Mobile value-added services (VAS) are those services that are not part of the basic voice offer and are availed off separately by the end user. They are used as a tool for differentiation and allow the mobile operators to develop another stream of revenue.
Once operator start migrating towards LTE then what will be the shape of VAS? It would be interesting to see how current VAS infrastructure will be reused. VoLGA seems to be a bridging the gap during migration but what would be final implementation?
read more at LteWorld