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Is MSISDN mandatory in LTE?

+4 votes

Is MSISDN mandatory in LTE or any PS networks? If we have IMSI as subscriber id is that sufficient?

posted Oct 20, 2014 by anonymous

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1 Answer

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Both serves different purpose Both serves different purpose where IMSI is used to identify a subscriber by operator at the same time MSISDN is used to route the call. In short MSISDN is the number which is used for dialing


Now coming to your query, if we use IMSI as a subscriber identity then services likes MNP, IN would become impossible of we need to device the mechanism which will be similar to MSISDN only. I would suggest to go through the link above and a lot of doubt would get cleared.

answer Oct 20, 2014 by Salil Agrawal
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