Definition of mandible. 1  1a : jaw 1a; especially : a lower jaw consisting of a single bone or of completely fused bonesb : the lower jaw with its investing soft partsc : either the upper or lower segment of the bill of a bird.
Using other AT&T Payment Options. 1  1. Pay your bill via the automated phone system. Dial 1-800-288-2020 to access the 24 hour-a-day telephone customer service system. 2  2. Speak with a customer service representative. Once you have verified your phone number, the phone system will ask you what you would like to do.
Some cars may have 3 or 4 types based on engine size. Use the ATRA transmission look up tool to find out what kind of transmission you have.This'll come in handy when you look for service information. To find the ATRA Member shop near you, click the Shop Finder link.If you have any questions you can e-mail them to ATRA's Technical Department through the Technical Services page or call 1-866-GO-4-ATRA (1-866-464-2872). More Automotive 101 articles available.o find the ATRA Member shop near you, click the Shop Finder link. If you have any questions you can e-mail them to ATRA's Technical Department through the Technical Services page or call 1-866-GO-4-ATRA (1-866-464-2872). More Automotive 101 articles available.