Debian+iaxmodem+hylafax unable to receive faxes error

hi all im unable to receive a fax here is the log

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Jun 10 16:27:39.40: [ 994]: SESSION BEGIN 000000007 300302118007994
Jun 10 16:27:39.40: [ 994]: HylaFAX ™ Version 6.0.5
Jun 10 16:27:39.40: [ 994]: DynamicConfig: bin/dynconf.php "/dev/ttyIAX0"
Jun 10 16:27:39.45: [ 994]: <-- [4:ATA\r]
Jun 10 16:27:43.18: [ 994]: --> [7:CONNECT]
Jun 10 16:27:43.18: [ 994]: ANSWER: FAX CONNECTION DEVICE '/dev/ttyIAX0’
Jun 10 16:27:43.18: [ 994]: RECV FAX: begin
Jun 10 16:27:43.18: [ 994]: <-- data [32]
Jun 10 16:27:43.18: [ 994]: <-- data [2]
Jun 10 16:27:44.14: [ 994]: --> [7:CONNECT]
Jun 10 16:27:44.14: [ 994]: <-- data [23]
Jun 10 16:27:44.14: [ 994]: <-- data [2]
Jun 10 16:27:44.88: [ 994]: --> [7:CONNECT]
Jun 10 16:27:44.88: [ 994]: <-- data [13]
Jun 10 16:27:44.88: [ 994]: <-- data [2]
Jun 10 16:27:45.46: [ 994]: --> [2:OK]
Jun 10 16:27:45.46: [ 994]: <-- [9:AT+FRH=3\r]
Jun 10 16:27:51.93: [ 994]: --> [2:]
Jun 10 16:27:51.93: [ 994]: --> [10:NO CARRIER]
Jun 10 16:27:51.93: [ 994]: MODEM No carrier
Jun 10 16:27:51.93: [ 994]: <-- [9:AT+FRS=7\r]
Jun 10 16:27:51.94: [ 994]: --> [5:ERROR]
Jun 10 16:27:51.94: [ 994]: MODEM Command error
Jun 10 16:27:51.94: [ 994]: Failure to receive silence (synchronization failure ).
Jun 10 16:27:51.94: [ 994]: RECV FAX: Failure to receive silence (synchronizati on failure).
Jun 10 16:27:51.94: [ 994]: RECV FAX: end
Jun 10 16:27:51.94: [ 994]: Failure to receive silence (synchronization failure ).
Jun 10 16:27:51.94: [ 994]: SESSION END

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what am i doing wrong ? cheers