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If the both the btcall.cfg parameters are set and a value is passed into BfvFaxT30Params(), the offset will be additive.
The transmit level in BT_CPARM.CFG ranges from 0xCE to 0x00 (-50 to 0) where -50 corresponds to the lowest possible transmit level and 0 corresponds to the highest possible transmit level. So for xmt_level_override = 2 and xmt_level = 4 the transmit level would increase by 3 dB total. The receive level in BT_CPARM.CFG ranges from 0xA8 to 0xBC (-88 to -68) where -88 corresponds to the highest possible receive level and -68 corresponds to the lowest possible receive level. So for rcv_level_override = 2 and rcv_level = 4 the receive level would increase by 3 dB total as well. The calculation for negating the rcv_level_override and rcv_level will be done in the software due to the inverted range for the receive level.
The new keywords should appear in the user configuration file btcall.cfg as follows:
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- Currently, the plan is not to update the structure t30parampkt and the sample application mkinfopk.c to include xmt_level or rcv_level. I believe that the fax transmission levels and fax reception levels will work as follows:
Tasks Releated to Feature
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