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Chunghwa Telecom to invest US$3.7-4.0 billion in replacing PSTN with NGN
Kaddy Chung and Irene Wang, Taipei; Adam Hwang, DIGITIMES 0

Chunghwa Telecom (CHT) on April 12 indicated that it plans to upgrade its infrastructure by replacing its existing PSTN (public switched telephone network) with a completely digital NGN (next-generation network) based on IP (Internet Protocol), with...

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