Answer / rajendra gupta

WiFi make use of adaptive modulation and varying levels of forward error correction to optimize transmission rate and error performance.

As a radio signal loses power or encounters interference, the error rate will increase. Adaptive modulation means that the transmitter will automatically shift to a more robust, though less efficient, modulation technique in those adverse conditions.

Please explain prepaid roaming MT call flow. (All the related MAP/INAP and ISUP messages)

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