Universal Mobile Telecommunications System (UMTS) is one of the third-generation 3G mobile telecommunications technologies. In Singapore, UMTS operators like Singtel, M1 and Starhub use the 850 MHz and/or 1900 MHz bands for their 3G Network. Upload and download of data are quite fast using this 3G Network.
UMTS bands are 2100 for Europe, 850/1900 for AT&T in the US and 1700/2100 for T-Mobile in the US. Quad Band UMTS would be 850/1700/1900/2100.
Some Omnia USA user have ask why two different UMTS band?
The most common answer was that AT&T does not want customers to jump over to T-Mobile. This maybe the main reason why they use competely different brand.
But in my country, Singapore every mobile operator use the same frequency band as requires by the authority. This is to ensure that the mobile subscribers can switch between networks with ease.
Some Omnia USA user have ask why two different UMTS band?
The most common answer was that AT&T does not want customers to jump over to T-Mobile. This maybe the main reason why they use competely different brand.
But in my country, Singapore every mobile operator use the same frequency band as requires by the authority. This is to ensure that the mobile subscribers can switch between networks with ease.
GSM Network band
You can use the following website to check which countries use 3G network with GSM 850/1900 or GSM 900/1800. It also show whether 3G network is available in which countries.
GSM World Coverage>>>
You can use the following website to check which countries use 3G network with GSM 850/1900 or GSM 900/1800. It also show whether 3G network is available in which countries.
GSM World Coverage>>>
You can check what Frequency Band you have on your Omnia.
Enter the code *#2263# on your dial pad.
It should bring up a list of available frequency band for your Omnia.
The specific frequency bands originally defined by the UMTS standard are 1885–2025 MHz for the mobile-to-base (uplink) and 2110–2200 MHz for the base-to-mobile (downlink). In the US, 1710–1755 MHz and 2110–2155 MHz will be used instead, as the 1900 MHz band was already utilized. While UMTS2100 is the most widely-deployed UMTS band, some countries' UMTS operators use the 850 MHz and/or 1900 MHz bands (independently, meaning uplink and downlink are within the same band), notably in the US by AT&T Mobility, in Singapore by Singtel and in Australia by Telstra.
For existing GSM operators, it is a simple but costly migration path to UMTS: much of the infrastructure is shared with GSM, but the cost of obtaining new spectrum licenses and overlaying UMTS at existing towers is high.
For existing GSM operators, it is a simple but costly migration path to UMTS: much of the infrastructure is shared with GSM, but the cost of obtaining new spectrum licenses and overlaying UMTS at existing towers is high.
