Trying to ID odd board

I've got a PC ISA board here that is interesting and I'm trying to identify it. The only markings of note on the board are Okidata 21025. There is a daughterboard fitted to some sockets on the main board and it has markings of "OKI KV96-X8D" and "PU1036-4924". The main board has an Intel i960, and two SIMM slots (populated). It's also got two OKI chips with the following markings: OKI ATC IPC Rev.2.0 MSMI0S0980-014 OKI ATC HCC Rev.2.0 MSMI0S0300-018 The backplate has 2 RJ14 jacks and a DA-15 (er, the connector is actually bigger than an A shell, like a Mac video connector). It also has an audio jack. It could be a modem. It could be a voice board. It might be both. What is it? Anyone? Anyone? -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]