We have a VG224 and i enabled feature access codes on it. I use the default prefix and access codes. Default is **3 for call pickup. I made this test; I called a phone X from a phone Y and the Y one started ringing. While the phone Y is ringing, i push the buttons **3 on a phone Z and the phone Y stopped ringing. Also the dialtone on phone X has stopped. However; the call disconnected and no auido stream between X and Z started.
What can be the cause of this, any idea?