Iphone unlocked but cant receive calls

[mikesol]

Im in South Africa. Ive managed to unlock my Iphone and can send and receive sms's and make calls, but i cant receive calls.its permanently engaged. I called my service provider and they says its a sign of a blacklisted phone.

Anyone else have this issue or a possible fix?

[hasbean]

Right now this is happening in Kuwait with one of the service providers MTC.

People with an unlocked iPhone cannot receive calls when they use MTC. However, when they switch to the competing carrier Wataniya, it works!

I'm not really sure why this happens, but just thought I'd confirm the issue :(

[jostboart]

same here in luxembourg with the carrier LUXGSM
everything works fine except we can't receive calls.

[hellboun]

same thing in Malaysian Maxis,
I've called them and they say they will try something for it.
I think its call forwarding issue

[Snowbird]

Im in South Africa. Ive managed to unlock my Iphone and can send and receive sms's and make calls, but i cant receive calls.its permanently engaged. I called my service provider and they says its a sign of a blacklisted phone.

Anyone else have this issue or a possible fix?

Odd. Is it not a SIM problem or SIM version problem?

[kt89]

i got my 012 (Maxis) working this afternoon...moreover on roaming in Singapore

[hubbards]

i had the same problem here in Thailand with AIS. works fine with DTAC. I know others have got the software unlock working with AIS so I'm thinking it might be a SIM version issue. I had exactly the same problems when using the Turbo SIM method. at the time I thought by was to do with the fact that the network somehow knew I was up to mischeif but it seems thats not the case as the software unlock doesnt work by trcking the phone into believing its using an AT@T SIM.

My AIS SIM was a few years old. I dont know if those of u that are having these problems are also using old'ish SIMs. if u r then it may be worth asking your provider for a new SIM.

clutching at straws perhaps?

i thought it was a call forwarding issue as did AIS but it wasnt. cancelled all diverts and still same problem.

[souliot]

I had exactly the same problem here in Kenya with SAFARICOM. I thought at first that it was the SIM card (which is 5 years old), but then I tried it with a new one and same problem. I then bought a prepaid from another carrier, CELTEL, and this now works fine. My guess is it has something to do with the carrier's network. Cheers.

[pendalf]

how can the network provider know,
what you´re using iPhone?

[Draken]

I seen the same thing jostboart , i also live in South africa. Strange thing is, Other South Africain providers USE vodacoms towers , even know they a seprate company. And they work ? (cellc,virgin).

Another strange thing is, if you are currently CALLING someone, and someone tries to call you, the call comes through >?

[jostboart]

My guess is it has something to do with the carrier's network.

that's what I thought...i own a new sim card, so I don't think it has anything to do with the SIM.

[token.stranger]

kt89,

Am I given to understand that you have full service on your Maxis Network, including incoming calls? Or, that as a result of your roaming, you can receive incoming calls on Maxis while roaming?

Thanks.

[souliot]

I have a T-Mobile SIM from the US that I use on trips, and I tried that when my Kenya SIM (Safaricom) could not receive incoming calls. In roaming mode, it worked fine with CELTEL, but still could not receive calls when i switched it manually to Safaricom. This is what led me to go out and by the CELTEL card, which works fine. I also however was able to obtain incoming calls through Safaricom if I was on the other line. Weird....

[superfr8d]

We are a bunch of people experiencing the same issue in France with "SFR".

I've called SFR today and explained the problem (including the fact that I was using an iPhone). To my surprise, they were nice and tried to help me out but didn't manage to solve the problem.
I had my 3-year old SIM card exchanged for a new SIM today but that didn't help at all.

I have tried my iPhone with a SIM card from another network ('Orange' in France) and it works fine... I can send/receive calls/SMS and connect to Edge.

I would be tempted to think that this could be related to the iPhone trying to connect to EDGE and therefore not allowing incoming calls (people trying to call me get a busy signal).

FYI, some have managed to solve the problem by disabling call waiting in the network menu. This didn't solve my problem though.

Some people think it is related to a 3G/2G problem with some networks that have both 2G/3G (it works with some though).

Being able to disable the EDGE protocol could help isolate the problem (removing the APN and setting it to a fake one doesn't solve the problem).

One thing I pointed out to my network when I called them is that I believe AT&T customers roaming on SFR are probably experiencing the same issue. That might make them speed up the solution finding process.

[superfr8d]

One thing I forgot to mention and that might be of importance:

SFR does not support EDGE in France (they have implemented it in some area but it is restricted to corporate accounts).

Hence my question to all of you that have troubles receiving calls: does your carrier support EDGE ? or is it only GPRS (like SFR) ?

[superfr8d]

If someone could write an application to turn on/off EDGE/Data, I believe it would solve the problem...

(changing the APN doesn't have on impact on this problem)

Anyone from the dev team?

[xfibre]

I am having the same problems in Bulgaria on Mobiltel. The iPhone works on the other two providers, but it can't receive calls on Mobiltel. I hope a solution comes up.

[xfibre]

Can someone try this:
apprently, deleteing the . in the wap.cingular setting in /var/root/Library/Preferences/SystemConfiguration/preferences.plist does disable the edge.

[hubbards]

I seen the same thing jostboart , i also live in South africa. Strange thing is, Other South Africain providers USE vodacoms towers , even know they a seprate company. And they work ? (cellc,virgin).

Another strange thing is, if you are currently CALLING someone, and someone tries to call you, the call comes through >?

Hey you're right! When I was speaking with AIS support they tried calling me whilst I was on the line with them and what d'ya know - i get a missed call. So 'yes' I experienced the same result - whilst in an outgoing call, a incoming call does come in. Weird!

[xfibre]

were you able to respond to the call on the second line ?

[ysury]

Same thing in Indonesia with any provider. Can't recieve a call, can make a call, SMS in/out ok.

Wonder why?

[hubbards]

Can someone try this:
apprently, deleteing the . in the wap.cingular setting in /var/root/Library/Preferences/SystemConfiguration/preferences.plist does disable the edge.

I tried removing the . from the preferences.plist file. Inserted problamatic AIS SIM card, rebooted phone but still unable to receive calls. Did I remove the correct bit. See below - I've highlighted the . that I removed.

-----------------------------------------------------------------
<key>com.apple.CommCenter</key>
<dict>
<key>AllowNetworkAccess</key>
<integer>1</integer>
<key>Available</key>
<integer>1</integer>
<key>Setup</key>
<dict>
<key>apn</key>
<string>wap.cingular</string>
<key>password</key>
<string>CINGULAR1</string>
<key>username</key>
<string>WAP@CINGULARGPRS.COM</string>
</dict>
<key>Version</key>
<integer>1</integer>
</dict>
--------------------------------------------

Where did you hear that this was a solution? Maybe if we can read the original solution we may have more luck.

Thanks!

[mikesol]

apparently its may have something to to do with the IMEI number? my service provider say they dont recognise it and therefore blacklist the phone and disable the calls coming in.

Not too sure how to fix that, but am going to try another service provider and see what happens?

[nikibs]

i have tested it on MTEL BG on 2 separate Iphones with:
1. legit ATT card while roaming - no go
2. TSIM - NO go
3. Software unlock - no go
4. Cloned sim - no go
5. prepayed card - no go
6. 4 different cards bought from 1999 through 2007 - no go

so that pretty much eliminates most of the sugestions in this thread. since i used 2 different Iphones i assum that it is not related to IMEI restriction. I also get the called id in while on another outgoing call but it only shows up for about 1/2 sec

all other providers here are working perfectly fine.

[kshehzad]

Guys, I work for an operator and we have traced it down to the Nokia BSC. Our network is divided in 2 regions. One uses Siemens BSCs and other Nokia's. In Siemens land there is no issue with incoming calls at all with the same SIM, same HLR and IN but in Nokia land, icoming calls are not possible. This has been escalated to Nokia support and their development is working to find a solution.

I suspect all you guys having problems have the networks with Nokia BSCs.

[thariman]

Same thing in Indonesia with any provider. Can't recieve a call, can make a call, SMS in/out ok.

Wonder why?

IM3 work fine, Mentari work fine, matrix work fine with new SIM card, XL Pro work ( but have problem changing base station ) Simpati and 3 only outgoing.

[thekuwaiti]

It works fine with Wataniya Kuwait .. but can't recieve calls on Zain-Kuwait.

People have mentioned that its a sim card issue (64k vs. 128k). I have attached a picture of the sim cards (don't know how to differentiate).

http://farm2.static.flickr.com/1407/1377727491_5868e69d52.jpg

[ysury]

IM3 work fine, Mentari work fine, matrix work fine with new SIM card, XL Pro work ( but have problem changing base station ) Simpati and 3 only outgoing.

Does yours work slower after iunlock?

[thariman]

What do you mean slower ?

[Draken]

nikibs, i live in South africa and i dont have an iphone yet, but a guy i know does. Listen to this, if u type *#43# it will tell u if call waiting is active. On the network here that doesnt allow incoming calls, call waiting is active, on the other 3 networks that WORK it isnt ? So try use the cmd #43## to disable call waiting, if that doesnt work, try call the provider and ask them to disable it. I have heard this has fixed some ppls problems around the world with huge dumb ass problem !

[nobek]

I have the same problem with incoming calls in Poland, Era GSM network.
There have been reports that iPhone is working with Era network in Warsaw.

Unfortunately, I am from Wroclaw - I have some information that Era GSM has some strange BTS stations here, which use the 850Mhz frequency both for voice and data calls and that is what iPhone does not support.

It seems that iPhone is not as compatible with our networks as every other phone :-(

Tomorrow I will drive away from Wroclaw to check if iPhone works outside of the city. I will keep you posted.

[likwei]

just now goto maxis center check why maxis line cannot call in. She said maxis block the incoming coz iphone is not release in malaysia and there is no way to unlock untill iphone release in malaysia.

[Draken]

Likwei, tell that whore that YOU pay there company for a service, Unlocking an iphone for personal use is LEGAL, they are not allowed to BLOCK you due to type of phone, its illegal, u can sue them.

[hussainahm]

It works fine with Wataniya Kuwait .. but can't recieve calls on Zain-Kuwait.

People have mentioned that its a sim card issue (64k vs. 128k). I have attached a picture of the sim cards (don't know how to differentiate).

http://farm2.static.flickr.com/1407/1377727491_5868e69d52.jpg

doesn't work on Zain Bahrain either but works on Batelco !

[Boiling Ice]

doesn't work on Zain Bahrain either but works on Batelco !

you know... my main sim is batelco, but after reading the forums here, I've tried Zain sim.. as soon I pluged it in, I received a call. but that was the last one... :(

it's really strange and I hope someone could find out what's the reason behind it.

[jostboart]

it's a carrier problem. after calling LUXGSM they told me they are aware of the problem, and are trying to fix it over the weekend. They told me that apple sent them 5 iphones to test their network.

[fpyyh]

I also tried on Mtel and always receive a "Call forward" message with a "Dismiss" button when calling. When the support guys tried to put me on hold and to call me I got a "missed call", they got busy and thats the only way I could get any indication of incoming calls.

[Alfred]

I am a current Maxis mobile customer and going to get myself an iPhone next month. After finding out that I would not able to accept incoming call when I use the iPhone with Maxis, I sent them an email as follow :

I sent an email this afternoon and to my surprise, I received a call promptly from one of your customer service representative after a few hours. I asked him about why iPhone that is so popular in US could not be use with Maxis network (could not accept incoming call) while Digi and Celcom is just fine with it.

Well, the iPhone is an unlocked phone and several people has tested it locally (and people around the globe as well) using different telco (Celcom & Digi) sim card and Maxis is just the only one that got issue with it.

When I asked the customer service representative about why is this happening and what I got is "the iPhone has yet to be officially launched in Malaysia, thus Maxis troubleshooting team would not do anything with it till then".

Well, it make sense. But it make absolutely no sense when that come out from a leading telecommunication company in Malaysia.

I am a loyal Maxis customer since 7 years ago and even had persuaded my friends and family to switch to Maxis mobile due to the terrific network quality. But very unfortunately, that I have to switch to Celcom or Digi when I got my iPhone one month later. Maxis might think that losing a customer is nothing. But as time goes by, especially when you are playing in technology playground which everything tends to come, go and disappear really fast, not responding timely is just another reason why Celcom and Digi is catching up.


Personally, I am not asking much from Maxis. For seven years of loyalty with Maxis, I have just received gift in value of RM 13 from you all and now I am being pushed away because I am going to use an unsupported GSM mobile phone. I would really love if I could stick with Maxis.

But it seems that I cannot do anything at this moment.

I received an email later regarding this from their customer service as follow :

Thank you for contacting Maxis.

We do understand your concern on this matter but we are unable to assist you since the mobile phone is not officially launched in Malaysian market yet. Hence, we are unable to troubleshoot to resolve the issue.

Hope the above explanation clarifies your concern. Alternatively, if you need further assistance please email us at customercare@maxis.com.my or call our contact center at 03 74922123.

Yours sincerely

Parmasivam Subramaniam

Customer Service Operations

For those Maxis customer, we are out of luck .... I am thinking of switching to Celcom once I got my iPhone.

[Jafo]

Malta Vodafone MT

Same story, everything working but no calls in.

I have got them on the case - seems like they all want to get it working - I guess everybody wants an iphone now

[thekuwaiti]

nikibs, i live in South africa and i dont have an iphone yet, but a guy i know does. Listen to this, if u type *#43# it will tell u if call waiting is active. On the network here that doesnt allow incoming calls, call waiting is active, on the other 3 networks that WORK it isnt ? So try use the cmd #43## to disable call waiting, if that doesnt work, try call the provider and ask them to disable it. I have heard this has fixed some ppls problems around the world with huge dumb ass problem !

Just tried it .. doesn't work.

[nikibs]

i don't think it is a problem with the forwarding. for all of you that are not familiar with that msg it has to do with a normal network protocol. It exist on most carriers - simply non-usa phones seem to not show it. I have a lot of phones and all of the ones i got from the states do show "call forwarding active" when you try to call someone. tested on all 3 networks here. regardless of that 2 out of the 3 are working. MTEL BG is still no go. Did i mention i tryed every possible combo and have not been able to make incoming work. I now remember i even tryed a cloned T-mobile USA card roaming there and still no luck. However someone said something about the 850MHz band. Iphone does support it. It is used agrecively by ATT in the states. The 1900 band they use there is terrible for indoors coverage. if in europe they use the 850 band for somethink else that can be a problem (i do have another 850 phone that works fine though)

[alghawas]

I was thinking maybe the issue of not being able to receive calls has to do something with the Telco GSM Network Type.

For example, I noticed that the problem exisists with all TELCOs with "Nokia" GSM Networks while it works with "Ericcsion" GSM Networks.

If all of us can list down the types of the GSM Networks that has this issue, we may be able to narrow down this issue.

Just a thought

-G

[Q8Music]

It works fine with Wataniya Kuwait .. but can't recieve calls on Zain-Kuwait.

People have mentioned that its a sim card issue (64k vs. 128k). I have attached a picture of the sim cards (don't know how to differentiate).

http://farm2.static.flickr.com/1407/1377727491_5868e69d52.jpg


iphone + zain = no hope

its not the sim card ,its the network it self .

iphone use nom1 and zain nom2
you can check it by : *3001#12345#*
and check Tap GPRS info you'll find it nom2 , while wataniya use nom1 .

nom's is : (but i'm not sure)
nom1 3G networks
nom2 GPRS networks

so if we want to the iphone on zain they should change the system network from GPRS to 3G.

[Draken]

umm no q8Music, thats very wrong, here in South africa, vodacom has FULL 3g covarge and incoming calls doesnt work it yet. Yet Other networks here that have shitty 3g coverage but good edge, work fine. It seems to be the networks who left edge in the dust and went straight into 3g who are having a problem.,

[mikesol]

umm no q8Music, thats very wrong, here in South africa, vodacom has FULL 3g covarge and incoming calls doesnt work it yet. Yet Other networks here that have shitty 3g coverage but good edge, work fine. It seems to be the networks who left edge in the dust and went straight into 3g who are having a problem.,

yup still doesnt work on Voda - works perfectly on MTN.Havent tried Virgin/ Cell C. Going to try upgrade my sim card to 64k and then see, oterwsie ill port to MTN. God the things we do for apple!

[Q8Music]

umm no q8Music, thats very wrong, here in South africa, vodacom has FULL 3g covarge and incoming calls doesnt work it yet. Yet Other networks here that have shitty 3g coverage but good edge, work fine. It seems to be the networks who left edge in the dust and went straight into 3g who are having a problem.,


i dont mean the coverage .

i mean the system network aether GPRS or 3G ....if your network based on GPRS will not work cuz it use nom2 and the iphone use nom1 as 3G network.

[gaz]

Exactly same situation for me on Voda.Confirmed 100% working on MTN.Let us know if 64k sim works

[thekuwaiti]

i dont mean the coverage .

i mean the system network aether GPRS or 3G ....if your network based on GPRS will not work cuz it use nom2 and the iphone use nom1 as 3G network.

I wrote this on the forum .. NOM1 / NOM2 just refers to the GPRS settings. AT&T is a 3g network and most of their towers provide NOM2...

NOM1: Mobile phones can have multiple packet/circuit connection; which allows the phone to recieve calls while using EDGE/GPRS.
NOM2: Mobile phones can be ‘attached’ to the gprs network; but it can’t recieve data and voice simultaneosly.
NOM3: Mobile Phones can not have both services connected; it must be either data (packet) or voice (circuit).

[thekuwaiti]

Also, someone has confirmed that Zain/MTC works fine when roaming... therfore I believe the issue is with the celltower and not the sim cards.

[superfr8d]

Well I've tried this on the Orange network in France.

It is a nom2 network apparently. But everything works with my iPhone including call reception...

[xfibre]

any news ?

[ysury]

What do you mean slower ?

Everything runs slower than before iunlock.
Booting, choosing application, closing application, etc. All run MUCH slower :( :(

[hussainahm]

Everything runs slower than before iunlock.
Booting, choosing application, closing application, etc. All run MUCH slower :( :(

Restore the phone, it will still stay unlocked. maybe it's the SSH and stuff that was installed to make the unlocking work that is making it slow.

[alien2108]

Same problems in Slovenia. iPhone works OK on provider Mobitel, but no incoming calls on Si.mobil provider. Since I know some guys there we already are testing it and traces were sent to Siemens! Interesting they don't use Nokia equipment, but Siemens and problems are there!

It seems there is some deviation at the protocol and some equipment just ignores it, other doesn't!

[alien2108]

UPDATE

Just got info, that for our provider in Slovenia (Si.Mobil) Siemens acknowledged the problem and issued a patch that will be applied this week!

Hope it helps u guys!

[mikesol]

Exactly same situation for me on Voda.Confirmed 100% working on MTN.Let us know if 64k sim works

No dice on the 64k sim.Doesnt make any difference. Was at Vodacare today and they have no clue what to do. Aah well.

P.s. Phone also works 100% with Cell C. looks like ill have to port!

[nikibs]

SI Mobil (voda) and MTEL BG are owned by the same company. Let's hope they will issue a worldwide patch

[thekuwaiti]

UPDATE

Just got info, that for our provider in Slovenia (Si.Mobil) Siemens acknowledged the problem and issued a patch that will be applied this week!

Hope it helps u guys!

Zain/MTC (Kuwait) have done the same .. they said they will be updating the towers within the next week too. Someone mentioned that the issue was due to the iphone sending heartbeat signals to the edge service; keeping the lines busy.

[xfibre]

Finally! iPhone is working on Mtel in Bulgaria !!! :)

[nikibs]

Roger that, mtel incoming ok on MTEL BG

[thekuwaiti]

Iphone now works on MTC/Zain in Kuwait .. they updated the firmware.

[xfibre]

So I guess it was carrier's fault after all:) Good to hear people are starting to receive calls on the problematic networks :)

[nasko]

Incoming calls issue has been resolved on the Mtel carrier in Bulgaria. The problem was related to the Siemens equipment. BTW the iphone baseband is manufactured by Siemens too.

[hussainahm]

now works on MTC Vodafone Bahrain (Zain)

[superfr8d]

SFR in France told me they would not fix the problem...

Great customer service :(
They don't even care about AT&T customers roaming on their network (SFR has special roaming rates for AT&T customers but I guess they don't care about the fact that AT&T customers won't be able to receive calls)

[Yazdgerd]

I believe that turning OFF "Edge" might solve the problem, however this can't be done easily by simply using the latest available edge-disabling applications, by Hackint0sh members. These two applications available here, simply remove the Edge settings, while the main service is actually running in the background, perhaps preventing you from receiving any calls.

The latest firmware update 1.1.1 by Apple, seems to be disabling "Edge", but I can not confirm this since this update removes the manual activation/unlock methods.

It would be great if some users with the working AT&T simcard, with an updated 1.1.1 iPhone could confirm this, that the latest firmware IS ABLE to completely turn the EDGE system OFF, not just removing the setting and leaving the service running hidden.

[gaz]

Any news on the likelihood of the iphone working on Vodacom South Africa in the near future? Dont want to port to MTN and then find VOdacom gets it working straight afterwards!

[gaz]

Has anyone determined whether it is definitely an EDGE related problem?

[Yazdgerd]

Has anyone determined whether it is definitely an EDGE related problem?

About 99 percent sure, because you can receive calls, when you're already in another call (calling someone means EDGE is off).

[cayotte]

About 99 percent sure, because you can receive calls, when you're already in another call (calling someone means EDGE is off).

This morning I called my provider and asked them to turn off my EDGE completely. Soon after that, I checked my EDGE status by trying to update the Weather. It showed "Could not activate EDGE: You are not subscribed to EDGE". Good, I had just disabled my EDGE connection through my provider.

Then I did the reset and called to my iPhone using other phone. But too bad, still couldn't receive the call. So, it seems like it's not the EDGE causing it. I also tried to disable EDGE using SERVICE.APP after that. Still unable to receive call.

Anyway, thanks for giving it a try.

[cikopajo]

We have the same problem in Slovenia....

I give the operater iphone for 3 days for testing.....they find the problem and fix it!


It was problem on siemens centrals...they make upgrade and now its working :)

[Yazdgerd]

This morning I called my provider and asked them to turn off my EDGE completely. Soon after that, I checked my EDGE status by trying to update the Weather. It showed "Could not activate EDGE: You are not subscribed to EDGE". Good, I had just disabled my EDGE connection through my provider.

Then I did the reset and called to my iPhone using other phone. But too bad, still couldn't receive the call. So, it seems like it's not the EDGE causing it. I also tried to disable EDGE using SERVICE.APP after that. Still unable to receive call.

Anyway, thanks for giving it a try.

Cayotte, what about your iPhone's EDGE?

That is actually causing the problem, not your provider. Apparently iPhone keeps sending EDGE signals out, and providers that can not interpret the signals, somehow think that the number is busy. Unless you call someone, which means the EDGE system is off.

As for Services.app, it is not totally stopping EDGE, it just deactivates the setting, which is useful for upgraded providers that understand the EDGE system. It means, that service is alive in your iPhone, just not operational.

The conclusion is, that we should wait for reports from users with upgraded 1.1.1 iPhones, as this upgrade seems to be turning the EDGE system completely OFF.

Still not sure, maybe, maybe there are some incompatibility problems, unless some '1.1.1"ed iPhone users try and then confirm it.

[superfr8d]

We have the same problem in Slovenia....

I give the operater iphone for 3 days for testing.....they find the problem and fix it!


It was problem on siemens centrals...they make upgrade and now its working :)


I wish my French provider were that fast... Unfortunately, it seems they're unwilling to solve this problem even if that means loosing thousands of subscribers...

[cayotte]

Cayotte, what about your iPhone's EDGE?

That is actually causing the problem, not your provider. Apparently iPhone keeps sending EDGE signals out, and providers that can not interpret the signals, somehow think that the number is busy. Unless you call someone, which means the EDGE system is off.

As for Services.app, it is not totally stopping EDGE, it just deactivates the setting, which is useful for upgraded providers that understand the EDGE system. It means, that service is alive in your iPhone, just not operational.

The conclusion is, that we should wait for reports from users with upgraded 1.1.1 iPhones, as this upgrade seems to be turning the EDGE system completely OFF.

Still not sure, maybe, maybe there are some incompatibility problems, unless some '1.1.1"ed iPhone users try and then confirm it.

I'm starting to have a clearer point of view. Thanks.

[cayotte]

This morning, Telkomsel (my provider in Indonesia) has fixed the incoming calls problem. I'm able to receive the call now.

[kazakoff]

i've the same problem in russia with Megafon...and they dont know how to fix it...

[gioinnj]

Same problem with Magti GSM in Georgia. Hope it will be fixed by 1.1.1 beacause Magti doesnt really care about it.

[redice1]

jeez.... whom does one talk to at the operators offices as the customer service people are rather slow at helping... vodacom guys who managed to get thier network operators to solve the problem, any ideas wht they could have done for u?

[Jafo]

Has anybody upgraded to 1.1.1 and managed to receive calls when they couldn't with 1.0.2? I have asked Vodafone Malta to fix it but they are dragging their heels as well.

[gaz919]

I don't think a 1.1.1 update will fix a carrier problem

[kennet]

i had the same problem here in Thailand with AIS. works fine with DTAC. I know others have got the software unlock working with AIS so I'm thinking it might be a SIM version issue. I had exactly the same problems when using the Turbo SIM method. at the time I thought by was to do with the fact that the network somehow knew I was up to mischeif but it seems thats not the case as the software unlock doesnt work by trcking the phone into believing its using an AT@T SIM.

My AIS SIM was a few years old. I dont know if those of u that are having these problems are also using old'ish SIMs. if u r then it may be worth asking your provider for a new SIM.

clutching at straws perhaps?

i thought it was a call forwarding issue as did AIS but it wasnt. cancelled all diverts and still same problem.

I am having the same problem with ETISALAT UAE but DU works perfect

[redice1]

I am on 1.1.1 and it doesnt help... this is frustrating.. get an expensive fone to work with an expensive carrier :'(

redice

[Patriot]

I am having the same problem with TCI in Iran. but there is something strange for me. there is only one career in iran (TCI) but when I was in Tehran I did not had the problem( working incoming calls) but after going to another city (with the same SIM card and ofcourse career) I have the incoming calls problem!
My iPhone firm is 1.1.2 (upgraded from 1, I had the same problem when 1.0.0)
Career :TCI in Tehran -----> no problem
Career :TCI in shiraz ------> Incomming calls are not working.
Any ideas?:(

[TwistyValhalla]

This is really concerning how unlocked iPhones are being singled out and blocked. Should try to find out the legalities of such action from carriers.

[Sadjad]

i have same problem in iran,(using TCI)
i check another carrier(MTN IRANCELL) and it works good everywhere, but with TCI i haven't receive call exactly where they use Siemse BTS s, and where BTS is Nokia my iphone works great in incoming and outgoing calls.
TCI does not support edge and gprs, are you still thinking that problem is from EDGE system?
there must be a way to completely disable or turning of the EDGE system, or for example Deleting some files from Iphone to completely Disabling EDGE.

[benjafares]

my carrier block mi imei