In the song, i'm sure that they just 
used a recording and looped it to play 
this riff.. but if your gungho about 
getting this tab under you fingers 
heres what i came up with ... 
see if it works for you if not fix it 
and i'll play your correction... enjoy!!

Chingy (feat. J. Weav) - One Call Away

(main riff)
e--------------------------------7---
b-------0------------------------7---
g------0-0----------4----------4-7---
d-----2---2------4-5--5-4-----5------  
a--2/3-----3--3/5--------5---7-------
e------------------------------------

somewhere in the song when he start to say the line
"she was in a see through thong then i looked at herrr and said....."

e-----------------------------
b-----0----0----0----0--------
g----0----0----0----0---------
d---2----2----2----2----------  
a--3----3----3----3-----------
e-----------------------------

right after the last time you play this part go to then main riff
(main riff)
e--------------------------------7---
b-------0------------------------7---
g------0-0----------4----------4-7---
d-----2---2------4-5--5-4-----5------  
a--2/3-----3--3/5--------5---7-------
e------------------------------------
repeat that throughout and you got it!!