Console Output
--------
    -- Executing Dial("IAX2/306-1", "Unicall/2/8228448|40|tr") in new stack
May 29 14:28:00 WARNING[15299]: chan_unicall.c:627 unicall_report: MFC/R2 UniCall/2 Call control(1)
May 29 14:28:00 WARNING[15299]: chan_unicall.c:627 unicall_report: MFC/R2 UniCall/2 Make call
May 29 14:28:00 WARNING[15299]: chan_unicall.c:627 unicall_report: MFC/R2 UniCall/2 Making a new call with CRN 32769
    -- Called 2/8228448
May 29 14:28:00 WARNING[15299]: chan_unicall.c:2644 handle_uc_event: Unicall/2 event Dialing
May 29 14:28:02 WARNING[15299]: chan_unicall.c:627 unicall_report: MFC/R2 UniCall/2 seize_ack_wait_expired
May 29 14:28:02 WARNING[15299]: chan_unicall.c:627 unicall_report: MFC/R2 UniCall/2 R2 prot. err. [1/      40/Seize         /Idle         ] cause 32776 - Seize ack timed out
May 29 14:28:02 WARNING[15299]: chan_unicall.c:2644 handle_uc_event: Unicall/2 event Protocol failure
    -- Unicall/2 protocol error. Cause 32776
---------------
unicall.conf

protocolclass=mfcr2
loglevel=5
protocolend=cpe
protocolvariant=vn,20,7
channel=1-15
dchan=16
channel=17-31
-----------------
zaptel.conf
span=1,1,0,cas,hdb3
cas=1-15:1101
cas=17-31:1101