Good morning, excuse me for my english, but i'm a italian boy. 
I'm a developer for a "Uzed@ Web Agency", locate in Catania, Sicily, Italy. 
I have programmed a Web-System based with hylafax and PHP. 
My problem i this: 
I have two modem, one on ttyS0 end one on ttyS4.... 
The configuration request is: 
ttyS0 ----> Only SEND 
ttyS4 ----> Only RECEIVE 
I follow the istruction on the your manual and a have star the command: 
faxmodem ttyS0 
faxgetty ttyS4 
After a start this command, the state of modem ttyS0, after send the modem, is blocked in "Waiting for modem to come ready"... 
This procedure is ok???? Do you help me? 
How to have thie configuration correctly?? 
ttyS0 ----> Only SEND 
ttyS4 ----> Only RECEIVE 
Please request HELP.... 
Good morning, and thank for the reading...