Jul 19 11:11:48 WARNING[833]: chan_unicall.c:2644 handle_uc_event: Unicall/21 event Detected
Jul 19 11:11:55 WARNING[833]: chan_unicall.c:2644 handle_uc_event: Unicall/21 event Offered
Jul 19 11:11:55 WARNING[833]: chan_unicall.c:2699 handle_uc_event: CRN 32770 - Offered on channel 0 (ANI: 12135555385, DNIS: 3507, Cat: 0)
    -- Unicall/21 extension '3507' in context 'incoming' from '12135555385' does not exist.  Rejecting call
Jul 19 11:11:55 WARNING[833]: chan_unicall.c:2644 handle_uc_event: Unicall/21 event Far end disconnected
Jul 19 11:11:55 WARNING[833]: chan_unicall.c:2930 handle_uc_event: CRN 32770 - far disconnected cause=Normal Clearing [16]
Jul 19 11:11:55 WARNING[833]: chan_unicall.c:2644 handle_uc_event: Unicall/21 event Drop call
Jul 19 11:11:55 WARNING[833]: chan_unicall.c:2644 handle_uc_event: Unicall/21 event Release call