Constant "no number calls" since moving to IP Telephone from landline (Home) (Resolved)

[Chris_Myers]

My area has recently been migrated from landline to IP telephony which seems to work well with one exception.  My received calls report 10-20 daily calls from "no number".  There is no call made (no ringing) and no message left, just a report that "no number" called and a time.  OFCOM state it should be addressed to the provider and the Telephone preference service state they can do nothing with marketing or computer generated calls.  This did not happen until switched to IP telephony and has been daily since (coincidentally - I think not).  This appears to be a man-in-the-middle network attack and is therefore worrying (as well as filling my recent calls with rubbish).  Virgin media say they cannot see these calls, yet their system records it on my recent calls log. Anyone else having this problem or have a resolution?

[MOD EDIT: Please see post for an update ]

[1malcolmgeorge]

Matt - What problem are you trying to identify here,,,, I have reported no problem except for the constant ghost calls which I reported on 29th November and for which we have had previous discussions

[1malcolmgeorge]

Matt - Here is our original conversation

Re: Phantom House Phone Calls

on ‎01-12-2022 08:10

Hey 1malcolmgeorge, thank you for reaching out and I am sorry you are having some issues with your phone and router.

I can see you have posted this message on a few boards, I have just replied to one.

Please check this out when you can, also can we please stick to one board going forward this is to make sure we can you the right help and your message doesn't go missing. Thanks 

Matt - Forum Team

You eventually arranged for an engineer to visit and we had further discussions after that visit and I have been a constant viewer and contributor to this thread ever since

[Matthew_ML]

No problem at all thank you for letting us know this. Thanks 

[ModTeam]

Hi all, 

Thank you for your patience whilst we continued to investigate this issue.

Our Voice engineering teams have concluded that the "no number" issue is device specific and not a global issue.

The route cause is located on the handsets’ sensitivity to power fluctuations received from the Hub. 

Here is the list of handsets we tested:
(We're also aware of reports of other handsets)

• Gigaset C530A Trio Digital Cordless Answer machine
• BT8600 Advanced Call Blocker
• BT Decor 2600 v2
• Panasonic KX-TGJ424EB Digital Cordless Telephone with Nuisance Call Blocker and Answering Machine, Quad Dect

We will now look to explore the option to regulate the route cause, however, this needs to be discussed with the our equipment vendors and may take some time to come back.

As always we will continue to update you along the way.

Kind regards,

Community Moderation Team

[Redwards86]

Finally VM have identified the issue! That’s only taken the best part of a year. 
Wonder how long “some time” will be for the fix …

[TAZMANUK]

Please add bt d93x with call screening and call blocker to the list

[lenworth]

BT Premium cordless phone for me too.

[Woodbutcher1234]

VM claim that the issue is the phones. Some of the phones, what about the rest, my phone is not on there list. Strange it's the phone's fault and not the VM system.

Come on VM come clean and admit that you system is lacking. I once again invite VM to supply me a phone to test if want to prove that it is my phone.

Woodbutcher1234

[TAZMANUK]

Before I moved to the digital voice (VoIP) system 2 weeks ago this Saturday I never had ghost calls, moving over to digital voice I get the ghost calls so indeed it's their digital voice service as haven't changed the handset.

[Client62]

The VM statement only indicates fixes for the Hub 5's defects (in Reliability / WiFi / DHCP / Ghost calls) are not a day closer