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A comment on Japan plans to create 10B 14-digit phone numbers with 5G era approaching. Parent comment

Re:Japan plans to create 10B 14-digit phone numbers with 5G ... by neilalexander on Wednesday May 15, 2019 @12:13PM (#19920860)
Incidentally, this is already possible with SIP, which is behind most standardised VoIP signalling. In particular it allows for federation too.
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