[VoIP] Office code reservation was Number portability in CNET

Ian Jolly ian at uax.org.uk
Thu Nov 1 06:50:09 CST 2007


I've replied to Greg at length but just to put you in the picture briefly.

In the UK/Ireland (and New Zealand) we decided to adopt the old dialling 
codes that use to be used prior to public switches being grouped together 
with a single 'area' (STD) code and a long number. Nowadays, all calls 
within an "area code" are routed between switches without a code.  In the 
old days we would have dialled a local code between these switches and 
callers into the "area" would have dialled the area code plus the local code 
to reach the smaller switches or just the area code for the main 'parent' 
switch in the area.

In 1995 to increase the number of available codes in the UK, the digit '1' 
was inserted after the initial access digit '0' to all geographic codes in 
the UK making them four digits long.

When CNET was first set up, the 'office' code was limited to three digits - 
our "area code"  in the UK.  This fitted in nicely with the old 'heritage' 
STD codes which it was decided we would adopt particularly as a number of us 
have original former public switches preserved - hence we would use the 
original code for that switch. Others wanted to use their own local code (as 
it was originally) and others a code with which they had a connection.

We had a case at the end of last year where a person reserved several UK 
three digit codes which covered most of the west of Wales. That person 
whilst having a number of EM PABXs has never to our knowledge got anything 
up and working in the last 15 years.  Some of the area codes that he 
reserved he had neither the original public switches nor were they in an 
area he lived in. We had a collector with an Asterisk up and running, a 
former public EM switch working plus an EM crossbar switch, all ready to 
connect but couldn't have his own local codes!

An ad hoc committee of the then four working Asterisk owners was left by 
other UK members to try to find a solution.  Part of the solution was to 
allow the reservation of codes up to five digits long (the longest ever used 
by the old British Post Office system).  We then also suggested that a 
'code' could be reserved "unreservedly" for two months but could be 
reallocated after that if some-one was ready to connect. The original 
'reserver' of the required code withdrew his reservation.

Due to the system of  old UK codes consisting of an "area" code for the 
'main parent' switch/exchange and the "area" code plus the local code for 
the smaller switches we have a situation such as this -
Code    Exchange Name    Asterisk Owner
244         Chester               Ian Jolly
244 52    Spon Green         Ian Jolly
244 54    Buckley              Peter Duffield
244 55    Nant Mawr         Peter Duffield
244 56    Kinnerton            Peter Duffield
244 57    Penyffordd          David Harper
244 59    Rossett               David Harper

Thus some of us are even 'sharing' the same three digit code. In the UK we 
tended to refer  to exchanges/switches by a name rather than their code. 
Some of the codes/exchange names are real.  Others are made up using a 
locality name that the Asterisk owner wants to use.  Which are real in the 
above list ?  :-)

All the above people are within three miles of each other!  And yet we've 
sorted out the code problem. We could even add more such as 244 58, 244 6X 
and so on. The codes/exchange names could be real or made up.  Not only do 
we have the above codes set up via the ENUM, we can dial the old original 
local codes from one exchange to another (these route between Asterisks 
without going via the ENUM).  So far we have about 60 "exchanges/switches" 
set up between the three Asterisk boxes in North Wales.   It looks as though 
most of the North of Wales still exists.  It is very hard to work out from 
our  little "network" which are the real switches and which are the 
'mythical' ones ! :-)  You can dial from one switch to another to another 
and so one - just as phonephreakers did many years ago!  24 "switches" in a 
row with something like a 36 digit code is the longest so far before we 
connected :-)

Back to things more serious.   don't think we want to tie things down too 
tightly. "Why mend it if it isn't broke" ?.  On the other hand try to 
foresee any problems. The fact that we have so many codes available in the 
UK now that we can go up to five digits has eased the problem.  And the fact 
that most of know each other in one way or another helps.

We have had one odd problem. One UK three digit code has been reserved and 
activated by a person unknown to anyone else in the UK. I've tracked the 
person down and emailled them with an email address used by them recently 
but no response. No-one-else has seen calls from them going through their 
Asterisks.  What do we do with a situation like that?   Also the /411, and 
/192 directory pages have some list of numbers which haven't worked for a 
long while.  Should we ensure that Asterisk owners only enter numbers that 
are working?   Note I use the term Asterisk owner and not 'code owner'  - a 
point brought up by others.

Some of you may not be aware of my recent appointment as Assistant Deputy 
Chief Enum Coordination Officer (Rest of the World)  - thanks Arthur !

I now help Greg out by looking after the non North American CNET 
applications for membership and code activations.  Any applications come to 
both of us so we can back each other up in case of illness etc.

Ian jolly






+44 (0)  352      82 26 (via a 1929 GPO Rural Automatic eXchange!) from 
CNET - the Heritage Telephone Network
+44 (0)1352 83 82 26 (via a 1929 GPO Rural Automatic eXchange!) from  Public 
Telephone Network
FWD Telephone No  83 2230

----- Original Message ----- 
From: "Greg Blakely" <greg at vyger.net>
To: <jnovack at stromberg-carlson.org>; "Voice Over IP Tandem for Analog 
Switches" <voip at ckts.info>
Sent: Thursday, November 01, 2007 2:09 AM
Subject: Re: [VoIP] Office code reservation was Number portability in CNET


>I apologize, guys.  I can see that everyone is fairly concerned about
> putting their time and energies into a hobby that could fall apart
> disastrously if a war over unsettled issues erupts.
>
> Something you should bear in mind: a new network could be started in
> competition with this one, so your efforts at making asterisk boxes and
> embedded asterisk firewalls would not ultimately go to waste.  You could
> always take your marbles and go join a different game.
>
> All that said, I hope that we don't get to that point.  I kinda like all
> the back and forth we have on the list, and I would miss it if the noise
> level got too low.
>
> I am going to talk with Ian Jolly off-list, and see what it is that they
> have put in place that keeps the UK switchers from warring over their
> office codes.  I'm sure that the legacy phone network in Britain evolved
> over time, so it can't be as cut and dried as it seems.
>
> Once I hear from him, I would like to get volunteers to be part of a
> standards committee.  We could all bring our best ideas, discuss the
> issues, along with possible solutions, and then present what we come up
> with to everyone on this list for all of us to vote on.
>
> That's the only way I can think of that we can resolve some things
> without burning up too much time on this mailing list, rehashing the
> same things over and over.
>
> Once we have voted, any policies that we adopt will be added to the
> ckts.info website.
>
> So, if you have a desire to be a part of the standards committee, please
> drop me an email off-list, and we'll get this critter going in a
> business-like, yet friendly, fashion.
>
>
>
>> -----Original Message-----
>> From: voip-bounces at ckts.info [mailto:voip-bounces at ckts.info]
>> On Behalf Of John Novack
>>
>>
>> The UK guys are ahead of us in their policy and planning so I
>> don't consider a discussion out of line.
>>
>> By having a few policies in place we certainly don't destroy
>> the informal nature of it all.
>>
>
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