This topic

Digital Voice

ljm — Thu, 30 Jun 2022 12:40:37 GMT

Hello everyone,

I do not have Digital Voice yet but just wondering about the following.

As I am hearing-impaired, I find using my landline easier to use compared to my smartphone, claritywise so I intend to continue using my landline for voice calls when the DV arrives at my property.

I believe callers will have to dial the whole code when making a call to my landline but if a Caller mistakenly omitted the code, through force of habit, when calling my landline would they simply get an 'unobtainable' sound or would they be asked to dial the whole number (Inc code)?

Surely, one doesn't have to inform all friends+family (which could be in their hundreds) to dial my landline number with the code if they want to contact me??

Re: Digital Voice

licquorice — Thu, 30 Jun 2022 13:00:09 GMT

They will either get no tone or unobtainable, they certainly won't get a message to dial the whole number.

Unless your friends and families 'in the hundreds' are on the same exchange as you, they will be dialling the full code now anyway.

Re: Digital Voice

ljm — Thu, 30 Jun 2022 13:10:12 GMT

😂 Thanks Liquorice!!

Re: Digital Voice

licquorice — Thu, 30 Jun 2022 13:48:48 GMT

As an aside, I find using my smartphone through my Bluetooth enabled hearing aids is the best method.

Re: Digital Voice

ljm — Thu, 30 Jun 2022 13:55:57 GMT

My Aids are not Bluetooth enabled, unfortunately! Thanx anyway 😊👍

Re: Digital Voice

Anonymous — Thu, 30 Jun 2022 17:56:33 GMT

You are forgetting that this project is being rolled out nationally.

It won't be necessary for you to tell everyone, as, in time, when phone lines are eventually 'switched off' come 2025, everyone will know to dial the whole code!

Hope this eases your concerns! 😃

Re: Digital Voice

gg30340 — Thu, 30 Jun 2022 18:31:26 GMT

@ljm wrote:

Surely, one doesn't have to inform all friends+family (which could be in their hundreds) to dial my landline number with the code if they want to contact me??

If they presently call you using a mobile phone they are already having to use the number with area code.

If they have your land line phone number in their contacts list they can just use that to auto dial the number or they may/could have your number on a fast dial number or they might even have a great memory and know your whole number and code without having to look it up.

Re: Digital Voice

Anonymous — Thu, 30 Jun 2022 19:22:02 GMT

The original poster has made a good point though.

Some BT customers are already on VoIP and many are not, so until 2025 ('the BIG switch off!!' (it's like analogue TV! I don't suppose you will remember that!)) not everyone will know to dial the whole code if they are calling friends and family in the same area with DV,(and they wouldn't know they are on DV)

So that does pose a problem for customers unless BT work on this. Maybe a recorded message for the caller to hear that could mention to dial the whole code if the connection is not made first time, promoting the caller to dial the area code for the second attempt. But once everyone is on VoIP I imagine it will be less of a problem.

Re: Digital Voice

jac_95 — Thu, 30 Jun 2022 19:27:52 GMT

@Anonymous

That happens today on BT Digital Voice if you don't dial the area code it will say for you to dial again and include the area code.

Re: Digital Voice

Anonymous — Thu, 30 Jun 2022 19:32:32 GMT

That doesn't sound very reassuring for the original poster! 😀

Re: Digital Voice

jac_95 — Thu, 30 Jun 2022 19:36:52 GMT

To be clear those that are not yet moved to VoIP and are still on the PSTN, local numbers are honored (i.e don't have to dial area code even if the number on the other end has has been moved to VoIP)

Those that have been moved to VoIP will have to dial area code on outgoing calls.

Re: Digital Voice

licquorice — Thu, 30 Jun 2022 19:41:50 GMT

@jac_95 wrote:

@Anonymous

That happens today on BT Digital Voice if you don't dial the area code it will say for you to dial again and include the area code.

Hmm, how does DV determine the area code hasn't been dialled rather than insufficient digits? Or does it always assume insufficient digits equals area code not dialled. How long does it wait after the final digit to decide that no further digits are to be dialled and make the announcement.

Re: Digital Voice

jac_95 — Thu, 30 Jun 2022 20:05:29 GMT

@licquorice hahahha you asking me how they've implemented it? I've not tried the different scenarios or know the technical implementation here but there are many ways you could do this, from regular expressions and using lookup services and validation API services to also introducing a delay between receiving the number being entered to then initiating the lookup and validation.

Re: Digital Voice

Keith_Beddoe — Thu, 30 Jun 2022 20:25:19 GMT

API services to also introducing a delay between receiving the number being entered to then initiating the lookup and validation.

That reminds me of the old Strowger mechanical regenerators on a director system, where it stored all the dialled number until it could determine the correct routing, it then resent the digits. It was a mechanical marvel with push pins for memory. The pins often got stuck and the calls failed, so an electronic version was introduced.

That was a very long time ago, but part of my initial training.

Re: Digital Voice

Bob1001 — Fri, 01 Jul 2022 10:59:42 GMT

@Keith_Beddoewrote:
API services to also introducing a delay between receiving the number being entered to then initiating the lookup and validation.
That reminds me of the old Strowger mechanical regenerators on a director system, where it stored all the dialled number until it could determine the correct routing, it then resent the digits. It was a mechanical marvel with push pins for memory. The pins often got stuck and the calls failed, so an electronic version was introduced.
That was a very long time ago, but part of my initial training.

The hardest course I did at Stone, pins everywhere when the spring slipped.

Re: Digital Voice

iniltous — Fri, 01 Jul 2022 18:36:42 GMT

All ‘STD’ calls begin with a ‘0’ , so any ‘processor’ will within milliseconds respond accordingly if a call is attempted that isn’t valid ,in other words if you don’t start the call with a ‘0’.

AFAIK , only BTw support local area dialing so anyone calling the OP who isn’t a ‘BT’ customer ( so customers of Sky , Talk Talk etc ) will already dial the full number when they call the OP , and there are many areas where BT require the full number to be used anyway ( my area is one ) this was introduced way before the advent of Digital Voice , dialling the STD code isn't a hardship.

FWIW , it’s been 30-40 years since calls were routed on a ‘step by step’ basis , as each digit dialled the call progresses with that digit, even with tech that’s been around for 40 odd years , an enquiry isn’t even made to the destination number until all the phone number digits have been entered , then in milliseconds the destination is interrogated, if the line is ‘free’ the destination line providers ‘equipment’ starts to ring the called ‘line’ and the caller hears ‘ringtone’ but even this isn’t a connection , it’s only if the destination actually answer , that a call path is setup between the caller and called party, it’s much more efficient than having equipment tied up with people listening to ringtone.

Re: Digital Voice

Keith_Beddoe — Fri, 01 Jul 2022 18:43:20 GMT

Also numbers beginning with 1 and 9 have to be accepted, plus country code prefixes and special service codes.

Re: Digital Voice

iniltous — Fri, 01 Jul 2022 19:41:55 GMT

Calling ‘International’ numbers still require the first digit to be a ‘0’ , but it’s a fair shout about emergency and customer service numbers , but the overwhelming majority of calls made , begin with a ‘O’ .

In my case ( not on DV but an area that requires all calls to include the STD code even calls with the same local exchange area ) , the AVR ‘ the number you have dialled has not been recognised, please check and try again ) is delivered after the first digit if it isn’t a ‘0’ ( digits 2 to 8 return the AVR ) , perhaps 1 or 9 may not do this until a second digit is entered .