It can. At home it definitly does. Once you get a PBX or KSU, you havemore control over the exstensions. If you order one number for the main site and you have extensions that you have to dial to get to the individual phones from the automated attendant, then you can make those extensions what ever you want. And if you have DID, the Telco may give you a block of numbers, say 1000-1099, you can either use thos as your extension such as (nnn) nnn-1000 or you can map those into your internal extensions. So a customer outside may call you at (nnn) nnn-1000, but your internal co-workers can get to you by dialing your extension number which may be x3546. You would map the DID number to the extension on the PBX, like you do in NAT.
""John Tafasi"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > So extension part of a phone numer does not come from telco, is that corect? > > Thanks > John Tafasi > > ""VoIP Guy"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > DID is the "public address" of voice, but you may still need to map over > DID > > numbers to your internal extensions. Otherwise you need an auto-attendant > > that asks you to enter the extension of the person you are trying to > reach, > > which could be considered the NAT of voice, since you need a box to route > > your call to the proper person. > > > > > > ""John Tafasi"" wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Hello Group, > > > > > > > > > When designing an enterprise voice network, is it normal practice to > give > > > phone devices private phone numbers that have to be translated to a > valid > > > phone number when calling another external phone number, that is to say, > > > similar to IP NAT translation? Does any body know about a good reference > > > that could explain this design issue? > > > > > > > > > > > > Thanks > > > > > > John Tafasi Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=26205&t=26021 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
