Why have Only IPtext on IP Networks
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IP not good at transporting TTY
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Dropped packets and distortion when compression is used
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QoS is variable and cannot be guaranteed in this competitive and loosely controlled environment.
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Never know what a hotel or motel will contract with for phone service
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Allows low-cost / near-no-cost support for IPtext Receive on all phones with a display.
VERY IMPORTANT ABILITY FOR EMERGENCIES -
Allows low-cost / near-no-cost support for IPtext Send and Receive
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on all phones with display and keyboard
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or via a dial-up 'tone-relay' function.
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