We're trying to deploy an SPA8000 as a low cost option for analog lines on campus, integrated with our Siemens HiPath 4000 system. What we're experiencing right now is
a) No inbound calls to the SPA. Debugging is set to level 2, and reporting to a syslog server. No entries of any kind when we attempt and inbound call.
b) If the analog phone is in port 1, outbound calls work fine. If we move the same configuration to ports 2-8, we get one way audio - we can't hear the remote end.
There is no NAT happening between the SPA and the HiPath, except whatever is happening inside the SPA.