Problems with DTMF tones
ChrisThompson:
I sent an email to support and sent more detailed information. I haven't heard back yet.
LeftRight:
One more test that you can do is to directly connect your phone to MJ. Are the digits easily recognized by MJ after call is connected?
ChrisThompson:
I have been using the same phone with the same MagicJack for more than a year, and previous to that I had a different phone connected to the same MagicJack for at least 2 years. DTMF tones work just fine when the phone is connected directly.
Note that the DTMF problem occurs when calling over Google Voice as well as using **8 or # to dial out over the Line port, so even taking MJ out of the equation the problem exists. MJ softphone allows me to monitor how the port is recognizing the tones whereas with Google Voice I have no way of knowing what the other end is recognizing, so it's a good diagnostic tool.
RonR:
Just for clarification...
**8 and # do not give a hard-wired/physical connection between the OBi PHONE Port and LINE Port. It's a bridged or logical connection, and I imagine audio, DTMF, etc. are still going through all the normal OBi components as usual. I don't know, but it's possible DTMF is being decoded on the PHONE Port and regenerated on the LINE Port in this scenario.
You can get a hard-wired/physical connection between the OBi PHONE Port and LINE Port by removing power from the OBi. There's a relay that drops out, forcing this connection for fail-safe purposes.
LeftRight:
As RonR said, power off OBi unit will give a physical connection between phone port and line through relay, so double check if you can get same DTMF performance as directly connecting your phone.
Dial # will bypass OBi unit, i.e., NO DTMF detection on the PHONE port and NO regeneration on the LINE port, though there is a A/D, D/A path, and you may tune channel RX/TX gain to see if that make a difference. Ideally, you should see same DTMF performance as you remove power from the OBi ...
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