#1994 P25 Phase1 Missing Subsequent Calls Audio When Multiple Conversants On Same Traffic Channel #1995
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…ations on the same traffic channel. Fixed issue where sdrtrunk was not checking HDU and LDU2 encryption sequences as valid before assessing the encryption state of a call. Updated P25P1 audio module to check the valid flag for both the HDU and the LDU2 encryption segment before assigning encryption state. Now caches all LDU messages until encryption state is determined.
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Closes #1994
P25 Phase1 missing subsequent calls audio when multiple conversations on the same traffic channel.
Fixed issue where sdrtrunk was not checking HDU and LDU2 encryption sequences as valid before assessing the encryption state of a call. Updated P25P1 audio module to check the valid flag for both the HDU and the LDU2 encryption segment before assigning encryption state. Now caches all LDU messages until encryption state is determined.
This was happening on at least Harris VHF systems due to what sdrtrunk was interpreting to be a partial/malformed Header Data Unit (HDU) being transmitted at the end of the first call audio, where the decoded HDU indicated an encrypted call.