Since I am a NEC tech, not a Nitsuko(Aspire), would go with IPK-II, love the IP phones, Megaco stations using a PVA card, 16 ports per card, card can be used for SIP, or Networking. Multiple MOH using extension ports, and a seperate device. Really slick, with solid ACD. Its an Aspire programming base, but takes the tried and true NEC I-series phones, and the IPK/Elite hardware, and runs with it. over 200 extensions, and 200+ vertual extensions.
