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Sending SMS with use of the Internet

The system of an exchange of short text messages - short message service - has appeared at a dawn of development of mobile communication{connection} and after practically full withdrawal{waste} from paging communication{connection} has recommended itself as the alternative form of dialogue between subscribers of mobile communication{connection} worldwide. However, as any commercial service, at sms has obvious and implicit merits and demerits.


Comparative cheapness of service and its{her} support concerns to number of first of them on all mobile phones, any standard of communication{connection}. It is possible to attribute{relate} inconvenience of transfer to the second the operator of letters of the alphabet - latin letters about 160 symbols in one message, letters of slavic alphabets - up to 70 symbols (thus are possible to pass long messages tarificirujutsja the operator as a little). Thus mobile phones support the long messages made from several long, that not always it is possible to say about operators of cellular communication (last part sms not always reaches).


For coding sms the 7-bit coding is used, in a case if the text will consist only of symbols of the latin alphabet. As the maximal volume sms according to standards makes 1120 bats it is possible to count a maximum quantity of symbols (1120 to divide{share} on 7 and to receive 160). As soon as in the text there is a symbol, for example the cyrillic alphabet, the coding varies with 7-bit on unicode on 2 bajta on a symbol. The maximal volume then decreases up to 70 signs (1120 shares on 16).


Other question concerns cost of the service. Service of transfer / reception sms does not demand in most cases a user's payment, but frequently cost of transfer of 1 message is comparable to 1 minute of the voice traffic, and basically, in 160 symbols is unreal to enclose that is possible to say one minute of conversation. Besides, if your interlocutor cannot talk or you pass the information which can be deformed by conversation the best decision will be sending of the message.


Recently on development of sms-services (exchange rates, the help information, payment of services, entertainments) also are directed efforts of operators of cellular communication. One of such decisions is the sms-subscription to access to the information determined a sort (for example, the Savings Bank of Russia gives dispatch of sms-notices on a status of your bank bill on a plastic card), and another - sending free-of-charge sms through the Internet. I also shall consider{examine} the second direction in given clause{article}.


Methods of sending sms through the Internet


The given methods are not settled{exhausted} by sending of messages with use of a computer, similarly there can appear and phone (through gprs), and a handheld computer (through any wireless connection).


Method the first. Official sites of operators of cellular communication

The most simple is sending of messages directly from sites of the operator, filling in the certain form of sending - number{room} of the subscriber (and he exclusively concerns to a zone of service), the text of the message (up to 160 symbols, and cyrillics is not always supported) and a code of a picture, for restriction of loading on the server and identification of the user. In a result on phone of the addressee there comes the message containing the text of the sender, as number{room} service number{room} of the operator acts, but completely there is no information on the sender of the message (it  ip, time, a phone number).


So it is possible to dispatch anonymously advertising, to check existence of number{room} of the subscriber and free-of-charge to communicate, that the most important.


Minus is, first, in the majority congestion of the server and delay of arrival of messages, second, binding to the certain site of the operator, thirdly, absence of identification of the sender.


Sending sms to subscribers "Vympelcom" (the trade mark - "Biline"):


http://www.beeonline.ru/portal/comm/send_sms/simple_send_sms.sms


The cursor of the form allows to send sms both to unregister users, and registered (to subscribers "Biline"), thus the message will consist of 156 symbols, begins with the text bol (beeonline), automatically is not translated in translit. The registered users can use a notepad and receive notices on delivery of the message to themselves on phone or on e-mail address.


Simple users can receive the report on delivery only as the web-interface.


Sending sms to subscribers " the Megaphone Northwest ":


http://www.megafonnw.ru/site/rus/sms


The page of sending of messages abounds advertising, but the basic advantage is sending of messages in translite, their display to the screen of phone right after receptions (flash sms), the deferred sending.


Sending sms to subscribers of MTS:


http://www.spb.mts.ru/sendform_sms.htm


The server of MTS is protected from an overload not by input of a code of a picture, but restriction of sending of messages from one computer in day, that on other servers is absent. For sending messages to subscribers of MTS of Saint Petersburg mobile number{room} should be seven-element with a prefix 7812, 7911. For example, 7812xxxxxxx.


Sending of messages to subscribers tele2:


http://spb.tele2.ru/517/article.aspx


The interface of the form of sending of messages is extremely simple, restrictions on sending of messages no.


Sending of messages to subscribers "Skajlink":


http://app.spb.skylink.ru:7771/my_service/sms.jsp


Saint Petersburg and Leningrad region


Phone number of the caused subscriber in a format:

8901xxxxxxx or 8812xxxxxxx


The text of the message (no more than 122 symbols):

Sending no more than 5 messages within day is accessible.


Method of the second. Entertaining portals


The method a little than differs from above described, except for that that on portals the mechanism of sending of messages from any addressee (i.e. it is possible to write number{room} which will be displayed) is realized. An example of such portal-


http://viewlink.ru section freesms.


Method the third. anonymmailer


anonym mailer allows to send messages from any address on any phone. At start of the program fields " from whom are filled: " (there it is possible to enter everything, for example my@mail.server, then the text is written and the most important field - " to whom is filled: ". Many operators of cellular communication give the clients a mail box of type: " +7nomer abonenta@sms.operator.ru " (for example, +7905 ******* @sms.beeline.ru). The address of mail can be learned{be found out} from the operator. In a result there comes the message of a kind:

number: service number{room} (it is usual 3-4-znachnyj)


From: my@mail.server;

message: the text of the message


Also it is possible to adjust, that sending went through a proxy absolutely to provide anonymity.


Method the fourth. mail agent


mail agent is a software product of a portal mail.ru (www.agent.mail.ru), positioned as alternative to system of an exchange of instant messages icq or msn. Functions of the program include sending sms to subscribers of mobile communication{connection} of all world, and free-of-charge. From restrictions it is necessary to note sending no more than one message one minute. The program "is adhered" to system mail.ru, therefore you will not write any address of mail - he all the same will be real. Also, that obviously it is not marked by developers, in mail agent the quantity{amount} of signs for sending the message - up to 135 symbols on latinice (it is stipulated translit including automatic at sending), up to 35 symbols on cyrillics is reduced. The history of messages, support of emoticons ("smileys") is stipulated. The version of the program also is accessible to installation on smartfony under management symbian os. Consumption of the traffic concerns to lacks of the program (especially appreciablly on smartfone) and its{her} appeal for trojanov and worms - for half an hour of job of the program in working midday at the author of clause{article} fajervoll an antivirus avast! Has reflected 10 attacks.


Also on phone of the subscriber comes the message containing besides the text of the message, advertising mail agent and the address of a mail box from which the message has been sent that can represent real threat of safety of the sender for breaking mail. From other features it is necessary to note an opportunity of the answer to the message directly in system mail agent, by sending the message on four-unit number{room} - and the sender your message, the truth, the given service already paid - will see 0, 25 cents for one message on number{room} 2645 (mail agent).


Method the fifth. smart sms


The program sends besides messages as well ringtony and trade marks of the operator. It is adjusted through gates (gate) a gateway of the server which is responsible{crucial} for sending of messages (the information it is possible to find in the Internet). Sending works as under the report tcp/ip, and using a proxy.


Method of the sixth. web-pagers


web-pagers, such as icq, aol, msn, realize sending messages for users if at them their number{room} of mobile phone is specified. So, in icq messages can be sent on number{room} of the subscriber, be divided{shared} on 160 symbols and without restrictions. As the identifier will act uin the user and his  name displayed in the client. But it is necessary to pay special attention that exist still spamboty, sending advertising through reports icq, msn, thus some messages can contain a virus code.


The conclusion


Sending sms at cost is lower, than at operators of cellular communication, or completely free-of-charge as we can observe in the Internet, it appears rather complex  and frequently burdensome employment{occupation}, in particular, if you do not have connection to the Internet or your phone with the monochrome display and without support java. But all the same, from the point of view of the author, the most preferable looks sending of messages from web-pagers and systems of post agents (anonym mailer, mail agent), allowing with the minimal expense for the traffic to send messages to subscribers of mobile networks.