Table of Contents
What is call flow in networking?
Call flow describes the process by which a network routes a call to a mobile device. Even LTE devices still use 3G networks for most voice calls. 3G call flow is different in a GSM network than in a CDMA network.
What is GSM call flow?
CALL FLOW IN GSM Once a Mobile Station initiates a call, a series of events takes place. Analyzing these events can give an insight into the operation of the GSM system.
What is LTE GSM Wcdma?
GSM stands for Global System for Mobile Communications, UMTS stands for Universal Mobile Telecommunications System, and LTE stands for Long Term Evolution (of Mobile Networks). GSM uses TDMA and FDMA for its air interface, UMTS uses WCDMA, and LTE uses a combination of OFDMA and SC-FDMA.
Why do we need call flow?
A call flow is a road map to how calls will be handled from the moment they enter the phone system to the end of the call. Call flows can be used to handle even the most complex call scenarios and enable great customer care.
What is WCDMA only network?
WCDMA (Wide Band Code Division Multiple Access) or UMTS (Universal Mobile Telephone System) is a third-generation (3G) mobile wireless technology – this standard has been developed to accept higher rates up to 2 Mbps (local area access) or 384 Kbps (wide area access).
Is Wcdma the same as CDMA?
The main difference between WCDMA and CDMA is that they are designed to work with different networks. WCDMA is a 3G technology designed to work alongside the 3G GSM network. CDMA, on the other hand, is a 2G technology that is a direct competitor to GSM.
What is APN in IMS?
An Access Point Name (APN) configuration for a carrier data connection. The APN provides configuration to connect a cellular network device to an IP data network.
How can I get WCDMA network?
Select Apps
- Select Apps.
- Select Settings.
- If you see this screen, select CONNECTIONS. If you cannot find CONNECTIONS, continue to the next step.
- Select More networks.
- Select Mobile networks.
- Select Network mode.
- Select GSM only to enable 2G.
- Select WCDMA/GSM (auto conect) to enable 3G.
How do I set up WCDMA?
STEP 2. SELECTING 3G NETWORK
- 3 Under More networks, tap on Mobile networks as shown below :
- 4 Under Mobile networks, tap on Network mode as shown below :
- 5 A pop-up window will appear highlighting the different Network modes . In order to select 3G Network , you need to tap on WCDMA only.
How do I change WCDMA to LTE?
Select Settings
- Select Settings.
- Select Network & Internet.
- Select Mobile networks.
- Select Network mode.
- Select GSM only to enable 2G.
- Select GSM / WCDMA auto to enable 3G.
- Select GSM / WCDMA / LTE auto to enable 4G.
What is a WCDMA SIM card?
WCDMA stands for Wideband Code Division Multiple Access, and is the 3G technology, as defined by the ITU’s IMT-2000 spec, that is used by UMTS and NTT DoCoMo’s FOMA network. WCDMA makes use of many core CDMA technologies created by Qualcomm, though not nearly as many as do regular CDMA carrier networks.
What is GSM and CDMA carriers?
GSM handsets came with a SIM card slot, while CDMA phones did not. In other words, CDMA is a handset-based standard, with a phone number linked to a particular device. If you wanted to upgrade to another phone, you would have to get in touch with the network carrier, de-activate the old device and activate the new one.