-- Starting simple switch on 'Zap/2-1'
Dec 19 00:56:51 NOTICE[11692]: chan_zap.c:5363 ss_thread: Got event 17 (Polarity Reversal)...
Dec 19 00:56:51 ERROR[11692]: callerid.c:260 callerid_feed: fsk_serie made mylen < 0 (-30)
Dec 19 00:56:51 WARNING[11692]: chan_zap.c:5392 ss_thread: CallerID feed failed: Success
Dec 19 00:56:51 WARNING[11692]: chan_zap.c:5434 ss_thread: CallerID returned with error on channel 'Zap/2-1'