Telephone dialing

IME the timing tolerance is EXTREMELY wide. With a little practice anyone can pulse-dial using nothing but the hook switch.

But... if the loop resistance is unusually high, or the lineman's phone pulser contacts not so good, things could go out of whack.

Tim.

Google does. Several, in fact.

Cheers! Rich

Maybe it depends on location (in US) as it seems to work OK here (Portland OR).

uZxIUjQnZ2dnUVZ snipped-for-privacy@posted.isomediainc...

his

and

=3D- Hide quoted text -

The Specifications chart at this link provides the pulse dialing timing tolerances for 10 and 20 pps signalling. Link:

FIOS equipment (aka ONT) still accepts pulse.

-- A host is a host from coast to snipped-for-privacy@nrk.com & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433

That's amazing. So, obviously the FIOS equipment has an interface to a regular POTS type of phone, and if so must have a small ringing generator in it, too. Sheesh!

I think it's time for a new (digital) phone standard for these voip applications. No 52V battery - no loop current detector - no ring generator - no DTMF decoders...

Bob

The problem is how you get everyone to replace their current equipment and, at least to some extent, the wiring -- despite the prominance of VoIP today, the vast majority of homes are wired for the old POTS (two-wire) standard; replacing all these (hundreds of millions) of phones and the associated infrastructure is not at all cheap!

...no working phones during power failures...

Central office p;ower is very comforting.

Cheers

Phil Hobbs

(Who insisted that the FIOS installer leave the phone on copper)

Yep. But it's all local.

Seen Skype? For a while, I had Yahoo Voice, and it was great. Stopped needing it.

-- Les Cargill

-- Les Cargill

:>> -- :>> A host is a host from coast to snipped-for-privacy@nrk.com :>> & no one will talk to a host that's close........[v].(301) 56-LINUX :>> Unless the host (that isn't close).........................pob 1433 :>> is busy, hung or dead....................................20915-1433 :>

:>

:> That's amazing. So, obviously the FIOS equipment has an interface to a :> regular POTS type of phone, and if so must have a small ringing generator in :> it, too. Sheesh! :>

:> I think it's time for a new (digital) phone standard for these voip :> applications. No 52V battery - no loop current detector - no ring :> generator - no DTMF decoders... :>

:> Bob : :...no working phones during power failures... : :Central office p;ower is very comforting. : :Cheers : :Phil Hobbs : :(Who insisted that the FIOS installer leave the phone on copper)

Yeh but! In Australia when the FTTH is completed all the dedicated telephone switching exchanges get decommissioned. I suppose all the copper will be pulled out and sold for scrap - should bring in squillions....

We had it; it was ISDN. The Bells killed it off, for reasons too stoopid to discuss.

Yes, ISDN (Innovations Subscribers Don't Need, It Still Does Nothing, etc...) looked promising, but I think that people realized that 64 or

Perhaps there will be some VoIP phone standard someday to go along with the vendor-specific wireless, fiber, coax, or twisted pair interface box. However, as someone else pointed out, having someone else (the CO) provide always-there power and service is very reassuring. That's why I still have a POTS line. Having said that, keeping a cell phone with you always does seem like a good idea, too. It apparently saved at least one life in the tornado-stricken areas.

Bob