Dedicated Bearer Call Flow

Following call flow changes happen during:

  • Dedicated Bearer Flow Creation: While creating dedicated bearer in 4G, SMF sends N4 modify with source interface type as S5-U in uplink PDR create.

  • Additional 5G Call Flow Creation: While creating additional flows in 5G, SMF sends N4 modify with source interface type as “N3 3GPP Access” in the uplink PDR create.