-- Executing Answer("SIP/12-57e0", "") in new stack
    -- Executing Dial("SIP/12-57e0", "SIP/200.47.132.33/59170726069") in new stack
    -- Called 200.47.132.33/59170726069
Jul  5 16:37:33 WARNING[330]: channel.c:2693 ast_channel_make_compatible: No path to translate from SIP/200.47.132.33-edf4(4) to SIP/12-57e0(256)
Jul  5 16:37:33 WARNING[330]: chan_sip.c:2555 sip_write: Asked to transmit frame type 256, while native formats is 4 (read/write = 4/4)
Jul  5 16:37:33 WARNING[330]: chan_sip.c:2555 sip_write: Asked to transmit frame type 256, while native formats is 4 (read/write = 4/4)
Jul  5 16:37:33 WARNING[330]: chan_sip.c:2555 sip_write: Asked to transmit frame type 256, while native formats is 4 (read/write = 4/4)
    -- Got SIP response 488 "Not Acceptable Media" back from 200.47.132.33
    -- SIP/200.47.132.33-edf4 is circuit-busy
  == Everyone is busy/congested at this time (1:0/1/0)
    -- Executing Hangup("SIP/12-57e0", "") in new stack
  == Spawn extension (mycontext, 555, 3) exited non-zero on 'SIP/12-57e0'