I have a customer who has a sv8100 at a small location which I installed a few years ago. They have an older Aspire at their main office, which I did not install. Can the SV8100 and the Aspire be setup to do IPCCIS? If not, they have IP1NA-12TXH phones on the Aspire, would those work on the SV8100 as 3rd Party SIP phones or Dterm SIP?