Re: GSM data quality - what does 16khz pulse duration mean?

Looks like you and I have the same device (I presume this was an eBay
purchase). I have a similar problem. I have a Rogers Pay-as-you-go
SIM card installed in the unit, I can place and recieve calls. I am
using the device to control a remote power controller that picks up
after a few rings and utilizes touch-tone for control. I cannot
reliably send touch tones from a landline to the GSM gateway.

The touch tones aren't making it very clearly to the device I have
connected to the Fixed Wireless Terminal. I'm going to see what I can
dig up to improve quality, if I find something I'll write back - if
you find anything, please let me know.

The manual is absolutely terrible - I have no idea what some of the
acronyms are - and I'm good with acronyms. Also - it sounds like the
machine is British or something (the dial tone) - would be nice to
change it to north american.

Best of luck





On Mar 29, 5:51 pm, cindyane...@xxxxxxxxxxx wrote:
I have a "Fixed Wireless Terminal model GW1000BL" which is a device
that takes a SIM chip and supplies dial tone back to any RJ11 device
plugged into it. I am trying to use this terminal as a means to
communicate alarm signals from my home alarm to the central station.
I can get low speed pulse signals (called 4+2 in alarm speak) to go
through - but when I try a higher rate protocol called Contact ID -
the transmission fails. I dont know if the issue is a frequency
limitation in the cell system design (Rogers Canada GSM) or perhaps a
setting on the Fixed Wireless Terminal that could be adjusted to
improve the throughput.

The owners manual for the terminal talks of parameter settings that
cen be changed - but they are all unfamiliar to me. The ones that
seem like they might be of interest include:

ISD Call (Enable/Disable)
Loop Interruption
PR Outgoing Call (Enable/Disable)
16 khz Outgoing Call (Enable/Disable)
16khz Pulse Duration
Dial Time Out
16khz default value
16khz table

Would anyone out there know if any of the above parameters might
improve the data transmission rate for the terminal?

Thanks, Cindy


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