17-05-2012, 05:03 PM
PAGING SYSTEM
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Paging Systems are wireless communication systems that are designed to send brief messages to a subscriber. It's a one-way messaging system in which Base Station send messages to all subscribers. The Paging System transmits the message also known as Page, along with Paging System access number, throughout the service area using Base Station, which broadcast the page on a radio link.
Types of Paging Systems
The Paging Systems can be of two types.
Manual Paging System: In a manual paging system, a message is sent to the paging operator through telephone call by the caller. The message is then delivers to the pager through paging network by the operator. Automatic Paging System: In an automatic paging system, the incoming requests are automatically processed by the paging terminal and then this information is delivers to the pager. Automatic Paging Systems are mostly used.
Messages in Paging Systems
One of the following four types of information messages can be delivered in a Paging System.
Alert Tone Message Voice Message Digital String Message Text String Message
Alert Tone Message: In the alert tone message, a dedicated telephone number is assigned to the receiver, which is also known as Tone Pager. The pager is triggered by dialing the number. To generate tone-type messages, the advantage of tone paging is that it utilizes a small amount of airtime.
Voice Message: In the voice message, a voice message can be transmitted in some tone paging systems after the beep.
Digital String Message: In digital string message, the receiver is a Numeric Pager. The string can be the telephone number of the caller or a coded message. This coded message is generated on request of the caller by the paging center and is decoded by a codebook built into the pager. This type of paging takes less amount of airtime.
CORDLESS TELEPHONE SYSTEM
A cordless telephone or portable telephone is a telephone with a wireless handset that communicates via radio waves with a base station connected to a fixed telephone line, usually within a limited range of its base station (which has the handset cradle). The base station is on the subscriber premises, and attaches to the telephone network the same way a corded telephone does.
The base station on subscriber premises is what differentiates a cordless telephone from a mobile telephone. Current cordless telephone standards, such as PHS and DECT, have blurred the once clear-cut line between cordless and mobile telephones by implementing cell handover, various advanced features, such as data-transfer and even, on a limited scale, international roaming. In these models, base stations are maintained by a commercial mobile network operator and users subscribe to the service.
[attachment=22302]
Paging Systems are wireless communication systems that are designed to send brief messages to a subscriber. It's a one-way messaging system in which Base Station send messages to all subscribers. The Paging System transmits the message also known as Page, along with Paging System access number, throughout the service area using Base Station, which broadcast the page on a radio link.
Types of Paging Systems
The Paging Systems can be of two types.
Manual Paging System: In a manual paging system, a message is sent to the paging operator through telephone call by the caller. The message is then delivers to the pager through paging network by the operator. Automatic Paging System: In an automatic paging system, the incoming requests are automatically processed by the paging terminal and then this information is delivers to the pager. Automatic Paging Systems are mostly used.
Messages in Paging Systems
One of the following four types of information messages can be delivered in a Paging System.
Alert Tone Message Voice Message Digital String Message Text String Message
Alert Tone Message: In the alert tone message, a dedicated telephone number is assigned to the receiver, which is also known as Tone Pager. The pager is triggered by dialing the number. To generate tone-type messages, the advantage of tone paging is that it utilizes a small amount of airtime.
Voice Message: In the voice message, a voice message can be transmitted in some tone paging systems after the beep.
Digital String Message: In digital string message, the receiver is a Numeric Pager. The string can be the telephone number of the caller or a coded message. This coded message is generated on request of the caller by the paging center and is decoded by a codebook built into the pager. This type of paging takes less amount of airtime.
CORDLESS TELEPHONE SYSTEM
A cordless telephone or portable telephone is a telephone with a wireless handset that communicates via radio waves with a base station connected to a fixed telephone line, usually within a limited range of its base station (which has the handset cradle). The base station is on the subscriber premises, and attaches to the telephone network the same way a corded telephone does.
The base station on subscriber premises is what differentiates a cordless telephone from a mobile telephone. Current cordless telephone standards, such as PHS and DECT, have blurred the once clear-cut line between cordless and mobile telephones by implementing cell handover, various advanced features, such as data-transfer and even, on a limited scale, international roaming. In these models, base stations are maintained by a commercial mobile network operator and users subscribe to the service.