TM Travel World explains how to avoid telephone ticketing fees with Delta when booking partner awards.
Most partners cannot be booked online, and if you ticket over the phone they charge a fee.
But Troy points out that on the web (and only on the web, not by phone) Delta will permit you to hold an award. So hold whatever segments of your trip are avsilable online. That creates a reservation.
Then have an agent update the reservation over the phone with the additional flight segments you need. You can refresh your screen and the reservation right in front of you will show up with the new segments.
Once they’re there, instead of having the agent book the ticket, just purchase the ticket online.. no telephone booking fee. Sneaky, eh?