Sorry, whole message as:
1d05h: ISDN Se0:23: RX CALL_PROC pd = 8 callref = 0x8004
1d05h: Channel ID i = 0xA98381
1d05h: ISDN Se0:23: TX -> DISCONNECT pd = 8 callref = 0x8004
1d05h: Cause i = 0x8081 – Unallocated/unassigned number
1d05h: ISDN Se0:23: RX RELEASE_COMP pd = 8 callref = 0x8004
1d05h: ISDN Se0:23: RX