sip show peers
Name/username              Host            Dyn Nat ACL Port     Status
0010001                    (Unspecified)    D   N      0        UNKNOWN
000003                     (Unspecified)    D   N      0        UNKNOWN
000002/000002              79.4.234.117     D   N      37706    OK (91 ms)
000001/000001              79.4.234.117     D   N      5062     OK (82 ms)
4 sip peers [2 online , 2 offline]
    -- Executing Dial("SIP/000001-0815fc18", "SIP/000002") in new stack
    -- Called 000002
Jul 19 19:44:30 NOTICE[5239]: chan_sip.c:2006 auto_congest: Auto-congesting SIP/000002-081a9a78
    -- SIP/000002-081a9a78 is circuit-busy
  == Everyone is busy/congested at this time (1:0/1/0)