Wireless technology allows a user to have a phone conversation in the middle of a supermarket and or while driving on the highway. Wireless networks have limits and moving to the edge of coverage area can mean losing the signal. Sometimes, wireless signals are weak and abruptly end conversations. Improving wireless reception isn’t always possible, but sometimes a few minutes can boost the signal and stop the aggravation that comes with a low signal.
Charge the battery and make sure it stays charged. A low battery can make reception worse.
Change positions. Cell phone calls bounce from tower to tower, so moving your position even slightly can change towers and improve reception.
Move outside away from tall buildings and trees that can get in the way of a signal to improve reception -- if moving around inside doesn't help. Large buildings and trees can interfere with cell reception.
Hold the phone upright rather than perpendicular. Cell phone antennas are made to be used in the upright position and work best when held straight.
Change network providers if getting good reception on a regular basis is a problem. Some cell phone providers get better coverage in different areas.