CHF Response

The CHF response, during an exchange, sends updated volume and time thresholds and quota. The SMF relays the updated URR toward N4.

A change in threshold, trigger, or quota triggers an Update URR, which leads to the N4 relay.

SMF sends the Update URR based on the following triggers:

  • Volume or time threshold

  • Volume or time quota

  • Tariff time change

  • Quota holding time, and so on