The Panasonic KX-TVA502 2-Port DPT/APT/SLT interface expansion card adds 2 voice mail ports to the KX-TVA50 voice mail. This card is compatible with the Panasonic KX-TAW848 and the Panasonic KX-TA824 telephone system.
DPT / APT / SLT Interface Expansion Card
Expands Port Capacity by 2 Ports
2 More Users Can Access the System at Once