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  1. Authentication on INVITE and RE-INVITE

    How can I get the 3cx server to do authentication on a INVITE and RE-INVITE. I can't seem to find the proper setting, and it is in the spec.
  2. Incoming call rejected, caller is unknown

    Adding the subnet did not help. It is only happening on one device, rest of the phones work. And this device receives calls but can not make a call to another extension. Other devices can call that extension. When it says "Call(C:1): Incoming call rejected, caller is unknown; msg=Ivite-IN...
  3. Incoming call rejected, caller is unknown

    this is real simple system (so far). I have just a few phones on one 3cx pbx. No external VoIP provider. But when one phone tries to call another I get this error. " Incoming call rejected, caller is unknown". The device show a error of 403 which means the pbx understood the request but...
  4. Why no logging on failed registration.

    I do see errors from phones that pass the password and Id at the right time. But the library that I am using (Fusion SIP) does not allow that. You must wait for the RegAuthChallenge event to register...has something to do with security I'm sure. And I am stuck with that library.
  5. Why no logging on failed registration.

    I am building a sip based appliance and I am trying to get it to work with 3CX. I am sending a registration without Password and ID. 3CX sends me a RegAuthChallenge event (which it should). I then send it a the registration parameters with username and password. Then I get a message that...
  6. Can't get Windows Phone to register

    I am a military contractor; our mail server is locked down TIGHT. Can't reach an outside SMTP server either, ports are locked. So email is not an option. Regardless I did not know about the CTI/SIP mode. Moved it to SIP and it started working. Thanks for your help!
  7. Can't get Windows Phone to register

    I have a 3CX server (free version for testing). I do not have a mail server that I can use; so I am trying to configure the 3CXPhone to work with the 3CX sever. The password is working, the Available/Away is working on the extension status page. But it shows not registered. The 3CX...
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