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.
Basic phones only have a few options. The $45/month plan includes unlimited data, with the first 2 GB at 3G speeds. The $25 plan does not come with data but you can purchase 50MB package for $5, or pay-per-use at the rate of $0.01/KB.The per day plan and the 10 cents/minute plan both only allow for pay-per-use data at the rate of $0.01/KB.The data plans can be a little complicated, and really hinges on knowing how much data you need.asic phones only have a few options. The $45/month plan includes unlimited data, with the first 2 GB at 3G speeds. The $25 plan does not come with data but you can purchase 50MB package for $5, or pay-per-use at the rate of $0.01/KB.