Managing interactive communications campaigns using a hold queue

A method comprising:

• establishing, by a processor, a queue associated with a sub-campaign of a campaign, the queue comprising one or more held interactions;
• establishing, by the processor, persistent telephony connections with one or more agents of a plurality of agents assigned to the sub-campaign, the plurality of agents being associated with a contact center;
• initiating, by the processor, one or more outbound interactions to one or more customers during a time period of the sub-campaign;
• determining, by the processor, whether a first outbound interaction should be routed to an agent of the one or more agents with established persistent telephony connections;
• and
• in response to determining that the first outbound interaction is to be routed to the agent:
• conditioned on determining that the agent is available, transmitting, by the processor, processor-executable instructions to connect the first outbound interaction to the agent over a persistent telephony connection corresponding to the agent;
• and
• conditioned on determining that the agent is not available:
• placing, by the processor, the first outbound interaction in the queue as a held interaction;
• detecting, by the processor, when the agent is available;
• releasing, by the processor, the first outbound interaction from the queue in response to detecting that the agent is available;
• and
• connecting, by the processor, the released first outbound interaction to the agent over the persistent telephony connection corresponding to the agent.