The native VoIP telecommunications subsystem used by DAC Systems IVR can be configured for SIP or H.323. The subsystem is highly configurable and has been interfaced to a very broad range of PBX's and Telco's.

VoIP provides several capabilities that were either very difficult or impossible with older Analog and ISDN digital infrastructure. For example, call traffic can be directed to multiple geographically dispersed locations significantly more easily using VoIP than the old telecommunications method. The multiple locations handle calls in a balanced fashion and if one becomes unavailable, calls are simply handled by the remaining location(s). There is no administration needed at the PBX or Telco level to handle this scenario.