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 ]

[GC1028]

The number of logged “No Number” calls on my BT8610 handset since this Wednesday to Thursday with these times on the handset calls list.

11.37, 12.27, 13.17, 14.07, 14.57, 16.37, 19.57, 20.47, 21.37, 22.27 - these are on Thursday and now in to Friday, 63.07, 5.07, 5.57,14.17, 15.07 then it changes to 8’s 15.58,16.48,17.38, 18.28, 19.18, 20.08, 20.58, 21.48,22.38, 23.28 making 25 over 24hr period. 

As of this Saturday morning I have eleven No Numbers as you can see.

The light was flashing on the answer machine, pressed play and nothing, no message and no ringing. Pressed button to view and then delete those 11 “No Numbers” from the calls list and screen display showed “Not currently available”

Pressed every other button on the answer machine and nothing happened. I then pressed green button as if to make an out going call and saw this displayed on the screen.

I realised that the phantom No Number call was still active and although I looked at my phone at 8.59. I then switched off the answer machine and then back on and then able to see the calls list and delete all the “No Number” calls showing. As I was deleting them I noticed one phantom "No Number” calls timed at 8.28 and my thoughts was the length of time of 31 minutes my landline phone was not physically working and despite what the Call Guardian message was showing no further incoming calls or outbound call could be made till switching the answer machine on/off. 

This is the first time I’ve come across this happening and don’t know if anybody else has experienced it. VM,What concerns me is any anyone having to rely on a landline to make a call to the emergency services and can’t to it because of this. 

If Ayisha_B from Forum Team is saying “The route cause is located on the handsets’ sensitivity to power fluctuations received from the Hub” then the power fluctuations made my phone inactive for approx 31 minutes or it could have gone on for longer if I had not spotted.  This is not on VM. 

[superloopy]

Thats exactly what i am seeing too. Thes 'no-name / no-number' calls are hanging up the line for the duration as the phone ACTUALLY believes there is an incoming call in progress. This is quite serious now. Maybe a forum member could answer whether or not VM would treat a cancellation of my package in these circumstances as needing an early repayment charge as i am now considering leaving and going elsewhere. At the very least we should get a reduction in our overall package allowing me to withdraw from my phone service and reinstate it elsewhere if VM seem incapably ignorant of ways to fix. Quite easy ... they should provide compatible equipment to those fee payers affected.

Comment please VM.

[TKD]

yes gc1028 same thing with me couldn't make any calls untill answer machine sorted I have bt8500 advanced phone all the call times end with the digit 8 with a few call time listed as 63.18, 63.38 and 63.58 how is this possible? I would just like to say this never happened with sky, oh and while I'm in the mood to cancel my VM I've realised it actually changes the time on my handset too, this is a ridiculous state of affairs.

[Arissa_H]

Hi Majidph.

Welcoming you back onto our forums. Thank you for posting.

Sorry to see you are having issues with our landline service.

Is it just no number calls you want to block? 

If you can elaborate, we would love to help.

Thank you.

[TF1909]

Just out of interest we’ve had Truespeed installed at work - very impressed - we chose 300mb option and we get 300mb downloads and uploads - ie not throttled.

Anyway they’ve installed VoIP but they have a small box called Grandstream in between the router and the phone. I wonder if this is something Virgin need to look into?? Does this filter errors that are showing up on our phones? When I get to work Monday I’ll try and update with model etc but looking online it looks like a ht801 from memory. Just a thought 

[Client62]

The Grandstream is an ATA ( Analogue Telephone Adaptor ). Similar functionality is built into a Hub 3/4/5 hence the TEL 1 & 2 sockets.

We have a Cisco ATA for our telephone lines one line for the home phone and a second line for the house alarm.

In the ATA devices are 2 settings for Direct IP calls. One to disable making a Direct IP call and one to disable accepting a Direct IP call.

Two clicks, this is how easy it is to prevent Ghost calls.  See my post #401 in this thread for more details.

Virgin Media are not looking at ATAs, they wish to operate an over priced & closed VOIP system where the home user enjoys none of the technical or price advantages of a real VOIP platform.

Removing phone lines from an ISP bundle has been once of the best moves we made.

[TAZMANUK]

With migration to VoIP (digital voice) they should allow us more features since they would be no such thing as line rental if it's coming through internet connection, at least give more features.

[Client62]

Only VM have migrated to VOIP, customers are limited to POTS, a plain old telephone service via an analogue socket

[TF1909]

Can you explain in layman’s terms how to stop this with 2 clicks please?

Sorry for not understanding, you seem very knowledgeable! 

[Chris_Myers]

The point is that you cannot do this on a Virgin Media router as this level of tooling is not made available on their hubs.