The Wall Street Journal reports that Japan’s biggest carrier by number of subscribers, NTT DoCoMo and Apple still negotiating over iPhone agreements. According to report NTT DoCoMo have not yet got iPhone because it wants to pre-install some of its own applications such as its popular e-wallet and mail services on the device, and the carrier is also concerned over Apple’s unit volume commitment demands.

“We haven’t given up our hope of introducing the iPhone” but Apple typically asks carriers to commit a large volume, Ryuji Yamada, president and chief executive of Japan’s biggest mobile operator by subscribers, told Dow Jones Newswires in an interview Tuesday.

“If the introduction of the iPhone results in the mass majority of our products occupied by the iPhone, then that’s a scenario that’s difficult to us to swallow.”

As expected, Apple wasn’t immediately reachable for comment about talks with NTT DoCoMo.

Currently, SoftBank and KDDI offers Apple Inc’s iPhone in Japan.