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Is it mandatory to have an MSISDN associated with a IMSI record on the HLR?

+4 votes

M2M devices and data cards without voice services may not need an MSISDN, how are such records maintained on the HLR? Is it mandatory to have an MSISDN associated with every IMSI record on the HLR? If yes, can we just have a dummy/fake MSISDN associated in such a case so to avoid consuming/wasting a real MSISDN?

posted Jul 3, 2013 by Prasad Shetty

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Adding my thoughts, not really an answer:

I agree your point for M2M devices where MSISDN would not be required as they can have IP connectivity alone. However a fallback to SMS channel if IP is not available can also be argued as need for MSISDN.

But for the evolving Datacard scenario, the operators are providing rich UI with the datacard where you can have personalized inbox to send and receive SMS, get usage stats, etc. It might be required to have MSISDN for datacards in such case.

It is however interesting to know if on a need basis the MSISDN can be re-used or have dummy MSISDNs.

1 Answer

0 votes

Datacards, dongles do have the MSISDN/IMEI/IMSI so it should not be a problem, however in some case specially related with IMS these things may not be present in that case the database is not HLR rather something else.
In case fake MSISDN it is technically possible but why operator will like to do that???

answer Jul 3, 2013 by Salil Agrawal
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