SAP Bluethooth phone and 3 UMTS line
The SAP cradle is a GSM900/1800mhz phone only.
So, you could use a 3 SIM not from the country you are in (if 3 has a roaming to GSM900/1800 operator) and pay roaming charges - but you couldnt ever use a 3 UK sim in the UK since they won't allow roaming
Richard
I just bought one MB SAP BT adapter.
In my country I can roam with GSM so I better put it in GSM mode so it can communicate with the BT adapter.
I thought it could not since the USIM is different from the old SIM.
By the way... do you have any idea if MB will build a new adapter so I can use easely a 3G phone with 3 provider?
In my country I can roam with GSM so I better put it in GSM mode so it can communicate with the BT adapter.
I thought it could not since the USIM is different from the old SIM.
By the way... do you have any idea if MB will build a new adapter so I can use easely a 3G phone with 3 provider?
Diesel Benz
MB Enthusiast
You don't have to put the phone to GSM mode to be able to use it with an MB BT SAP device. The BT SAP connection works fine with a USIM too. I always put my GSM/UMTS phone to GSM only mode and I am using a USIM with it, also using the BT SAP device.
3 actually is using national roaming in the UK but they do not allow a GSM only phone because they want the phone connect their UMTS network always when it is available, if not available, then Orange is selected (I thought it was O2 but this link says it is Orange: http://www.3g.co.uk/PR/May2006/3040.htm ). Note that the phone may be set to indicate "3" even if it actually is served by Orange.
The MB BT SAP device obviously would use national roaming through GSM even if 3 coverage would exist, this is why they don't allow GSM-only phones.
I have placed the USIM into my Phone craddle!
No way to access to any GSM line.
I'll try later from the phone (Nokia N73) using GSM line and UMTS line.
The weird thing is that downloading my phone book from Nokia N73 it give me a "System Error" at 460 downloaded contact on 650!
That stuck the TEL Comand page and I have to disconnect it to resume.
No way to access to any GSM line.
I'll try later from the phone (Nokia N73) using GSM line and UMTS line.
The weird thing is that downloading my phone book from Nokia N73 it give me a "System Error" at 460 downloaded contact on 650!
That stuck the TEL Comand page and I have to disconnect it to resume.
amwebby
MB Enthusiast
My Nokia N73 worked in dual (GSM and UMTS) mode but every call sounded as if it was underwater. Switching the phone to GSM mode only solved the problem.
Diesel Benz
MB Enthusiast
Can you clarify, was this in the car and did you have a BT SAP or BT HF or a cradle setup.
amwebby
MB Enthusiast
In the car, with a SAP Bluetooth cradle.
Diesel Benz
MB Enthusiast
Thanks, but I don't understand why the phone mode would make a difference with the BT SAP setup. I have not done it but you should be able to set the phone to "UMTS only" -mode and you would end up using GSM in the car. I may have missed something but this really sounds odd
(I don't mean the voice quality 
).
amwebby
MB Enthusiast
Unless the network mode is saved to the SIM.
Diesel Benz
MB Enthusiast
No, it isn't (certain preferences are). But the point is that the BT SAP device is a dual band GSM (GSM only) phone, it would only connect to GSM networks.
amwebby
MB Enthusiast
Well, all I know is both my phone when out of the car and whilst connected via Bluetooth SAP had the underwater problem until I switched dual mode off and switched to GSM.
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I use a Nokia E65, set to dual mode and it works perfectly with the SAP module. The module will only connect via GSM (as already stated) the phone connects via bluetooth and the SIM ident transfered. It matters not a jot what mode your phone is set to. 3 SIM won't work because 3 don't have GSM network, so nothing for the car to connect to
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One question comes to mind, why do you need 3G connection? 2G is perfectly adequate for voice / text
Diesel Benz
MB Enthusiast
You don't seem to read advertisements.
I don't have UMTS coverage at home, most European countries have less 3G coverage than the UK when there is no "3G only" network.
Our networks do support GSM EDGE, I find it perfectly sufficient for email and mobile browsing (actually always on email is the reason I switch 3G off from my phone, it kills the battery when served by UMTS). Download speeds are above 200 kbit/s (phone supports 5*59.2 kbit/s but the network only 4 slots) and upload above 100 kbit/s (phone supports 3*59.2 but network only 2 slots) while UMTS typically does 384 kbit/s.
Three (3 UK) does not allow me to use the USIM with another provider with this phone since I can't tell SAP Cradle to use not the original line.
So I need the UMST SAP cradle.
That's why.
I have my main phone UMTS 3 and I can't use it in my car for that reason!
I look like a clown with all that gadget in my car and I still using the earphone to speak.
Diesel Benz
MB Enthusiast
I'm repeating comments a bit but 3 is actually allowing GSM via national roaming at places where they do not have UMTS coverage. This does not help you at the car though, they do not allow a GSM only phone because this one would not switch back to 3 once you enter their coverage.
You could use the BT HF device with your 3 phone. It would not be ideal though because of the phone antenna being used for calls and that again kills the battery, specifically on the 3 network.
I've also mentioned before that one Australian member of this forum (Australian 3 customer) got his operator change his subscription settings making it possible to use his 3-USIM on the MB BT SAP device. In practise they removed the ban on a GSM-only phone attaching their network, but only for this subscriber of course. If you are equally persistent, perhaps you can force the UK operator do the same.
Diesel where are you from?
Here I can roam with GSM provider too using 3 IT BUT... the SAP v2 Cradle do not allow any roaming I don't know why.
I tried many hours but nothing.
It read the data from USIM but the SAP Cradle will not use them.
Here I can roam with GSM provider too using 3 IT BUT... the SAP v2 Cradle do not allow any roaming I don't know why.
I tried many hours but nothing.
It read the data from USIM but the SAP Cradle will not use them.
