Alexa's pronunciation, we have set a phoneme, but Alexa does not always pronounce it the way the phoneme describes it. Please try below sample. The first line is the correct way we want Alexa to pronounce the word "recall" but when adding words before and after it she changes her pronunciation. Please check using en-CAN lang/Model.
<phoneme alphabet='ipa' ph="ri.kɔ:l">recall</phoneme>
I can help you find vehicle <phoneme alphabet='ipa' ph='ri.kɔ:l'>recall</phoneme> information