[canghel]

Is there any troubleshooting resource for non-VoIP gurus? I'm looking for answers to common problems that can be easily solved by changing a couple :mrgreen: of settings.

For example: I have an SPA-2000 that works great behind a symmetric firewall (using proxy).
At home behind a port restricted cone firewall (like any Linksys, SMC, Netgear broadband router) I cannot make it work. I tried proxy, STUN etc. Here are the symptoms:

• 1. I can make outgoing calls, sound quality is great, everything perfect
  2. Depending on the settings I changed :? inbound calls behave like this:
  - phone is ringing, I pick up the phone, the other party sees "connected" I see "answering", no sound at any end after a timeout period the call is disconnected
  - phone is ringing, I pick up the phone, the other party sees "connected" in the Info page I don't see anything, I hear re-order tone and the call is not disconnected at the other end

I know that everything boils down to NAT but I'm lost.
BTW a softphone (x-ten lite), a Cisco phone (7960) and a SNOM 100 phone all work well at home in the same configuration (VoIP provider, account, RTP ports etc.)

Thanks for any hints!