[asterisk-users] Unable to create channel of type 'SIP' (cause 20 - Subscriber absent)

[Face]

Hello,

After Upgrade to Asterisk 11.1.0-rc1 I keep getting

  == Using SIP VIDEO TOS bits 136
  == Using SIP VIDEO CoS mark 6
  == Using SIP RTP TOS bits 184
  == Using SIP RTP CoS mark 5
    -- Executing [603 at DLPN_AlDimnaDialPlan:601]
Dial("SIP/601-00000002", "SIP/603") in new stack
[Nov 16 06:42:33] WARNING[15547][C-00000004]: app_dial.c:2433
dial_exec_full: Unable to create channel of type 'SIP' (cause 20 -
Subscriber absent)
  == Everyone is busy/congested at this time (1:0/0/1)
    -- Auto fallthrough, channel 'SIP/601-00000002' status is 'CHANUNAVAIL'

and would not go to voicemail?

-- 
Sincerely,