Prior to TelcoMgr 6, TelcoMgr stored the NPA-NXX-LINE data and other phone number fields without any formatting, but the user-windows displayed the phone number with the format as ###-###-####. Therefore, the stored data for the displayed phone number 800-675-2415 was actually 8006752415. It was not possible to enter or import another phone number format, for example (800) 675-2415 was not supported.

Starting with TelcoMgr 6 the NPA-NXX-Line [CIR:Line] field was reformatted so telephone numbers may be accepted in various formats, such as +1 (555) ###-#### or (01) ### ######, plus other international number patterns and emerging ISO canonical formats. The canonical address format is a universal phone number format that is both standardized and widely recognized by many different software systems. The format explicitly identifies the components of a phone number and includes Country or Region Code, Area Code and the subscriber number. The canonical format is +Country/RegionCode (AreaCode) SubscriberNumber. For example, this is how you would enter a number for a subscriber in the United States of America in canonical format +1 (425) 555-0100].