Product Catalog: NEC: Key and Hybrid Systems: Aspire Series Products Aspire (NEC) An IP key system that can also be configured as a traditional TDM key system. It can start as small as 8 stations and can grow to 512 stations. Aspire offers all the features you've come to expect, plus peer-to-peer IP support. Aspire S (NEC) A smaller version of the Aspire system, the Aspire S offers big features, such as IP Telephony, for offices of less than 30 stations.