NEC iPBX Versions 3C/SV8300/iS3000
From Zenitel Wiki
The INCA Stations and Turbine Stations has successfully been tested with NEC iPBX Versions 3C/SV8300/iS3000.
Download the test report here: NEC_Zenitel_SIP_EndPoint_Test_Cases_rel._2.1.pdf NEC_Zenitel_SIP_EndPoint_Test_Cases_rel._2.1.pdf