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Hello friends, tell me what is Number exchange? Colton 03-October-2007 06:33:21 PMComments Usually referred to as Pots-PSTN number exchange system. Posted by sagitraz The PSTN number exchange system Posted by waqasahmad it is basically the Pots-PSTN number exchange system Posted by HamidAliKhan NXX. Usually corresponds to the prefix in the additional POTS-PSTN telephone numbering system. Posted by elie |
Posted: 03-October-2007 06:48:16 PM By: elie NXX. Usually corresponds to the prefix in the additional POTS-PSTN telephone numbering system. | |
Posted: 29-December-2008 10:46:00 AM By: HamidAliKhan it is basically the Pots-PSTN number exchange system | |
Posted: 02-March-2009 02:27:05 AM By: waqasahmad The PSTN number exchange system | |
Posted: 16-September-2009 09:01:35 AM By: sagitraz Usually referred to as Pots-PSTN number exchange system. |