Info on the British Telecom service

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\ -/-\-/-\ Info By Z-N0TE -/- SiAC '94 /-\-/- /
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-<| Info on service 175 |>-
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Using Tones
~~~~~~~~~~~
When you call 175 on your phone a nice recorded message will inform you of
the number you called from. Then it will say "Start Test" and repeat what its
just said. The line will die so put the phone down and in 15 seconds it will
reconnect the phone and after 25 seconds it will call you back, not the usual
ringing, it will ring 3 times then return to the normal ringing ... If you
held the phone up when it calls you back it will say "Earth B" twice. If you
had the phone down it should say "Line testing Ok". You can leave the phone
down without answering it for up to 2 minutes and 15 seconds, after that it
will timeout and return your line to normal service (it may also notify an
engineer that the line is fucked so be carefull). Now it will say "Dial next
test" ... It will now give you some bleeps, dial "1" it will say "Start test"
then dial in order "1,2,3,4,5,6,7,8,*,0,#" and if they sound ok to the
exchange it will say "Dial testing ok" twice then "Dial next test". Now "2" is
invalid so dial "3" ... "Start test" then some fast bleeps ... Nothing works
from here as its a payfone test (Mmmm, must try something out). It will come
back to you and say "Incorrect coin pulsing" then the usual "Dial next test".
"4" gives off "Sorry, not avalible on your line" and the rest of them
"5,6,7,8,9,*,0,#" are all invalid options.

Using Pulses
~~~~~~~~~~~~
Using pulses instead is fine because it regonizes them ! For the dial test
just dial "1,2,3,4,5,6,7,8,9,0" dont press with "#" or "*" as they turn your
phone (when in pulse mode) into tone mode for the duration of the call ...

Uses ?!?!?!?!?
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When your parents are skinflints like mine and they dont like you calling out
and stuff ... Dial 175 then hangup and go talk to your parents about something
give yourself 25 seconds to get from the phone to a parent and when the phone
goes off walk over to it and pick it up, say "Yeah, just a minute I'll get you
on the other phone, dont hang up ..." put the phone down and goto your room
and call who ever you want,it doesnt make it free but will keep you safe until
your itemised bill comes in ...

Thats all really ... I dunno if 175 is free but I guess it would be as its a
test line, no wait British Telecom are such buttheads they probably chanrge
48p per minute for their engineers to check your line ! ... Nah my guess
is its free ...

One last point, unlike some other British Telecom services, you cannot access
service #175 by dialing (0800)-800-175, this number is unassigned at present.

Anyway happy phreaking, and remember ... A phone system is just a computer
waiting to be explored ... L8r.