Is the original CDMA card the same as the current WCDMA? Can you not change your phone 10

The simplest way to put it: CDMA is China Telecom 133 153 189.

WCDMA is China Unicom's 186, and then 130 131 132 can also be upgraded to 3G in the future, and you can make up a card.

In other words, the current CDMA card, when 3G is popularized in the future, it is OK to change the card.

No! CDMA is the most computing technology, and WCDMA is 3G, first of all, the communication module inside is different, due to the different communication modules lead to other structures are different, even if you get the repair shop to replace the module is impossible, it is worth mentioning that many countries in Europe and the United States 3G are WCDMA, so you can buy a lot of water modification machines, as well as WiFi, but after-sales service is not guaranteed! Now the 3G number must be handled with a mobile phone and ID card.

It's not the same! CDMA is now telecommunications, and CDMA and WCDMA are two different concepts and standards. CDMA is a transition technology for 2G and 3G, and at present, this kind of mobile phone can only use the 133 153 189 segment; WCDMA is Unicom's 3G technical standard!

3G standards include Mobile TD-SCDMA, China Telecom CDMA2000 (EVDO), China Unicom WCDMA. Hope mine can help you, hope!

No, the mobile phone card and mobile phone have to be replaced

The difference between CDMA and WCDMA: CDMA was declared between the second and third generations when the network was built) is now owned by China Telecom (Telecom 3G uses CDMA-2000 standard network). WCDMA is the 3G model (used by most countries in the world, and the technology is relatively mature.

Now only China Unicom uses it.

WCDMA mode mobile phones cannot use cards of 139 of the movement. Because 139 is the GMS network mode owned by China Mobile or partially changed to TD-SCDMA (3G) standard (it is a domestic model with independent intellectual property rights, and the technology has yet to mature). Different modes cannot be used together.

Yes, WCDMA is the meaning of China Unicom 3G. CDMA is equivalent to 2 g

Hehe, this has to be said by the network operator.

The original name was also Unicom, but in 08 Telecom acquired the business project of CDMA network card, so it was called Telecom, so CDMA changed from Unicom's service ** to 10000 service **.

It is a general term for the newly launched wireless network card business of China Unicom, which is divided into HSDPA HSUPA. I won't tell you too much detail here, I'm afraid you'll be confused, and I'll say a little bit about it, you know a little bit.

The difference with CDAM is that the speed is not connected, and the network used is different. CDAM's speed is very slow, but the network is used, and WCDMA is the use of Unicom 3G network, so the speed is very fast (although CDMA used to be also Unicom, but it was acquired by Telecom, so it is divided into Telecom!) ）

The signal transmission system is different ......

Yes, WCDMA is China Unicom's 3G network, and the network speed is incomparable to CDMA. The WCDMA standard speed is. Thank you for adopting.

CDMA is for men.

WCDMA is for ladies.

Telecom 3G mobile phone card, can only use telecom customized mobile phone, telecom 3G is CDMA2000.

It is recommended that you go to Anhui Telecom's online business hall Tianyi store to buy a machine. All mobile phones enjoy the national three-guarantee policy, during the warranty period, after-sales will be free for you to repair, all mobile phones are officially standard, boot invoice, for regular licensed goods. Please feel free to buy.

Telecom online business hall Tianyi hypermarket 3G smart phone, cost-effective, Huawei, Samsung, Motorola and many other well-known brands. I'm sure you'll be able to find a phone that's right for you. Now there is a phone bill free when you buy a phone!

We recommend you a telecom mobile phone.

Samsung i909, dual-mode dual-standby 1G main frequency god machine, 4-inch large touch screen, 5 million pixels, support wireless routing.

Shopping mall price: price reduction notice) to send phone charges (now handle an additional 300 yuan phone bill).

Tianyi Smartphone Festival, the whole site has a big price reduction! New purchase machine into the network gift: a mobile power supply worth 199 yuan 300 yuan phone bill!

All mobile phones in the Tianyi store of Anhui Telecom's online business hall are officially standard, and the invoice is issued when the machine is turned on, which is a regular license. Please feel free to buy.

No, Telecom's card can only be used with Telecom customized mobile phones Telecom 3G is CDMA2000 and Unicom's WCDMA standard is different and cannot be used.