0
The network operator has all the serial numbers of their phones in their data base. The serial number is also written on the phone themselves under the battery. For whatever reason, CDMA carriers are too concerned about what phone you're using unlike GSM carriers that don't monitor your every move. In GSM the carrier is only concerned about the SIM card and not the phone. In CDMA the operator doesn't have a SIM to track, so they worry about the phones themselves. CDMA is a very restrictive, oppressive technology. They lock down their phones to the carriers so you can't take your phone to a different carrier, unlike GSM. GSM is the way to go if you like freedom.
What else can I help you with?
Will a CDMA sim card work in a next g mobile phone?
There is no such thing as a CDMA SIM card, since CDMA phones do not use SIM cards.
Are HTC phones CDMA?
Not all HTC phones are powered by CDMA.Some of CDMA phones are :HTC S720 (CDMA)HTC P4000 (CDMA)
Can spint phones work with ATT?
No they will not work with AT&T. AT&T uses a GSM network that requires SIM cards and Sprint uses CDMA that does not require SIM cards. The two networks are not even remotely compatible.
Can you put a Verizon sim in a att phone?
No you cannot. CDMA phones do not accept SIM cards.
Overview of CDMA Cell Phones?
Code Division Multiple Access or CDMA cell phones utilize a technology that permits the use of several frequencies at the same moment to send and receive data and voice transmissions. CDMA is newer radio technology that is designed to compete with the older Global System for Mobile Communications (GSM) network. As a result, CDMA phones cannot use GSM cell towers. Another difference is that GSM phones use SIM cards while CDMA phones do not.
How do you unlock verizion phone model SCH-U900V?
Short answer is you can't. Verizon uses a CDMA network and does not use SIM cards, only GSM devices that require SIM cards get unlocked. CDMA devices have to be flashed, which is where they load the new service provider's software onto your device. You have to take the device to a shop that works on cell phones to have that done.
How do you remove a sim card from a Verizon Motorola Razr?
There is no sim card in Verizon, Sprint, or Alltel phones. The reason is that they operate on CDMA technology which does not require sim cards.
Will CDMA sim will work in WCDMA mobile?
There is no such thing as a CDMA SIM card.CDMA is a technology which doesnt use SIM cards.And WCDMA is evolved from gsm and uses SIM cards for 3g.
Metro pcs unlock code?
Metropcs phones run on CDMA technology and right now, there is no unlocking solution for CDMA-based phones, only for GSM phones.
Is Samsung epic 4g a CDMA phone?
As with all Sprint phones, the Epic is CDMA
How do you unlock an Alltel Motorola V710 to program Telus?
Alltel phones run on CDMA technology, and there currently is no unlocking solution for CDMA phones.
Can you put the CDMA sim card to the gsm phone?
CDMA and GSM are Radio technologies and mobile Phone is just an Antenna to receive these Radio Signals. Since both the technologies work on different frequency range and has different modulation shemes therfore the mobile phones for both are different.Apart from this 3G tehchnology which is combination of both GSM and CDMA (WCDMA) is compatible with both GSM and CDMA. So a 3G mobile can serve for both GSM and CDMA radio signals.SIM (Subcriber Idendity Module) is consists of Credential for network authorization. Since Both GSM and CDMA technologies has different Authorization functions and parameters hence both SIMs are different. Note: In CDMA technology SIM is often called as RUIM (Removable User Idendity Module).CDMA uses Different Frequencies than GSM. CDMA also does not require a SIM card.Now some companies do provide SIM cards for CDMA connections also, such as Reliance communications and TATA Indicomm in India.CDMA can hold more calls per channel on their towers, while GSM drops alot of calls. That is why people are always complaining about T-Mobile and At&t dropped calls. GSM is used internationally while CDMA is mostly used in the domestic United States. CDMA carriers are Verizon, Alltel, Sprint, Cricket....while GSM carriers here in the U.S. are T-Mobile and At&t.
