Clickable link within voicemail emails

This is a VERY simple request:

When a voicemail is forwarded to email, the senders phone number is added in the subject line. However, in most email clients, that’s not a clickable link. Please consider adding that phone number and other information in the body of the email so we are able to simply click it on our mobile devices to return that phone call. To have that, PLUS the audio file of the voicemail, would be invaluable and save a lot of time.

It’s a super simple concept, and should be super simple to do.