Method and system for transmitting a data communication from a calling communication unit associated with a wireless communication system to a called communication unit
 The method includes establishing a first data channel (16) between the calling communication unit (44) and the wireless communication system (40), the first data channel configured to receive and transmit the data communication (21); after establishing the first data channel and before a second data channel (22) has been established between the wireless communication system and the called communication unit (84), receiving by the calling communication unit a message (19), the message indicating that the second data channel has been established; and based on the message, the calling unit transmitting the data communication via the first data channel. 
Motorola, Inc.
H H
H04W H04W
inventional additional
Steven T. Timothy J.
Barrett Muths