Circuits to and from PBXs before H V 1.0 need the circuit parameter NQPI (between calling and called user, can also be Cornet-N) and NQNP (between querying and called user, cannot be used for call pickup). This is not the case for a dedicated transit system that supports Cornet-NQ.

Remote connections can also lead to PBXs that do not support broadcast signaling (for example, Realitis). If the queue of the local call pickup group is empty, the system blindly attempts the call pickup at this PBX until it is successful. There are three more parameters for administering each remote connection - whether pickup signaling is transmitted, whether signaling is received, and whether park signaling is supported.

Broadcast signaling is executed over "Temporary Signaling Connections" (TSCs) (one per group to each remote connection that is picked up for signaling or used for the parked call). These TSCs are active until the queue of the call pickup group is empty and the local "parking location" is empty. A timer starts as soon as this situation occurs. When the timer expires, the TSCs are triggered. The default time is 1800 seconds. You can modify it with the parameter GPUNST (for example, AMO CTIME, branch CPTIME). If calls are signaled while the timer is running, the timer stops.