Where? I went to voice.google.com, and there was no option to call a number, only SMS. My friend, an avid Google fan, told me to go there. Then he said that it's actually not there and only on gmail.com.
You should read the post to which you responded for an answer to your question.
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Me too! I'm no longer waiting 20 seconds on my iPad 3 for it to respond to tapping on a picture.
Looks like it only took an hour to get back to being slow. Bummer.