Typical SBS call connection examples

Last Updated : Oct 30, 2012 |

Four typical call connections are presented here.

  • Point to Point call represents an SBS call between two Communication Manager systems. See the figure.

  • Tandem SBS trunk call represents an SBS call between two Communication Manager systems (A to C) with an intervening Communication Manager system in between. The SBS signaling link tandems through the intervening (B) node. The SBS bearer call is direct from node A to node C. See the figure.

  • An SBS trunk interworked to a non-SBS trunk represents a call between two Communication Manager systems (A to C) with SBS functionality available only between nodes A and B. This call is interworked from SBS to a non-SBS QSIG trunk group at node B. See the figure.

  • A non-SBS trunk interworked to an SBS trunk represents a call between two Communication Manager systems (A to C) with SBS functionality only available between nodes B and C. This call is interworked from non-SBS QSIG trunk group to SBS at node B. See the figure.

    Figure : 1. Point to Point SBS Call Connections
    Figure : 2. Tandem SBS Call Connections
    Figure : 3. SBS to non-SBS QSIG Call Connections
    Figure : 4. PRI Non-SBS to SBS Call Connections