a POTS feel.
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