Hi I have a problem can u help me? Using a modem I am dialing to telephone .I am using AT command wirting through the serial port using java Comm API and RXTX in Linux plat form ,the phone is ringing ,but I am unable to identify wether the receiver is picked up or not. I am looking for a tool or software which can perform the following functionalities. 1)Detecting when the telephone receiver is picked up 2)Trasfer the line (which modem is connected )to some other line. 3) Indicating if the line is busy or engaged. I will be much thankfull if u can help me. Thanks in advance Thasli
check the event SerialPortEvent.DATA_AVAILABLE: i'm sure you're already doing that to know its ringing to begin with. based on the incoming data you can deal with those issues, not sure about trasferring, i haven't done that, but it should the same process
3) "BUSY 7 Busy signal detected" so you can check if( incomingData.startsWith("BUSY"))
This is not a specifically Java problem but how the modem behaves with the AT command set. Its been a while, so I am rusty on the commands to use. A complete set of Hayes AT commands are freely available all over the net. To tell if a modem is currently connected, you detect a carrier, see ATOx (where x is a number) To transfer the line, return the phone to a command state and then send it the appropriate Tone signals. (Phone is returned to command state through ATOx as above) Also, see ATXx and ATWx commands for result codes and extended result codes for detecting such things as the carrier, busy signals, or related error conditions. here is a link that can help: http://vk.pp.ru/docs/hayes/00000110.htm have fun.
Originally posted by thasli: Hi I have a problem can u help me? Using a modem I am dialing to telephone .I am using AT command wirting through the serial port using java Comm API and RXTX in Linux plat form ,the phone is ringing ,but I am unable to identify wether the receiver is picked up or not. I am looking for a tool or software which can perform the following functionalities. 1)Detecting when the telephone receiver is picked up 2)Trasfer the line (which modem is connected )to some other line. 3) Indicating if the line is busy or engaged. I will be much thankfull if u can help me. Thanks in advance Thasli
Commands to the modem are written to the serial port which the modem is connected to as lines of text starting with AT, so look at the modem docs, not the serial port docs. (Deja-vu - I remember typing those AT commands by hand in "terminal" programs.) Bill
but how do you write a command . Are we not suppose to use the ComportEvent interface commands ? Please explain . It would abe a great help to me
Originally posted by William Brogden: Commands to the modem are written to the serial port which the modem is connected to as lines of text starting with AT, so look at the modem docs, not the serial port docs. (Deja-vu - I remember typing those AT commands by hand in "terminal" programs.) Bill
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