Usually, telecommunication systems make use of shielded or screened audio cables to protect against alien interference and other types of distortion. Cat5E STP Plenum Solid Core Cables are shielded to resist electromagnetic and radio-frequency interferences, allowing radio and telephony applications to broadcast and transfer voice/audio with less or even no problems.
In addition, CMP rated, the Category 5E cable jacket is made of plenum flame retardant material. For greater protection of your equipment, your work setting, and for better voice/data transmission, use some Shielded wire-pair solid core cables.