Avaya TN2602AP IP Media Resource 320 Circuit Card (Refurbished)Key Features: Mfr. Part #: TN2602AP (700261928, 203071) The IP Media Resource 320 provides audio processing for the following types of calls: TDM to IP and IP to TDM for example, a call from a 4602 IP telephone to a 6402 DCP telephone IP to IP for example, a non shuffle conference call The TN2602AP IP Media Resource 320 circuit pack has two capacity options, both of which are determined by the license file installed on Communication Manager: 320 voice