The Wave hardware modules provide connectivity for a variety of trunk and station interfaces. All of the Wave hardware modules will work in either an IP 500 or IP 2500 system, with the exception of the 24 port analog station (VW-24AS-C) and 48 port digital station (VW-48DS2-C) cards, which only work with an IP 2500 chassis (due to their size).
Media Resource Modules (MRMs) are available to provide your system with additional voice processing channels, which may be required if you do a lot of conferencing and call recording. An MRM is installed inside of the Wave chassis. With a Wave IP 500, you simply power the system off, remove the lid (two screws) and snap in the module, then power the system back on. With a Wave IP 2500, you simply power the system down, slide out the ISC (system board) from the front of the chassis, snap in the module, then slide the ISC back in and power the system back on.
The older generation of Wave systems used dual 160GB SATA drives on a RAID 1 configuration. The newer (current) generation of Wave systems use one 40GB Solid-State (SSD) drive for its system software, and a 160GB SATA drive for the storage of voice mails, archives, call logs, etc. Upgrade kits are available for the older generation systems.