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Dtmf ivr4/6/2023 ![]() The LTE,VoLTE setting allows you enable or disable the ability to make voice calls and still use Mobile Data simultaneously but a side effect has probably aided you which is great. This is due to the convenient way organisations can securely take payments 24/7/365 without the need for human intervention. Oh and as an aside, "LTE,VoLTE Off" makes no difference to the time the tone is transmitted that I can tell. Not only is DTMF masking used when a customer is on the phone to a call agent, as previously mentioned, but it can also be used with IVR systems and is often referred to as IVR Payment Technology. First, go to Tools > IVR Editor and Create IVR Menu named CorrectExt. For more information on how to add or modify actions in an IVR refer to this article. So that means that there are systems out there that require a longer tone length and for that reason I believe that the length of time you press the button should result in the tones being transmitted for that same length of time rather than being hard coded to be limited to 0.5 of a second. This can help a caller verify the numbers they pressed and uncover DTMF problems. ![]() Despite the iPhone earpiece feedback seeming to indicate a very short tone when you press a number key on your iPhone, the reality is that the length of the tone that actually goes to line is in fact close to 0.5 of a second which I would have thought would be adequate. ![]() Many other use cases for DTMF tones have also emerged - from booking appointments to checking bank balances to changing language on a phone call. As a matter of interest I did a test by calling another phone nearby and then listening to that phone while I pressed various numbers on the iPhone. IVRs, or Interactive Voice Response systems allow dialers to navigate without tying up an operator.
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