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ISDN is based on the concept of __________

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ISDN is based on the concept of __________

(a) SS7

(b) CCS

(c) ARDIS

(d) CDPD

I have been asked this question in an interview.

Enquiry is from Integrated Services Digital Network (ISDN) topic in section Wireless Networking of Wireless/Mobile

1 Answer

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Best answer
Right option is (b) CCS

The best explanation: ISDN is a complete network framework designed around the concept of common channel signalling. While telephone users throughout the world rely on the PSTN to carry conventional voice traffic, new end-user data and signalling services can be provided with a parallel, dedicated signalling network.

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