This should already be in effect, let me know if otherwise :).
________
500
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This should already be in effect, let me know if otherwise :).
________
500
Wow, thats an interesting lesson for today. They should have shoved all those area codes in the 900 range to keep it easier for muts like me to remember. Why are there gaps in the codes ?
http://www.areacodehelp.com/where/wh...rea_code.shtml
Well, it's up to each country to control their internal phone structure and rules. Some just allow grossly excessive tariffs on us foreigners. _We_, the U.S.A. that is, is not in a position to dicatate to them. In any case blame the plan on AT&T! Here's the reference for many good things about our numbering system:
http://www.nanpa.com/
If you want to use all three wild card symbols (X for single digit 0-9, * for one or more digits, % for 0 or more digits (or to enclose a pattern to look for)), that's fine. In that case, your radio button should give the following two choices: "Simple domestic call rules/blocking" (only wild card allowed is X; all entries must be 10 characters in length), or "Advanced call rules; international call rules" (all three wild cards allowed, length of pattern string is not fixed at 10 characters). On the "Simple" call rule page, you'd include information that each entry is ten characters, X matches 0-9, and you'd provide clearly written examples such as the following:
- 919XXXXXXX blocks ALL CALLS from 919 area code.
- XXX249XXXX blocks ALL CALLS from ALL AREA CODES, where middle 3 numbers are 249.
- XXXXXX1234 blocks ALL CALLS from numbers ending in 1234.
You could write similar 'help' prompting for the advanced page as you did in your message above.
The other concern I want to throw your way is the watch-out that you should not allow users to block 911 dialing, and that return-calls from a PSAP, such as if my 2 year old dials 911 and hangs up, should override any custom call routing. I have a few thoughts on that--check your PMs.
I don't think you can block these area codes. My understanding is that the area codes are completely valid, and there are many "normal" lines in these codes. The rates to these area codes are not necessarily high. It just happens that these area codes happen to be used by the scammers as well.