[OpenSIPS-Users] SIP Call ID duplicated on 3.1.14

[Saint Michael]

I have on a typical day many calls that arrive twice, same  SIP CALL ID,
almost the same time, maybe the next millisecond. This happens because the
dialer does not wait for a confirmation, and resends the same call multiple
times. But it confuses my CDR.
Is there a way to check for the CALL ID and discard the INVITE if there is
another INVITE already in progress?
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