Does anyone know of a TTS app that can speak during a phone call made on the same iPhone?

I am interested to see if this works on any model but specifically for an iPhone 4 since I currently have a client with that model who needs this ability.  I have a feeling newer models allow for more simultaneous app usage but I hope her older model is not a problem.

Thanks!!!

Sincerely,

Amy Roman, MS, CCC-SLP
Augmentative Communication Specialist

AmyandpALS.Com
Pinterest.com/AmyandPALS

Forbes Norris ALS Research and Treatment Center
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