Dialogic 6.2 Manuale Utente

Developing a Fax Application

November 2009

63

Use the fax.c sample program to send a fax from an external fax 

machine to a channel in your system. Then send the same fax back to 

the same fax machine from the same channel in your system.
1. Prepare channel 1 to receive a fax as you did in the previous 

example. Use the same input filename recfile.ips used to send a 

fax from one channel to another in the same system:

fax -u 1 -r recfile.ips

Channel 1 is now set to receive a fax and is waiting for a ring 

signal.

2. At the fax machine, insert the sample fax in the fax machine and 

call the channel's (channel 1) phone number in the normal way. 

At the tone send your sample fax.
Wait for the selected channel to receive the sample fax. 

3. Send the received fax back to the fax machine:

fax -u 1 -s wphonenum recfile.ips

This time, phonenum is the phone number of the external fax 

machine.
You can examine the structure of the infopkt stream recfile.ips 

before you transmit it back to the fax machine. 

decode recfile.ips