Answered in order of easiest answer to most complex: > Does it start with a 0? No. I've never encountered any US number requiring a prefix of "0" nor a US number being written that way.
> US numbers are fixed lenght 11 digits? The USA is in the North American Numbering Plan (NANP). This includes USA, Canada, much of the Caribbean (Cuba, Jamaica, Barbados for example), some US territories in the Pacific (Guam, American Samoa). The NANP's "Country Code" is 1. In the USA and Canada (I think the entirety of the NANP) this is followed with a 3 digit area code (National Destination Number) followed by a 7 digit subscriber number. > What is the usual representation of a 'local' US number? There is no consistent answer. Consider that the oldest phone network is in the USA, and the unplanned initial growth and many historic regional governing bodies it varies massively. It has also changed greatly over time. GENERALLY speaking people will use the 11 digit number or the 10 digit number (without the "1" country code), but there's not a lot of rhyme or reason as to which is preferred in one case vs another. -----Original Message----- From: Benoît Panizzon via sr-users <[email protected]> Sent: Friday, May 31, 2024 2:52 AM To: Pavan Kumar via sr-users <[email protected]> Cc: Pavan Kumar <[email protected]>; Benoît Panizzon <[email protected]> Subject: [SR-Users] Re: Assistance Needed: Converting 11-Digit US Numbers to E.164 in Kamailio CAUTION: This email originated from outside the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hi Kumar > Before writing the code, I want to know if there is already a solution > to this problem in one of the modules, so that I won't reinvent the > wheel. US numbers are fixed lenght 11 digits? What is the usual representation of a 'local' US number? Does it start with a 0? I do this (to translate Swiss local numbers to e164): $var(check_number) = "012 345 67 89" # local number example, use $rU or $fU or whatever you want to translate. route(TRANSLATE_TO_e164); $rU = $var(result); route[TRANSLATE_TO_e164] { $var(result) = 'invalid'; $var(check_number) = $(var(check_number){s.rmws}); # Remove spaces if ($var(check_number) =~ "^\+") { $var($result) = $var(check_number); # Already e164 } else if ($var(check_number) =~ "^00") { # international number in local notation replace 00 by + $var(result) = "+" + $(var(check_number){s.substr,2,0}); } else if ($var(check_number) =~ "^0") { # Swiss number in local notation replace 0 by +41 $var(result) = "+41" + $(var(check_number){s.substr,1,0}); } } And of course I have a corresponding TRANSLATE_TO_LOCAL to display numbers to the customer in a format they are used to in Switzerland. -- Mit freundlichen Grüssen -Benoît Panizzon- @ HomeOffice und normal erreichbar -- I m p r o W a r e A G - Leiter Commerce Kunden ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 Pratteln Fax +41 61 826 93 01 Schweiz Web http://www.imp.ch/ ______________________________________________________ __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to [email protected] Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to [email protected] Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
