Patent ID: 7395080

Claim:
A method for processing a call in a wireless communication device comprising the steps of: receiving an incoming call message; reading a push to talk (PTT) indicator in the message at a main control module before sending the incoming call message to a user interface module; sending the PTT indicator from the main control module to the user interface module in a first processing pass; sending the remaining incoming call message from the main control module to the user interface module in a second processing pass; after reading the PTT indicator, sending a PTT signal indicative of the PTT indicator to the user interface module; determining whether the incoming call message relates to a PTT call; writing a PTT bit to yes or high, responsive to the step of determining; combining the incoming call signal and the PTT bit into a single combined alert message, and wherein the steps of sending a PTT signal and sending an incoming call signal are performed by sending the combined alert message to the user interface module.