She can initiate the call from anywhere, and based on the description given she still needs to go over to and pick up her phone to complete the interaction.
I agree the ability to add arbitrary commands into Echo is a great feature, reminds me of ifttt quite a bit, which is usually a bit clunky yet very powerful.
Yeah, that's one quirk I wish didn't exist. If I could make the Echo work as a speakerphone of sorts, that'd be amazing. That's one of my two asks (ability to get access to the microphone), the other being server-side interaction initiation but I recognize the massive potential for abuse of both so I'm not holding my breath.
I agree the ability to add arbitrary commands into Echo is a great feature, reminds me of ifttt quite a bit, which is usually a bit clunky yet very powerful.