Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!netsys!vector!nobody From: westmark!dave@rutgers.edu (Dave Levenson) Newsgroups: comp.dcom.telecom Subject: Re: 1+areacode Message-ID: Date: 3 Feb 89 02:47:17 GMT Sender: chip@vector.UUCP Lines: 37 Approved: telecom-request@vector.uucp X-Submissions-To: telecom@bu-cs.bu.edu X-Administrivia-To: telecom-request@vector.uucp X-TELECOM-Digest: volume 9, issue 43, message 3 In article , tanner@ki4pv (Dr. T. Andrews) writes: > The explanation that the "1+" enable distinguishing between area > codes and exchanges is nice, but not entirely clear. > > Consider North Jersey. One site I call there has an exchange of 615. > Another site I call has an area code of 615. (From here, no problem. > I supply the area code before the 615 exchange.) > > In NJ but out of the local area for dialing exchange 615, what happens > when the machine dials 1+615 ... ? Does it ring through after 4 more > digits, or does it wait for 7 more? (Does it have a time-out in case > only 4 follow?) A reply from North Jersey: >From anywhere in the 201 (North Jersey) area code, to anywhere else in the 201 area code, we dial only 7 digits. So if I were calling that site from here, I'd dial 615-xxxx, even though it's a toll call to Middletown from Warren. If I were trying to call area code 615, I would have to dial 1+615-xxx-xxxx. For an operator-assisted call to Middletown, NJ, I'd dial 0+201+615+xxxx. There is nothing ambiguous, and nothing requiring a time-out. If it begins with 1 or 0, it has ten more digits. If it begins with 2-9, it has six more digits. This is the dial-plan recommendation for all of the North American numering plan --- but some places don't do it yet, because they don't need to, yet. In most of the United States, 1+ is permitted, even where it is not required, for all area-code calls. (What is going away is 1+7 digits for intra-npa toll calls, as that _is_ ambiguous.) -- Dave Levenson Westmark, Inc. The Man in the Mooney Warren, NJ USA {rutgers | att}!westmark!dave