When using Sonic VOIP app, calling service doesn't "hear" keypresses

[markjfs]

There's an old topic in the forum related to this, but it seemed tied to physical phones.

I was in Europe for a couple weeks using a data only eSIM on my cellphone and needed to "approve" a CC charge. The process required giving the bank a phone # to call. I had them call my Sonic landline and then answered the call via the voip app. I then got an automated request to hit Zero on the keypad. I did this and tried multiple times, but the calling service never "heard"/reacted to my keypress.

Is there a way to fix this?

Thanks

[pdonahue]

For what it's worth, I've had the same experience.

[ngufra]

if the app does not do it and has no options to do it, you can use a sandalone DTMF generator, or use an DTMF generator app (maybe using a second phone)