| 摘要 |
A method of local call detection and notification for a communication device that communicates with an enterprise system via a secure digital voice connection and locally with the Public Switched telephone system (PSTN) via an analog line, comprising detecting within said enterprise system a dialing sequence at said communication device for which local call routing is to be applied and in response initiating call routing through said enterprise system and sending a request message to said communication device including said dialing sequence; receiving said request message within the communication device and in response the communication device determines availability of said analog line, and in the event said analog line is available sending a response message to said enterprise system for aborting said call routing through said enterprise system and the communication device locally dialing said sequence over said analog line; and in the event said analog line is not available continuing said call routing through said enterprise system.
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