-- Starting simple switch on 'Zap/1-1'
[Jun 7 06:02:13] NOTICE[7937]: chan_zap.c:6351 ss_thread: Got event 18 (Ring Begin)...
[Jun 7 06:02:14] NOTICE[7937]: chan_zap.c:6351 ss_thread: Got event 2 (Ring/Answered)...
[Jun 7 06:02:21] WARNING[7937]: chan_zap.c:6483 ss_thread: CallerID returned with error on channel 'Zap/1-1'
== Starting Zap/1-1 at default,s,1 failed so falling back to exten 's'
== Starting Zap/1-1 at default,s,1 still failed so falling back to context 'default'
[Jun 7 06:02:21] WARNING[7937]: pbx.c:2450 __ast_pbx_run: Channel 'Zap/1-1' sent into invalid extension 's' in context 'default', but no invalid handler