Jul  3 11:14:17 WARNING[3969] chan_unicall.c: MFC/R2 UniCall/3      <- 3 on  [2/      40/Group I       /DNIS         ]
Jul  3 11:14:17 WARNING[3969] chan_unicall.c: MFC/R2 UniCall/3 7 off ->      [2/      40/Group I       /DNIS         ]
Jul  3 11:14:17 WARNING[3969] chan_unicall.c: MFC/R2 UniCall/3      <- 3 off [2/      40/Group I       /DNIS         ]
Jul  3 11:14:17 WARNING[3969] chan_unicall.c: MFC/R2 UniCall/3 1 on  ->      [2/      40/Group I       /DNIS         ]
Jul  3 11:14:17 WARNING[3969] chan_unicall.c: MFC/R2 UniCall/3      <- 2 on  [2/      40/Group II      /Category     ]
Jul  3 11:14:17 WARNING[3969] chan_unicall.c: MFC/R2 UniCall/3 1 off ->      [2/      40/Group II      /Category     ]
Jul  3 11:14:17 WARNING[3969] chan_unicall.c: MFC/R2 UniCall/3      <- 2 off [2/      40/Group II      /Category     ]
Jul  3 11:14:17 WARNING[3969] chan_unicall.c: MFC/R2 UniCall/3 R2 prot. err. [2/      40/Group II      /Category     ] cause 32772 - Unexpected
MF6 signal
Jul  3 11:14:17 WARNING[3969] chan_unicall.c: MFC/R2 UniCall/3 1001  ->      [1/       1/Idle          /Idle         ]
Jul  3 11:14:17 WARNING[3969] chan_unicall.c: Unicall/3 event Protocol failure
Jul  3 11:14:17 VERBOSE[3969] logger.c:     -- Unicall/3 protocol error. Cause 32772
Jul  3 11:14:17 WARNING[3969] chan_unicall.c: MFC/R2 UniCall/3 Channel echo cancel
Jul  3 11:14:17 DEBUG[3969] chan_unicall.c: disabled echo cancellation