Quote from: funkychicken9000

Quote from: Chaostimeits not a legal requirement that phones have to draw their power from the phone lines.

Fact.

Trust me, i work in Telecoms

Well its hardly likely is it?  Almost everyone I know has phones that keel over in a power cut.  They dont plug into the mains just for a laugh  

Cordless phones are covered under wireless telegraphy laws and so are exempt I believe.

Private telephone systems will usually have failover in case of power failure and normally will operate on one line. Providing that a phone has a phone socket it should be able to operate without requiring additional power.

Mains power is normally used solely to power answermachine equipment and the further functions of a phone.

Oh... and Chris... it is law. Providing I can find the damn act Ill copy and paste it here.

Thank you!!! knew I wasnt going bloody mad.

source: http://osab.org.uk/static/archive/oftel/publications/1995_98/technical/annex69.htm

Quote6. The Interpretation Act 1978 shall apply for the purpose of interpreting this Approval as if it were an Act of Parliament.

I.E. THIS IS A LAW.

QuoteThe Relevant Apparatus

(i) that are supplied for the purpose of making connections between a termination point of a public telecommunications network and any item or items of approved telecommunications apparatus; and

(ii) which are to be used for the conveyance of analogue voiceband services, messages in digital form or a combination of the two; and

(iii) which are not apparatus requiring individual type approval; and

(iv) which meet the technical requirements set out in Schedule 2;

Basically... telephones

QuoteSCHEDULE 2

1 All Relevant Apparatus shall provide an electrically conductive or optical path for the communication signal and shall use no power. It shall not have any connections to apparatus the primary function of which is to supply power

Thank you... and goodnight.

aye on the pbx at work, theres an "emergancy" setting where it powers one extention so it can handle incoming and outgoing calls without power etc.

Sounds like the article in question is a telephone cable, not the phone itself.  At least thats what its describing.

ah gimpage, your right FC9K.

Wrong article. meh... well I had enough googling for that crap cant find the regs concerning telephones, spesh when they bloody call the cables "telecommunications apparatus".

Grrr... still the law stands I swear.

quite clearly cant be law can it..  I mean just look at the world around you.

its full of phones that do NOT work on that piddly 4volts or whatever it is that BT pumps down all the copper all the time.

Theres 2* Dect style jobbies in our house (same line) that do sod all if the power goes. we have to plug in a crappy old phone to have calls )

(it goes a fair bit higher than 4V to set a phone a ringin doesnt it? its all controlled on voltages for old skool phones?)

still one day...  all be mobiles wont it like.. in China.

Quote from: snellgrovequite clearly cant be law can it..  I mean just look at the world around you.

its full of phones that do NOT work on that piddly 4volts or whatever it is that BT pumps down all the copper all the time.

Theres 2* Dect style jobbies in our house (same line) that do sod all if the power goes. we have to plug in a crappy old phone to have calls )

(it goes a fair bit higher than 4V to set a phone a ringin doesnt it? its all controlled on voltages for old skool phones?)

still one day...  all be mobiles wont it like.. in China.

Line voltages are a lot higher than 4V mate (Try 50Vdc and -50Vdc).

And, dect... thatd be wireless wouldnt it mate. As I said they are covered under Wireless Telegraphy.

Part of my task when I was doing work experience for Intertek was to produce a report of regs and approvals that a nokia phone (not at liberty to say which one, it was patent related at the time) met. To do that I basically had access to an entire library of legal crap that I had to filter through, mobile telephones werent mobile telephones in the 1984 telecommunications act, nor the 1949 version, nor the 1992 revision, so I had to sift through piles of telephone regulations and assorted crap.

It was in the midst of reading this crap that I was reading that all telephones were required to be operable in the case of a power loss, and should provide access to emergency services when required.

Take a wired phone that also takes a mains input. unplug the mains, and plug the wired phone into the line, You should by law, get a dialling tone.

The mains supply merely powers answerphone functions and other functions such as caller ID, call forwarding, Conference calling (internal) and similar.