iMercury Instant Messenger also does not utilize any intermediary server (such as the traditional instant messaging services - AIM, Yahoo!, MSN, etc.) and, therefore, there is no user ID, password or need to log-on to any IM server in order to determine whether any "buddies" are available for instant messaging. iMercury Instant Messenger utilizes true peer-to-peer technology to establish a direct TCP/IP connection between the two communicating devices. With the iMercury Instant Messenger, anybody with a cell phone number can initiate a "text call" simply by dialing the phone number of the recipient (so long as the recipient also has the iMercury Instant Messenger installed). The constraints of traditional instant messenger buddy lists are eliminated.