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E.164 is an international numbering plan for public telephone systems where each assigned number contains a country code, a national destination code, and a subscriber number. There can be up to 15 digits in an e.164 number. A complete e.164 number is designated by a leading + symbol. Two examples of e.164 numbers are +16054721233 and +4930220005020. When Peeredge Switches are is configured to support e.164 dialing , it alleviates the need to include an International Direct Dialing (IDD) prefix in the dialed number.
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Note If an e.164 dial pattern is used, then all numbers in all relevant SIP headers (RURI, From, To, PAI, Contact, Diversion, etc.) in all inbound and outbound calls should be properly formatted as e.164 numbers.
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