which models of mobile phone are both cdma and gsm/gprs enabled?

Answer 1

It is not the phone, it is the network.
Subscriber Identity Module (SIM) cards: In the United States only GSM phones use SIM cards. The removable SIM card allows phones to be instantly activated, interchanged, swapped out and upgraded, all without carrier intervention. The SIM itself is tied to the network, rather than the actual phone. Phones that are card-enabled can be used with any GSM carrier.

The CDMA equivalent, a R-UIM card, is only available in parts of Asia but remains on the horizon for the U.S. market. CDMA carriers in the U.S. require proprietary handsets that are linked to one carrier only and are not card-enabled. To upgrade a CDMA phone, the carrier must deactivate the old phone then activate the new one. The old phone becomes useless.

Roaming: For the most part, both networks have fairly concentrated coverage in major cities and along major highways. GSM carriers, however, have roaming contracts with other GSM carriers, allowing wider coverage of more rural areas, generally speaking, often without roaming charges to the customer. CDMA networks may not cover rural areas as well as GSM carriers, and though they may contract with GSM cells for roaming in more rural areas, the charge to the customer will generally be significantly higher.

International Roaming: If you need to make calls to other countries, a GSM carrier can offer international roaming, as GSM networks dominate the world market. If you travel to other countries you can even use your GSM cell phone abroad, providing it is a quad-band phone [phone] MHz). By purchasing a SIM card with minutes and a local number in the country you are visiting, you can make calls against the card to save yourself international roaming charges from your carrier back home. CDMA phones that are not card-enabled do not have this capability, however there are several countries that use CDMA networks. Check with your CDMA provider for your specific requirements.

According CDG.org, CDMA networks support over 270 million subscribers worldwide, while GSM.org tallies up their score at over 1 billion. As CDMA phones become R-UIM enabled and roaming contracts between networks improve, integration of the standards might eventually make differences all but transparent to the consumer.

Answer 2

there are two as i know now..
first are the unfamous MITO - or known as MITO COOLPAD
it has two sim card slots, so your cdma and gsm are both active, it allows both receive messages and calls at the same time, but, if u have receive cdma call, then gsm call has to wait..

The second is samsung W579, the new samsung is the advance type of W569, which different is, W579 allows both active, while w 569 only allows one of them (cdma active, then gsm unactive).
the same progress is the same with MITO COOLPAD


these phones are quite efficient for those who use 2 type of provider (CDMA and GSM). but just watch out the batteries ^o^ GOOD LUCK if u buy one..

VIPer6
Signing off

Answer 3

There is another model called the Samsung IP 830W. It is Sprint's International device that can switch between CDMA and GSM networks.

Answer 4

Sony Ericsson W580i