GSM Communication
The first and main difference is the work of cdma phones in low frequencies of 800 MHz. With this coverage cdma towers to 40 km. This signal towers more diffuse and thus not stable in zones covering cdma phone works better stable. cdma technology includes a coded signal is split by A-kay code, T, E, all cdma phones are simultaneously in the air and using the A-kay code is allocated desired subscriber. Each customer is using the entire channel width, due to this quality of communication in times better than gsm, the quality is very close to the fixed networks.
cdma or cdma 2000 communication more progressive it is more adapted to the 3G connection, this CDMA2000 1xEV-DO, what is the main difference from the gsm communication. Already in all regional centers of technology work 1XEV-DO Rev A. This rate 3.1Mb/sek. Receive and 2mb/sek. to transfer it allows you to talk on Skype, the voice quality and picture perfect, with the radiation from these devices is 20 times less than the gsm communications. Little about the numbering resource. Imagine you can from your home phone with direct dialing to go to rest in the Crimea or the Carpathian Mountains.
When you activate the services 'entire network', you can travel throughout the Ukraine, with direct dialing. There are firms that are located in and Kyiv number used. You can advertise with the numbers one city and receive calls in another city. This is convenient both for business and for Home About Regions: Imagine you live in a remote village. You to conduct your home phone with a direct number to reserve a room at the local exchange, long wait when you can find a free port, then dig a few hundred meters in the pit under the cable, then buy an expensive cable and bury it. After all this, you need to wake to pay fees more expensive than tariffs or cdma intertelecom. Or buy a cdma phone with a direct number for your region spent 20 minutes on clearance, and you have a home number.
Tags: communications