RTT suddenly appearing in a phone call


Nov 13, 2020
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Hi all.
Just wondering if anyone else is seeing this? Since this morning when I’m in a call I am seeing a RTT icon in the phone screen. When you tap it you can send text while in the call. I was in a call with an Android friend.

I know what RTT is , but it is not and has never been enabled in the accessibility settings. Like I said , just showed up today. I’m wondering if something on the Android side suddenly changed or with the carrier.

Anyone else seeing this ?