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and very rarely ever needs repairs, once you fix them." - Dan/Panther

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#51
Technical "Stuff" / Re: The end of POTS?
Last post by dsk - April 21, 2024, 02:55:11 AM
Quote from: MMikeJBenN27 on April 21, 2024, 01:16:04 AMAd much as phone bills are today, it is hard to believe that they can't make money off of it.  The reason we don't want to change is because VOIP requires a modem.  That means that VOIP is dependent on the power company.  That means if there is a power failure, we have no phone service.  Get it?
Yes! And even with a battery backup. The network my be down at a power failure....  Here in Norway we have lost already.  The mobile use to work 3 hours after power down.
#52
Technical "Stuff" / Re: The end of POTS?
Last post by MMikeJBenN27 - April 21, 2024, 01:16:04 AM
Ad much as phone bills are today, it is hard to believe that they can't make money off of it.  The reason we don't want to change is because VOIP requires a modem.  That means that VOIP is dependent on the power company.  That means if there is a power failure, we have no phone service.  Get it?
#53
Technical "Stuff" / Re: The end of POTS?
Last post by ka1axy - April 20, 2024, 11:02:59 PM
IMHO (I work in tech), the issue is not so much the abandoning of copper, which is no longer profitable for any use at all, but the question of what replaces it, and where. I know of nobody who can justify the continuing operation (and maintenance) of the traditional POTS copper exterior plant. The mechanical switches are long gone, and even the digital exchanges are being replaced by IP switches. It's a TCP/IP world out there...

Ideally, the copper replacement would be a unified national gigabit fiber to the home network, but since we disassembled the Bell System, who is going to architect it? What we will end up with, sadly, is a patchwork of isolated replacements, each installed by whoever the legacy RBOC can talk into doing the work, and only where the subscriber density will justify it, with varying specs, quality and workmanship, and absolute minimum support. Everyone else gets (very politely) left out in the cold.

I'm extremely lucky to have been given Verizon FTTH when they abandoned copper in my area (Boston west), but the rural folks are not going to be as lucky without some federal intervention to make sure they get what I got.
#54
Technical "Stuff" / Re: The end of POTS?
Last post by MMikeJBenN27 - April 20, 2024, 10:55:59 PM
OK, here they are.  I hope you can read them, I don't have the steadiest of hands.

Mike
#55
Technical "Stuff" / Re: The end of POTS?
Last post by MMikeJBenN27 - April 20, 2024, 10:55:00 PM
Quote from: poplar1 on April 19, 2024, 05:35:01 PMMike, please post copies of these letters.

It seems AT&T has been trying  to no longer be carrier of last resort. Initially, they were asking state legislatures (not the PUC)  for the right to abandon copper landline service wherever there were alternative carriers. Now, it seems, they couldn't care less if subscribers are left with no alternative -- for example, where cell phone signals are not reliable or non-existent; where there is no decent internet; etc.

When I was installing and repairing phones for the State of GA, we had to provide 2 lines for fire alarms. One had to be dedicated and the other could be wired through an RJ31X jack so that the alarm system would have priority over voice calls. I'm not sure how the building owners (some space is leased rather than State-owned) can get a certificate of occupancy without these copper lines. Also, fax machines don't work on VOIP lines, yet faxes are required for certain medical documentation, because sending over the internet or email is not considered secure.

The discontinuation of landlines in the United Kingdom has apparently been pushed back to 2026, because of so many complaints. Many existing alarm systems, medical pendants, etc. have stopped working when switched to VOIP...
#56
Phones from this era were fully developed precision instruments, made to industrial standards, not "consumer grade" (=throw away) products.
There was nothing left to improve, thus things went downhill instead...
#57
On my collection, I have several and I have Never thrown Them away.

You juste have to clean Them as well as you can and lubricate the Gears système and adjust the governor a Little... And it's donne..
#58
Telephone Troubleshooting and Repair / Re: NE-500 from Turkey - how t...
Last post by Gerd - April 20, 2024, 10:49:28 AM
ROCKFORD in da House!
Okay I know he used a WE2500 but what I wanted to tell you Guys: IT RINGS and WORKS. I am soooo happy as a little boy. 64 now and my first 500 is living!
You all have a great weekend.
Greetinz,
Gerd
#59
Telephone Troubleshooting and Repair / Re: WE 554 won’t ring
Last post by keithi70 - April 19, 2024, 07:34:23 PM
Quote from: poplar1 on April 19, 2024, 01:59:01 AMTry ringing it with all other phones unplugged.

If the Ooma ATA is sending less than 77 Volts AC, you may want to adjust the biasing spring on the ringer. Try moving the spring to the low notch.

Photo credit to member G-man.


I'm happy to report that I switched from the high to low notch and that fixed the phone - it rings again! 😃😃 I'm thrilled!

What would have caused it to stop working on the high notch all of a sudden? Just curious...
#60
Thanks for confirming my understanding of the A-lead.
I am finally getting back to building up my key shoebox system along with one of Gregg's 'Seriss' 1A2 boards, and revisiting my idea for designing a modern line card, call it 400i (as I think H was the last revision).
I have ideas for about 5 different cards, but first want to make the most basic linecard.
However I am thinking of adding just one feature;
the card could also detect when other non- key phones 'upstream' from it go off hook, and then I was thinking it could also detect downstream by more precisely measuring loop current and changes in loop current.