*CLI> DIAL 200@TT_extensions
    -- Executing Macro("OSS/dsp", "extwvm|Hui||200@TT") in new stack
    -- Executing Dial("OSS/dsp", "IAX/Hui||t") in new stack
Feb 17 12:18:34 WARNING[8598]: channel.c:2530 ast_request: No channel type registered for 'IAX'
Feb 17 12:18:34 NOTICE[8598]: app_dial.c:1010 dial_exec_full: Unable to create channel of type 'IAX' (cause 66 - Channel not implemented)
  == Everyone is busy/congested at this time (1:0/0/1)
    -- Executing VoiceMail("OSS/dsp", "u200@TT") in new stack
 << Console call has been answered >>
*CLI> Feb 17 12:18:34 WARNING[8598]: chan_oss.c:585 setformat: Unable to re-open DSP device /dev/dsp: No such device
    -- Playing 'vm-theperson' (language 'en')
Feb 17 12:18:35 WARNING[8598]: chan_oss.c:585 setformat: Unable to re-open DSP device /dev/dsp: No such device
    -- Playing 'digits/2' (language 'en')
Feb 17 12:18:36 WARNING[8598]: chan_oss.c:585 setformat: Unable to re-open DSP device /dev/dsp: No such device
    -- Playing 'digits/0' (language 'en')
Feb 17 12:18:37 WARNING[8598]: chan_oss.c:585 setformat: Unable to re-open DSP device /dev/dsp: No such device
    -- Playing 'digits/0' (language 'en')
    -- Playing 'vm-isunavail' (language 'en')
Feb 17 12:18:38 WARNING[8598]: chan_oss.c:585 setformat: Unable to re-open DSP device /dev/dsp: No such device
Feb 17 12:18:39 WARNING[8598]: chan_oss.c:585 setformat: Unable to re-open DSP device /dev/dsp: No such device
    -- Playing 'vm-intro' (language 'en')
Feb 17 12:18:40 WARNING[8598]: chan_oss.c:585 setformat: Unable to re-open DSP device /dev/dsp: No such device
Feb 17 12:18:41 WARNING[8598]: chan_oss.c:585 setformat: Unable to re-open DSP device /dev/dsp: No such device
Feb 17 12:18:42 WARNING[8598]: chan_oss.c:585 setformat: Unable to re-open DSP device /dev/dsp: No such device
  == Spawn extension (macro-extwvm, s, 2) exited non-zero on 'OSS/dsp' in macro 'extwvm'
  == Spawn extension (TT_extensions, 200, 1) exited non-zero on 'OSS/dsp'
 << Hangup on console >>