The mandible is a U-shaped bone. It is the only mobile bone of the facial skeleton, and, since it houses the lower teeth, its motion is essential for mastication. It is formed by intramembranous ossification. The mandible is composed of 2 hemimandibles joined at the midline by a vertical symphysis.
1 For example, AT&T charges $23 for a home residential line that includes a few additional basic features such as caller ID, call waiting and voicemail. 2  Home phone service plans that include local and long-distance calling cost $30-$45 per month.
ATT know there is a problem and trying to fix the issue, 1.5 hours later and still no service. My AT&T service is down, I cannot get any texts or calls in 78702 area. I got no service in Austin, hope this gets resolved quickly. NO ATT service in 75077.