When placing a Real-Time Text(RTT) call, either with RTT to RTT or RTT to TTY, when reading the text being typed by the other party, it does not display in realtime with braille

Description

When placing a Real-Time Text call, once the braille user enters the area displaying what the other party is typing, the text will not update with the newly typed text. The braille user will only be able to read what has been typed before they enter that text area.

Bug First Encountered

iOS 11.2.5

Device(s) bug has been encountered on

iPhone 8

iPhone 7

How often the bug occurs

Always

Workaround

The only work around is to leave the text area and then return to it and scroll to the newly typed text. Alternatively, the user may disable the "send immediately" option under Settings>General>Accessibility>RTT/TTY and toggle this setting to "off". However, it's worth noting that disabling send immediately can sometimes cause issues when calling a TTY such as those systems found at 911 centers.