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The brief introduction of SMS is
it is a service that is used to send messages through one network to another network OR
through a cell phone to another cell phone.
SMS is short for "Short message Service"

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Posted by jahangir1983

The brief introduction of SMS is
it is a service that is used to send messages through one network to another network OR
through a cell phone to another cell phone.
SMS is short for "Short message Service"

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Posted by jahangir1983

The SMS (Short Messaging Service) that allows a SME (Short Message Entity) to send short text messages to other SME.

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Posted by justfawad

short message service a relatively data commuication service with low data rates in mobile cellular environment used mostly in GSM, GPRS and EDGE technology sms is a service that allow text messaging between various customers using their mobile phones. sms use alphanumeric characters and restricted to only 160 characters.

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Posted by sizzlingfauji

Short message service is a mechanism of delivery of short messages over the mobile networks.

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Posted by sagitraz

Router are for following funcctions

Routing
Stop broadcasting Domain

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Posted by sagitraz

SMS (Short Message Service), commonly referred to as "text messaging," is a service for sending short messages of up to 160 characters (224 characters if using a 5-bit mode) to mobile devices, including cellular phones, smartphones and PDAs.

SMS is similar to paging. However, SMS messages do not require the mobile phone to be active and within range and will be held for a number of days until the phone is active and within range. SMS messages are transmitted within the same cell or to anyone with roaming service capability. They can also be sent to digital phones in a number of other ways, including:

* From one digital phone to another
* From Web-based applications within a Web browser
* From instant messaging clients like ICQ
* From VoIP applications like Skype
* From some unified communications applications.

Typical uses of SMS include:

* Notifying a mobile phone owner of a voicemail message
* Notifying a salesperson of an inquiry and contact to call
* Notifying a doctor of a patient with an emergency problem
* Notifying a service person of the time and place of their next call
* Notifying a driver of the address of the next pickup
* Enhanced Messaging Service (EMS), an adaptation of SMS that allows users to send and receive ringtones and operator logos, as well as combinations of simple media to and from EMS-compliant handsets.

Many of these uses depend upon short telephone numbers called common short codes (CSCs), usually consisting of five digits, that are used to address SMS and MMS messages from cellular telephones.

In recent years, SMS spam has become an issue for some users, as has SMiShing, a security attack in which the user is tricked into downloading a Trojan horse, virus or other malware onto a cellular phone or other mobile device.

Users can send messages from a computer via an SMS gateway. SMS gateways are Web sites that allow users to send messages to people within the cell served by that gateway. They also serve as international gateways for users with roaming capability.

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Posted by saqlain231

ntroduction

Short message service is a mechanism of delivery of short messages over the mobile networks. It is a store and forward way of transmitting messages to and from mobiles. The message (text only) from the sending mobile is stored in a central short message center (SMS) which then forwards it to the destination mobile. This means that in the case that the recipient is not available, the short message is stored and can be sent later. Each short message can be no longer than 160 characters. These characters can be text (alphanumeric) or binary Non-Text Short messages. An interesting feature of SMS is return receipts. This means that the sender, if wishes, can get a small message notifying if the short message was delivered to the intended recipient. Since SMS used signaling channel as opposed to dedicated channels, these messages can be sent/received simultaneously with the voice/data/fax service over a GSM network. SMS supports national and international roaming. This means that you can send short messages to any other GSM mobile user around the world. With the PCS networks based on all the three technologies, GSM, CDMA and TDMA supporting SMS, SMS is more or less a universal mobile data service.

à Note: The actual limit of size of SMS is 160 characters if Latin alphabets are used. If non-Latin alphabets like Chinese or Arabic are used, the limit is 70 characters.
How does SMS work

The figure below shows a typical organization of network elements in a GSM network supporting SMS.

The SMC (Short Message Center) is the entity which does the job of store and forward of messages to and from the mobile station. The SME (Short Message Entity) which can be located in the fixed network or a mobile station, receives and sends short messages.

The SMS GWMS (SMS gateway MSC) is a gateway MSC that can also receive short messages. The gateway MSC is a mobile network’s point of contact with other networks. On receiving the short message from the short message center, GMSC uses the SS7 network to interrogate the current position of the mobile station form the HLR, the home location register.

HLR is the main database in a mobile network. It holds information of the subscription profile of the mobile and also about the routing information for the subscriber, i.e. the area (covered by a MSC) where the mobile is currently situated. The GMSC is thus able to pass on the message to the correct MSC.

MSC (Mobile Switching Center) is the entity in a GSM network which does the job of switching connections between mobile stations or between mobile stations and the fixed network.

A VLR (Visitor Location Register) corresponds to each MSC and contains temporary information about the mobile, information like mobile identification and the cell (or a group of cells) where the mobile is currently situated. Using information form the VLR the MSC is able to switch the information (short message) to the corresponding BSS (Base Station System, BSC + BTSs), which transmits the short message to the mobile. The BSS consists of transceivers, which send and receive information over the air interface, to and from the mobile station. This information is passed over the signaling channels so the mobile can receive messages even if a voice or data call is going on.
Applications

Some of the common applications of SMS are:

* Exchanging small messages like "See you at 8.30 tonight at xyz". SMS is particularly suited for these kinds of short messages because SMS is much cheaper than calling some one and giving the same message. Calling some one to give the same message would invariably take more time and hence more cost.
* Many operators offer e-mail service over SMS. Every user is assigned an e-mail address at signup and any message delivered to that email is converted to short messages and delivered to the mobile.
* It is possible to send e-mail messages (less than 160 characters) from a mobile phone to any e-mail address via SMS.
* Information services like news, weather, entertainment and stock prices etc. can be availed just by sending a keyword like NEWS, WEATH etc to the short message center number.
* SMS can be used by the network operators to provide services like balance enquiry in case of prepaid cards using SMS.
* Mobile chatting is one more hot application of SMS
* SMS can be used to notify users that they have received new voice-mail or fax messages.
* It provides an alternative to alphanumeric paging services
* Using SIM-Toolkit, now a part of GSM specifications, SMS can be used to have on the air activation of features. By sending codes embedded in short messages from the server network operators can remotely provision the user's wireless terminal
* Internet e-mail alerts.
* Downloading new ring tones.

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Posted by saqlain231

Short Message Service (SMS) is a communication service standardised in the GSM mobile communication system, using standardised communications protocols allowing the interchange of short text messages between mobile telephone devices. SMS text messaging is the most widely used data application on the planet, with 2.4 billion active users, or 74% of all mobile phone subscribers sending and receiving text messages on their phones.[citation needed] The SMS technology has facilitated the development and growth of text messaging. The connection between the phenomenon of text messaging and the underlying technology is so great that in parts of the world the term "SMS" is used as a synonym for a text message or the act of sending a text message, even when a different protocol is being used.

SMS as used on modern handsets was originally defined as part of the GSM series of standards in 1985[1] as a means of sending messages of up to 160 characters (including spaces), to and from GSM mobile handsets.[2] Since then, support for the service has expanded to include alternative mobile standards such as ANSI CDMA networks and Digital AMPS, as well as satellite and landline networks.[citation needed] Most SMS messages are mobile-to-mobile text messages, though the standard supports other types of broadcast messaging as well.

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Posted by waqasahmad

SMS (Short Message Service) is a mobile data service that allows alphanumeric messaging between mobile phones and other equipment such as voice mail systems and email. Message length (140 to 160 charecters) depands on the cellular network as CDMA & GSM etc.

SMS is a store-and-forward system. SMS can be two types:
1. MO= Mobile Originated: When the MS sends a message.
2. MT= Mobile Terminated: When the MS recieves a message.

Advanced Messaging type:
1. EMS: Enhanced Message Service: An version of Short Messaging Service (SMS) is comprised of several text messages that are clustered together.
2. MMS: Multimedia Message Service: provides a technical solution of even richer media including text, sounds, images and video to MMS capable handsets.

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Posted by pkverma_81