Because the network settings need resetting, or you have a faulty antenna. Most likely the former. This is a bug that seems to be well known, and seems to occur on some networks more than others. Try...
The question is not really who can accept, but who can legally be served.The answer depends on your state statutes, and what is being served. In many states any person over a certain age who resides...
May be which network connection you are using in your mobile Phone (e.g. IDEA, AIR TEL, RELIANCE etc.) that services are not working properly at that time, So your mobile phone is showing NO SERVICE....
For state prosecuted offenses: Circuit (or District) Court > Court of Appeals > State Supreme Court (and if a Constitutional question is involved) > US District Court > US Court of...