CSR8670作source端，怎么给别的蓝牙模块打电话呢？

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C.2 Limitations of Analogue Mode Operation
Using the Source application in Analogue mode has the following restrictions, which do not apply for USB mode.
The HFP profile is not intended for use in an Analogue mode device. The audio associated with the
HFP profile is not routed, so is not audible at the Source application end or the remote end.

<CS-224993-UGP4ADKSourceApplicationUserGuide.pdf> page 55