Thanks @flight of ideas, @Mr Foster, and @DefCon Dumb for info help
Here's a link to the five second audio track if you want to play along at home
I've managed to isolate the DTMF tones as much as possible (Not an expert) using Audacity spectrographs:
Clean it up a bit and you get this:
Phone dial tones are made up of paired frequencies, two lines. Fill in the "ghosts" for the tones you can actually hear and you get this:
Those first three pairs are 613, or the Ottawa area code. These first three were so clear that it inspired me to go over the rest with much greater effort.
You match the freqs of the spectra lines with the DTHF tones (You can find it on wikipedia) and you get this:
Now with the first two "triples" I am reasonably sure because of the pacing that they are (613) and 415. Of the last four numbers I can only find 3 8 0. So far I've been lucky that they've all alternated clearly but with the last four numbers the "pacing" is off which could be from a fat finger sliding up or down, repeating a key, etc.