If you mean DC: direct connect (walkie talkie) , It should be ready to go ...if it;s activated on your acount.
You have to have to other person's DC number, it can be found on menue> my info>Direct connect.
That phone does not have Direct Talk. Only some phones have the Off Network Walkie Talkie
Here is what I show as features:
Nationwide Boost Walkie-Talkie Boost™ Multi-Media Messaging and Text Messaging Boost™ Wireless Web Large Color Screen Java