ATech Machine LIBRA-02 M Technické informace stáhnout pdf (Strana 486)

Transmitting a Fax from Asterisk

To transmit a fax from Asterisk, you must have a TIFF file. How you generate this TIFF

is important, and may involve many steps. However, from Asterisk’s perspective the

sending of a fax is fairly straightforward. You simply run the SendFAX() dialplan appli-

cation, passing it the path to a valid TIFF file:

exten => faxthis,1,SendFAX(/path/to/fax/file,d)

In practice, you will normally want to set some parameters prior to transmission, so a

complete extension for sending a fax using Digium’s Fax For Asterisk might look

something like this:

exten => faxthis,1,Verbose(2,Set options and transmit fax)

; some folder where your outgoing faxes will be found

same => n,Set(faxlocation=/tmp)

; In production you would probably not want to hardcode the filename

same => n,Set(faxfile=faxfile.tif)

same => n,Set(FAXOPT(headerinfo)=Fax from ShiftEight.org)

same => n,Set(FAXOPT(localstationid=4169671111)

same => n,SendFax(${faxlocation}/${faxfile})

File Format for Faxing

The real trick of sending a fax is having a source file that is in a format that the fax

engine can handle. At a basic level, these files are known as TIFF files; however, the

TIFF spec allows for all sorts of parameters, not all of which are compatible with fax

and not many of which are documented in any useful way. Additionally, the types of

TIFF formats that spandsp can handle are different from those Digium FFA will handle.

In the absence of one simple, clear specification of what TIFF file format will work for

sending faxes from Asterisk, we will instead document what we know to work, and

leave it up to the reader to perform any experimentation required to find other ways to

generate the TIFF.

Digium’s Fax For Asterisk Administration Manual documents a process for converting

a PDF file into a TIFF using commonly available Linux command-line tools. While

kludgy, this method should allow you to build Linux scripts to handle the file conver-

sion, and your users will be able to submit PDFs as fax jobs.

You will need the ghostscript PDF interpreter, which can be installed in CentOS by the

command:

* One format we tried was using the Microsoft Office Document Image Writer, which offers “TIFF-

monochrome fax” as an output format. This seemed too good to be true, which is exactly what it turned out

to be (neither spandsp nor Digium FFA could handle the resulting file). It would have been ideal to have

found something common to Windows PCs that could be used by users to “print” an Asterisk-compatible

TIFF file.

450 | Chapter 19: Fax

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Whirlpool MT8066SE Manuale Utente (48 pagine)

Marchio: Whirlpool | Categoria: Microwaves | Dimensione: 1.76 MB |

Indice

Use And Care

Table of Contents

A Note to You

Microwave Oven Safety

PRECAUTIONS TO AVOID

POSSIBLE EXPOSURE TO

EXCESSIVE MICROWAVE ENERGY

Installation Instructions

GROUNDING INSTRUCTIONS

Getting to Know Your

Microwave Oven

Glass turntable

For the best cooking results

Radio interference

Testing your microwave oven

Operating safety precautions

Electrical connection

Microwave oven features

Control panel features

Interrupting cooking

Audible signals

Setting the clock

Using the minute timer

Using ADD MINUTE

Using Your Microwave Oven

USING YOUR MICROWAVE OVEN

2. Set the cooking time

3. Set the cook power

(cooking time counts

(example for 50%

(Start? indicator light

Using BAKED POTATOES

4. Start the oven

Using BEVERAGE

Using POPCORN

Using FROZEN ENTREE

Using DEFROST

Defrosting tips

Using REHEAT

Reheating tips

Using BREAKFAST

BREAKFAST

Using VEGETABLES

VEGETABLES

Caring for Your Microwave

Cooking Guide

Arranging food

Using aluminum foil

Cooking you should not do in

COOKING GUIDE

Questions and Answers

Troubleshooting

TROUBLESHOOTING

Requesting Assistance or

Authorized Service Centres

WHIRLPOOL

Microwave Oven Warranty

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ATech Machine LIBRA-02 M Technické informace Strana 486

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Whirlpool MT8066SE manuali

Whirlpool MT8066SE Manuale Utente (48 pagine)

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