-- Starting simple switch on 'Zap/1-1'
  == Starting Zap/1-1 at incoming,s,1 failed so falling back to exten 's'
  == Starting Zap/1-1 at incoming,s,1 still failed so falling back to context 'default'
Nov 27 18:14:26 WARNING[11466]: pbx.c:2347 __ast_pbx_run: Channel 'Zap/1-1' sent into invalid extension 's' in context 'default', but no invalid handler
    -- Hungup 'Zap/1-1'
    -- Starting simple switch on 'Zap/1-1'
Nov 27 18:14:36 NOTICE[11469]: chan_zap.c:6031 ss_thread: Got event 2 (Ring/Answered)...
  == Starting Zap/1-1 at incoming,s,1 failed so falling back to exten 's'
  == Starting Zap/1-1 at incoming,s,1 still failed so falling back to context 'default'
Nov 27 18:14:36 WARNING[11469]: pbx.c:2347 __ast_pbx_run: Channel 'Zap/1-1' sent into invalid extension 's' in context 'default', but no invalid handler
    -- Hungup 'Zap/1-1'
    -- Starting simple switch on 'Zap/1-1'
Nov 27 18:14:50 WARNING[11472]: chan_zap.c:6105 ss_thread: CallerID returned with error on channel 'Zap/1-1'
  == Starting Zap/1-1 at incoming,s,1 failed so falling back to exten 's'
  == Starting Zap/1-1 at incoming,s,1 still failed so falling back to context 'default'
Nov 27 18:14:50 WARNING[11472]: pbx.c:2347 __ast_pbx_run: Channel 'Zap/1-1' sent into invalid extension 's' in context 'default', but no invalid handler
    -- Hungup 'Zap/1-1'