withheld numbers - revealing

[f4af_billy]

Ive recently been having problems with people ringing me with withheld numbers. I have a 6600 and was wondering if there’s any software I could put on that would force the number to be “un-withheld” and then search my phonebook for a name match in the same way it does when someone normally rings. Then I can at least find out what the number is that’s rang me so I can ring them back and shout at them!!

Hope you guys can help!

[leespud]

not to my knowledge, ive been searching for an app to do this since i got my 3650 march 03,

[f4af_billy]

hopefully some1 can shed some light on it for the both of us then!

[leespud]

my thoughts are it on a more of a network setup than the handset, but none of the networks ive been on have been able to offer such support, although i know its possible with landlines

[f4af_billy]

thats what i first thought, but the phone can display "no number"- say when some1 rings from a sale centre and rings from inside a phone distribution type thing and doesnt physicly exist. and then theres "withheld number"- which i think would just contain an extra command for the phone to either show the number or not?

if there was only one 'no number' message then i'd agree with you

[Ndi7650]

Maybe there's a reserved phone number for "witheld", like 000 or similar, in witch case no software will help.

Also, since you are able to use "Jim" as sender in a SMS, maybe the network sends "Private" as string. I doubt there's any way of revealing those numbers (without network support), if that would be the case, software would have long hit the market.

Besides, some phones would sell like mad with the feature. People who write flashes for the phone could easily modify the firmware to display the raw packet used for ringing.

Isn't GSM protocol openly documented? I remember some docs about how things get sent around, maybe it contains specs for number hiding.

[tzeonn]

theres a thread bout an app months ago, that supposedly can reveal numbers, coz in front of numbers, are some numbers, which make it show as withheld on ur fone.

but no more news of tt app has been posted since, i assume the app wun work or failed or sth else.

[leespud]

put 141 before the number you are calling and your number will be withheld, this is the case here in england

[Musicb0ffin]

If its serious, you can get the police involved, then you can get it sorted out, but thats only in serious stalking cases and that, so if its just your mate pranking you, its a little extreme.

[AlmostRandom]

>> Isn't GSM protocol openly documented? I remember some docs about how things get sent around, maybe it contains specs for number hiding.


Yeh, I dont think the withheld number even gets to the recipients phone.

[whitey420]

I done a prank call to 141 999 before and they rang me back instantly(from diffrent number obviously), if the police can see number on screen there must be a way.

[skalr]

there is a way its just not widely known, if u can find someone in the police communications department then maybe u can find out

[Sony_Ericsson]

When I had my Sony J5 it was impossible to get the number withheld. When I got my 3650 it was possible, even if I had the same SIM-card. So it must have something to do with the phone too.

[ngc891]

I done a prank call to 141 999 before and they rang me back instantly(from diffrent number obviously), if the police can see number on screen there must be a way.

that is an extremely dumbass thing to do.
:evil:

[deviat0r]

Hello,

I believe the way the police do it is.....

When you call the police, you first go through to a BT operator, who of course has access to ya number. The operator then forwards the call to the relevant section and hands the call over with something like.....
'Inverness connect mobile number 0000 0000000'

So the police and such like only get your number because BT tell them it.

As for the mobiles, I don't know.

If you are getting nasty calls, then contact ya service provider, I know there is an option with a landline to bar all callers who withhold the number. I should imagine that it is simular with the mobiles?? (Correct me if I'm wrong) alternatively, change ya number!

Hope that helps,

Dave!

[GeeZuZz]

It's not the phone that is hiding the caller's number, it's the operator. So theres no way you can make it show on your phone, because it's never sent to your phone.

SMS is different, though.

[Ndi7650]

911 works differently.

[cut might boring story here]

Basically, 911 is a special case of a customer, they didn't just buy a phone. Each network registers "911" in their number and redirects calls with a special case (most likely embeded in the core of the operator hardware) to a different number.

That special case is set to "pass number through regardless of user preference". Probably in addition to priority over other calls (bypass NET BUSY) and so on and so forth.

What you *could* do if you wanted is a service that is available out here, (but not widely available... :) is call the net operator, say that someone is harrasing you and ask for number preview. In that case, you see the number even if the caller has hidden identity (for a price).

I sincerely doubt that network relies on politeness from phone companies to have the number hidden. Also, apps are available to send prank SMSs, flash messages, replace numbers in messages and so on. If this could be done, it would have been, since it's not that hard.

[Musicb0ffin]

The whole idea behind sending fake texts and that is similar to spoofing emails, which isn;t the hardest of things to do. I think it is pretty much impossible to reverse the process, unless you have access to stuff that Joe Public doesn't, IE you are a copper or work at at phone network.

[reficul_x]

It's not the phone that is hiding the caller's number, it's the operator. So theres no way you can make it show on your phone, because it's never sent to your phone.

SMS is different, though.

i totally agree with GeeZuZz too. the number has been withheld by the service provider b4, it goes to ur phone... how the police knows? prob the service provider WILL provide ALL numbers to them in case of emergency, prank(pple like....u noe), etc....

so there's absolutely NO way to do that. an app will do that trick? nah, thats a hoax....

it takes not ur phone but the service provider's task too.....wat the hell.......

[gophermaster]

And most service providers won't give you people's numbers. Even if they called you.

[AmalMarican]

Hiya..... does the 141 trick work in other countries e.g. Singapore??

[Ndi7650]

[if you are in a hurry, skip this]

Despite irellevance, here's a light-on 141.

According to GSM specs, phone can call upon several network services, aside from CALL. E.G. SMS, barring, etc.

Packets are very similar, except that command have different numerics. I forgot them now but bare with me and assume 21 is divert. Setting the phone to divert when busy to 123456 is the equivalent of calling **21*123456#. A request is basically *# then service (or request number), then details. Similar, ##21# would be Service Divert, to 0 (none), a rough equivalent of Cancel All Diverts (actually ##02#).

Hide Identity Call is request 31. Meaning doing a #31#123456 will call 123456 telling the network to hold the onions. When you set the phone to hide identity what it does is add the 30 command to your number. (#31# HIDE, *31# for SHOW, don't send for default, *#31# to query default - "My caller ID is sent"). For Incoming, use call 30 (Number of caller shown).

Why some networks uses 141 or whatever to hide identity is to support older or featureless phones that do not have such features.

Basically, 141 should be per-network and is not guaranteed (doesn't work in Romania. 1831 works in Austratlia, as I see). Use the #31# to hide if your phone does not support setting it from menu.

Other sources say "On some networks, you can use the standard 141 prefix to withhold your number for an individual call. On Cellnet, 1471 works like the BT fixed line version, telling you the time date and number of your last incoming call. On Vodafone *#147#[Send] gives you this information by SMS. Orange and One2one do not appear to offer such a service"

[end of hurry]

Why don't you TRY and call 141 instead?

[FRiC]

Eh? Every GSM phone has an option to set whether to send your number when you call. Just set it to not send...

[solemnuz1]

The only way you can reveal a number that has been sent private or withheld to your phone is if you have direct access to the GSM network that provides you with service. Its a tag on every call and before its delivered to your phone it blocks it if the party calling wants it private. No software for a phone is able to go into the system and change a network setting unless the network is designed for it to be allowed, for example call forwarding. This feature can be set by the customer and changed because its designed to do so. There is no setting in the network that will allow a customer to unblock blocked numbers and no software will be able to create a command that does not exist for a customer. It is possible but you need to have access to the backend of the GSM network and know the commands to set it up and have the system access to do it. It is not a simple process thus you can assume its impossible from a customers standpoint.

[AmalMarican]

Despite irellevance, here's a light-on 141.

According to GSM specs, phone can call upon several network services, aside from CALL. E.G. SMS, barring, etc.

Packets are very similar, except that command have different numerics. I forgot them now but bare with me and assume 21 is divert. Setting the phone to divert when busy to 123456 is the equivalent of calling **21*123456#. A request is basically *# then.........................................................................

.......................................................................last incoming call. On Vodafone *#147#[Send] gives you this information by SMS. Orange and One2one do not appear to offer such a service"

[end of hurry]

Why don't you TRY and call 141 instead?

nice one... will try...

[reficul_x]

Hiya..... does the 141 trick work in other countries e.g. Singapore??

duh....of coz NOT!!!!