Panasonic Card KX-NS5110

A DSP card is a digital signal processor card with DSP resources that can be used for VoIP calls, conferences, the Unified Messaging feature, and the DISA/OGM feature. The DSP cards is compliant with ITU-T G.729A and G.711 codec methods.Depending on the amount of your DSP resource needs, DSP S, DSP M, or DSP L cards can be installed. The number of resources provided byeach type of DSP card is as follows:• DSP S card: 63• DSP M card: 127• DSP L card: 254one of DSP cards can be installed on themotherboard.To operate VoIP, DISA, Conference or UnifiedMessaging, one of DSP S, DSP M or DSP L card must be installed in the DSP card slots.