How to Pull Out Your Phone on GTA IV
- 1). Press "Up" on the directional pad to pull out the phone on the PS3 version. Press "X" to answer an incoming call.
- 2). Press "Up" on the D-pad to access the phone on the Xbox 360 version. Use "A" to answer a call.
- 3). Press the "Up" arrow key to access the phone in the PC version at any time.
Source...