Hey everyone, I just purchased the Sony Ericsson S710 from Cingular and the phone is great. I had no problem syncing the phone up w/ the car, however for some odd reason, the car says that the phone is roaming and has a big R next to the signal bars on the MID even though it isn't. I have full signal stregnth and on the actual phone it says CINGULAR as the network and is not roaming. Does anyone else have this problem or know of how to fix it?

 

My SE K700i also says "R"...

 

Same issue for me in Toronto, Fido is the provider and it worked initially yet doesn't anymore which may have been caused when Fido was merged with Rogers. It makes me believe the source is network rather than my setup as it did work beautifully for a few months prior to the merge. Who knows however. Anything to try from somebody who figured this out would be great.

 

Most likely you are a Cingular customer roaming on T-Mobile's 1900mhz towers, hence the "roaming."

Same thing...In Washington state, the majority of the towers belong to T-Mobile even though your system id tag says Cingular.

 

i had the same issue with my s710 and siemans phone. i dont think it has anything to do with the network b/c i alsoways had the R and not all the towers hear are t-mobile.

 

In NY, the 850 towers are Cingular whereas the 1900mhz towers vary.

 

in NY most of the 850 towers are the old AT&T towers. and many 1900 towers were traded to cingular from t-mobile for towers in C.A.

 

I never realized at&t did 850 out there. hrm.

 

as far as i know all GSM towers from AT&T are 850. i work in cingular and that is what an RF engineer told use. but i will find for sure tomorrow

 

Please do as I am curious. To my knowledge, the majority of the tower (manufacturers) were split up between Nortel, Ericsson, Nokia and some other smaller companies. Nokia and Ericsson won out most of the bids to do the towers. I had a friend who helped to the network configuration for Bear Lake in the North part of California contracted to Ericsson. He was driving around and IM'ing me on AIM...that bastard. As for which system id the towers were assigned to...even 3-4 years ago, he said most of N.Cali was AT&T whereas towards the middle and southern portions were Cingular based. I'm not sure about NY though but I'm definitely curious now that (I still think) it has some answer as to why bluetooth is showing roaming. Not all system towers have been completely converted over to Cingular (from at&t) and yes, T-Mobile & Cingular share so many towers all over the place.