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Yes I agree on this, SMSs Services use them much less, but their use is still necessary.
VAS serves as a one window operation for the end user and is more easier to use. Not only customer can check their account status but they can add more services from the VAS services. The SMS being old technique was not interactive thus reducing the inconvenience.
Correct Direct operator billing is one of the future of VAS services along with other services like personalized promotions or notifications over telecom access channels as well as OTT channels
Technically speaking, Artificial Intelligence based solutions are the key i.e based on the customers actions automatically the OSS/BSS actions define the rules.
