[asterisk-users] Problem with ReceiveFax

[Larry Moore]

On 2/03/2012 11:48 PM, Administrator TOOTAI wrote:
> Le 02/03/2012 16:32, Ishfaq Malik a écrit :
>> I'm trying to get an inbound fax written to a tiff file but I'm having
>> major problems. Using asterisk 1.8.7.0 on CentOS 5.6
> [...]
>> [2012-03-02 15:11:33] WARNING[4628]: res_fax.c:1508 
>> receivefax_t38_init: channel 'SIP/588-00000007' refused to negotiate 
>> T.38
>> [2012-03-02 15:11:33] WARNING[4628]: res_fax.c:1529 
>> receivefax_t38_init: Audio FAX not allowed on channel 
>> 'SIP/588-00000007' and T.38 negotiation failed; aborting.
>> [2012-03-02 15:11:33] ERROR[4628]: res_fax.c:1734 receivefax_exec: 
>> error initializing channel 'SIP/588-00000007' in T.38 mode
>
> The fax machine connected to SIP/588 doesn't accept T38
>

Hence you could enable the fallback (f) option to use G711;

ReceiveFAX(${FAXFILE},f)