Off ramp Fax

Unanswered Question
Jun 29th, 2009
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Hi All,

Recently i had one POC for FAX over IP using 2821 + E1 PRI.

Both On ramp and off ramp fax are working fine , but for off ramp fax with normal TIFF attached file its not transmitting to the other end . I have gone through the docs and came to know Gateway will only support TIFF-F files for off ramp fax. So any applications or converter TIFF-F conversion.

Thanks and regards

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ldardon Fri, 07/03/2009 - 12:05
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There are many different options and ways to use TIFF to encode data. Cisco T.37 gateways can take a TIFF attachment and convert it to a fax for off-ramp applications. However, the TIFF format must conform to profile F (TIFF-F) which is the extended black-and-white fax mode. TIFF-F supports MH, MR, and MMR encodings.

sergesandler Tue, 07/14/2009 - 04:00
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It is not as straightforward, - not all TIFF-F compliant files are cisco compatible, e.g. TIFF files saved in Windows Fax Console are not cisco compatible.

One of compliant commercial solutions for Windows is facsBridge T37FSP from


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