I found in the module uac documentation:

"6.1.  event_route[uac:reply]
Event route executed for the final reply to the request set with uac_req_send(). 

Thanks,
Julia

On Mon, Sep 19, 2016 at 1:34 PM, Julia Boudniatsky <juliabo@gmail.com> wrote:
I send INVITE via uac_send_req() and receive "183" and "200"responses.
Only "200" appears in the log of event_route[uac:reply].

Is event_route[uac:reply] executed only for final responses?

Thank you,
Julia