What is DROPPED CALL? What does DROPPED CALL mean? DROPPED CALL meaning – DROPPED CALL definition – DROPPED CALL explanation.
Source: Wikipedia.org article, adapted under license.
A dropped call is a common terminology used and expressed by wireless mobile phone call subscribers is abruptly cut-off (disconnected) during midconversation. This happens less often today than it would have in the early 1990s. The termination occurs unexpected and is influenced by a number of different reasons such as “Dead Zones.” In technical circles, it is called an abnormal release.
One reason for a call to be “dropped” may occur when the mobile phone subscriber travels outside the coverage area—the cellular network radio tower(s). After a telephone connection between two subscribers has been completed; it must remain within range of that subscribers network provider or that connection will lost (dropped). Not all cellular telephone radio towers are owned by the same telephone company (though this is not true to all locations) be maintained across a different company’s network (as calls cannot be re-routed over the traditional phone network while in progress), also resulting in the termination of the call once a signal cannot be maintained between the phone and the original network.
Another common reason is occurs when a phone is taken into an area where wireless communication is unavailable, interrupted, interfered with, or jammed. From the network’s perspective, this is the same as the mobile moving out of the coverage area.
Occasionally, calls are dropped upon handoff between cells within the same provider’s network. This may be due to an imbalance of traffic between the two cell sites’ areas of coverage. If the new cell site is at capacity, it cannot accept the additional traffic of the call trying to “hand in.” It may also be due to the network configuration not being set up properly, such that one cell site is not “aware” of the cell to which the phone is trying to handoff. If the phone cannot find an alternative cell to which to move that can take over the call, the call is lost.
Co-channel and adjacent-channel interference can also be responsible for dropped calls in a wireless network. Neighbouring cells with the same frequencies interfere with each other, deteriorating the quality of service and producing dropped calls. Transmission problems are also a common cause of dropped calls. Another problem may be a faulty transceiver inside the base station.
Calls can also be dropped if a mobile phone at the other end of the call loses battery power and stops transmitting abruptly.
Sunspots and solar flares are rarely blamed for causing interference leading to dropped calls, as it would take a major geomagnetic storm to cause such a disruption (except for satellite phones).
Experiencing too many dropped calls is one of the most common customer complaints received by wireless service providers. They have attempted to address the complaint in various ways, including expansion of their home network coverage, increased cell capacity, and offering refunds for individual dropped calls.
Various signal booster systems are manufactured to reduce problems due to dropped calls and dead zones. Many options, such as wireless units and antennas, are intended to aid in strengthening weak signals.