Connect Cisco desk phones with an RJ9 headset port to headsets that use a Jabra Quick Disconnect connection. This cable places the RJ9 connector at the phone endpoint and the Jabra QD interface at the headset endpoint, creating a direct wired path between the two connection types. It supports desk-phone headset installations where a compatible Cisco phone and Jabra QD headset are already in use. The quick-disconnect connection lets a user separate the headset from the phone cable without removing the RJ9 plug from the phone. That arrangement is useful at assigned desks, reception positions, contact-center workstations, and other locations where a corded headset remains connected to a desk phone throughout the day. The cable does not add wireless capability, charging, controls, or audio processing; it provides the physical headset connection between the stated interfaces. GTW 3029 is differentiated by its RJ9 phone-side connection and Jabra QD headset-side connection. Verify that the target Cisco phone has an RJ9 headset jack and that the headset terminates in the matching Jabra Quick Disconnect format before installation. This connector arrangement addresses headset connectivity, rather than handset, network, USB, or power connections. It is suited to replacing or adding the cable section between a compatible Cisco desk phone and a compatible quick-disconnect headset.