Any ideas on this? This has always worked in the past until we got this new customer and his new fax machine. Faxing from my machine works fine. But faxing from his gives this error. I can't imagine why his fax machine would be causing frame errors. -- Redirecting Zap/4-1 to fax extension -- Executing Macro("Zap/4-1", "fax-handle|7133950500|2815692740|Y") in new stack -- Executing Answer("Zap/4-1", "") in new stack -- Executing NoOp("Zap/4-1", "7133950500") in new stack -- Executing NoOp("Zap/4-1", "2815692740") in new stack -- Executing NoOp("Zap/4-1", "Y") in new stack -- Executing Wait("Zap/4-1", "1") in new stack -- Executing Set("Zap/4-1", "FAXFILE=/var/spool/asterisk/fax/1118774656.6972.tif") in new stack -- Executing RxFAX("Zap/4-1", "/var/spool/asterisk/fax/1118774656.6972.tif") in new stack Jun 14 13:44:21 WARNING[14277]: chan_zap.c:4464 zt_write: Cannot handle frames in 2 format Jun 14 13:44:21 WARNING[14277]: file.c:565 ast_readaudio_callback: Failed to write frame -Matthew