Hi, I have had a look though the forum and have found a couple of other instances of this issue, but haven’t been able to see where it has been resolved. We are running 3CX v7.1 and I am trying to get a Linksys 3102 to answer a PSTN line. The Linksys is registered with 3CX as a PSTN Device on a virtual extension of 10001, but when I call the PSTN phone number the ‘PSTN Line Status’ page on the Linksys shows Ringing, but 3CX will not pick it up. PSTN Line Status Hook State: On Line Voltage: -54 (V) Loop Current: 0.0 (mA) Registration State: Registered Last Registration At: 1/3/2003 06:20:00 Next Registration In: 78 s Last Called VoIP Number: Last Called PSTN Number: Last VoIP Caller: Last PSTN Caller: Last PSTN Disconnect Reason: PSTN Activity Timer: 30000 (ms) Mapped SIP Port: Call Type: VoIP State: Idle PSTN State: Ringing VoIP Tone: The firmware on the Linksys is 5.1.10(GW) and I have done numerous factory resets and reconfigurations based on the Configuration Guide. Is there an update on this issue? Thanks, Troy.