If this a networking issue please report.

Ip phone keeps ringing. Make a test call to the external number answer it at one of the ringing extensions then hang up the calling phone and report whether the extension immediately shows the call as disconnected. If is an external call. Phones randomly ringing short ring.

Inspecting the logs of your phone system or voip provider will not show these calls at all. If the phone is constantly ringing and there is no one on the line when you answer this may be caused by malicious scans on the Internet. Thank you very much.

Even though the call is answered the cellphone starts to rings and keeps ringing until it reaches the Follow-Me Ring Time of 30 seconds. IP phone keeps on ringing even caller drops the call Hi I this issue that when callers are trying to call an extension and dropped the line the extension will keep on ringing forever until the the phone goes off-hook. IPO 406v2 3165.

Hi We used PolycomVVX-VVX_500-UA40113922 for our business center. Plug a regular handset in and see if the problem persists. I have a customer with a anologue AVAYA Phone.

They say that sometimes the phone rings and they pickup but it continues to ring. If i configure the connection plar in my FXO the extension dedicated to the FXO behaves normaly meaning if the caller drops. You are simply receiving an INVITE from a malicious SIP scanner and therefore the Phone rings.

If is an internal extension phone you need to look at a setting on you IP. Cisco FXO ports pickup the phone on the first ring detect and then generate their own ringback while the IP phone is being signaled. I can only make an assumption as to the lines you are using.