How to buy additional handset cords?

[jolouis]

I think you're trying a little too hard there... why not just get a generic one and "unwind" the first few inches so that it traces through the retaining clips/path on the phone body?

Or, if you know you are going to use a lot of them, contact the vendor that you purchase your Yealink equipment from and make a special request to purchase say 100 or 200 at a time. For less than that qty it's not even worth a vendor's effort, but if you buy in sufficient volume anything is worth doing...