While the unit is monitoring him, Stringer gets a call requesting a meeting. He changes the SIM card in his cell phone so that he can call back on another number. Shamrock then calls Bodie to tell him a meeting has been arranged. This gives the unit their baseline set of call data. Next Stringer uses his business number to call Colvin on his cell phone and Lester notes the call. He checks with McNulty, who recommends they wait and see what the connection gives them.