| 摘要 |
A communication system comprises a signaling processor and an interworking unit. The signaling processor receives and processes signaling for a call to select a connection and a first bandwidth rate. The signaling processor transfers a first message indicating the connection and the first bandwidth rate. The interworking unit receives the first message and user communications for the call, and in response, transfers the user communications over the connection at the first bandwidth rate. The interworking unit detects a trigger in the user communications, and in response, transfers the user communications over the connection at a second bandwidth rate.
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