10-07-2022, 19:24
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#1
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cf.addict
Join Date: May 2010
Location: PO9 - Havant
Services: Vodafone 80x20 Backup, MixTV & V6, Vivid 350, Hub3 & RT-AC87u
Posts: 126
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See ya later PSTN...
Howdy all!
Has anyone else seen a huge change in levels, since the PSTN-death notifications from Virgin?
Looks like it's getting turned off for good (at elast in Havant/Cosham) on August 10th...
I assume they're playing around in local cabinets, but interesting that all my neighbours have also seen significant change in their levels as well.
Curiously, -5/-6dBmV doesn't seem to be causing any issues here, but come the heatwave - You just know those are gonna slip further 
Tom
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11-07-2022, 22:18
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#2
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Dr Pepper Addict
Cable Forum Team
Join Date: Oct 2003
Location: Nottingham
Age: 62
Services: Aquiss FTTP (900M), Sky Q TV, Sky Mobile, Flextel SIP
Posts: 29,528
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Re: See ya later PSTN...
What "PSTN-death notifications" ?
__________________
 Baby, I was born this way.
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17-07-2022, 21:12
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#3
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Barking up the wrong tree
Join Date: Jul 2007
Location: The North, Beyond Winterfell
Age: 41
Services: VM Gig1
Posts: 103
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Re: See ya later PSTN...
Quote:
Originally Posted by Paul
What "PSTN-death notifications" ?
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I'm guessing this refers either to the stop sell notification for certain areas of Openreach or the transitioning to VOIP for a number of VM customers and their landline service.
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21-07-2022, 12:54
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#4
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cf.mega poster
Join Date: Nov 2006
Location: West Herts
Services: Maxit + Movies/Sports HD (V6x2), BB350, Anytime Chatter. Freeview/Freesat HD, ASDA/Tesco PAYG
Posts: 1,940
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Re: See ya later PSTN...
21CV is only the first part of the switchover. The "backend" kit remains the same for the tiime being. Switch off of PSTN exchanges will be a synchronised event across the network.
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21-07-2022, 13:30
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#5
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Virgin Media Staff
Join Date: Nov 2006
Location: Manchester
Services: 360 x2, Maxit TV, Sky Sports and Sky Cinema. Gig1
Posts: 17,929
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Re: See ya later PSTN...
Quote:
Originally Posted by nodrogd
21CV is only the first part of the switchover. The "backend" kit remains the same for the tiime being. Switch off of PSTN exchanges will be a synchronised event across the network.
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21CV for Virgin Media has a separate IMS switch to any of the PSTN/TDM ones.
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26-07-2022, 13:17
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#6
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cf.addict
Join Date: Apr 2008
Location: Swansea S.Wales
Posts: 178
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Re: See ya later PSTN...
GRIEF!! You lost me on this. lol Not got a clue to those abbreviations.
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26-07-2022, 15:29
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#7
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Dr Pepper Addict
Cable Forum Team
Join Date: Oct 2003
Location: Nottingham
Age: 62
Services: Aquiss FTTP (900M), Sky Q TV, Sky Mobile, Flextel SIP
Posts: 29,528
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Re: See ya later PSTN...
PSTN = Public Switched Telephone Network, i.e. the current telephone network.
I'm not sure specifically what the abbreviation 21CV stands for, but its basically VOIP (Voice Over IP) i.e. telephone calls over the internet.
__________________
Baby, I was born this way.
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26-07-2022, 20:46
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#8
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a giant headend
Join Date: Jan 2011
Location: Liverpool
Posts: 1,169
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Re: See ya later PSTN...
21CV = 21st Century Voice. Lending BT's terminology. BT used 21CN, to indicate their entire network was changing to IP based routing. For VM it's just their voice network.
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