How to change teltone phone number through RS-232?

[tunmin]

I am using automated version teltone telephone line emulator(TLE). I got a problem on writing a VI program to change a phone number of each line in TLE.

[Zvezdana S.]

I just searched the web and was unable to find anything helpful. You may want to contact the manufacturer of your hardware to see if they have any LabVIEW drivers available. If not, you may have to develop your own driver. You can visit www.ni.com/idnet to find some very helpful resources for developing your own driver.
Zvezdana S.

[phasm]

Are you still interested in TLE programming and automation?

There is no line number on the tle in the automated test mode since you perform line monitoring and connection based on the detected digits.
e.g. you've got reports from com port that someone dialed 1 - 0 - 4 on the first line. Than you should issue command to TLE to connect 1-st and 4-th line.
To change number assigned to the 4-th port 104 to 5554  just change this behaviour and make switch if "5554" sequence was observed (and reported by firmware through com port).
This can be done in script uploaded to the TLE.

If you have teltone TLE 5  (TLE-A-01) please contact me - I know some tricks with it und have some interesting knowledge.

[Steve SO]

Hi Phasm

I also face the problem for Teltone TLE using by LabVIEW. Basically, in the TLE instrutment driver, it also set the command or action to the TLE(i.e Input). However, how about to receive the signal from TLE. For example, how to detect the number of rings?? What is the voltage or dbm in the current status??

Thanks

Regards,
Steve

[phasm]

Hello Steve.

I'm not familiar with LabView. As I know there is Audio output on the front panel of the TLE. You can issue TC_CONNECTAUDIOPORT to the TLE to enable signal output from specified line to this audio jack. TLE should be in "automated test mode".
I suppose that there is no possibility to receive signal from the TLE using COM port due to throughput limitations (9600 bit).
Also there exist TC_REQLEVEL command. It returns "TM_SIGLEVEL message, including a value from 0-4294967295 that must then be processed through the TfSigLevel function to yield either a voltage or dB value." (TLE-TEST User's Manual)

Number of rings can be determined from ring pattern (cadence) and ringing time measurement. I.e. if ring signal has cadence 0.5s on, 0.5s off then you will get 4 rings in 4 seconds.

Regards,
Phasm.