| 摘要 |
A system and method for emulating phone extensions in a packet telephony distribution system include using a gateway and an adapter. Signalling protocols between the gateway and the adaptor provide procedures to enable typical analog phone system characteristics such as a dial tone and a line-in-use indicator. During an incoming or outgoing call, users of multiple phones on the packet telephony distribution system can make and receive calls or join a call in progress using methodologies commonly used for typical analog phone systems.
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