Austin, If you connect a GSM modem or a cell phone using a serial, Kannel will act as some kind of "robot": It will read incoming messages from the sim card, and it will send messages using the modem/AT protocol. You'll pay exactly as if you were using the phone manually. That means: you'll pay for outgoing messages and you wont pay incoming messages.
There are many protocols to connect to SMSCs. Most popular is by far SMPP, but also CIMD and UCP/EMI. Check Kannel docs, there are a section for each one there. Each carrier will let you connect using the protocol they have, I'm afraid. Carriers are not usually very flexible regarding anything... Kannel can interact in many ways with apps: It can GET or POST to a given URL when a message arrives. It can send messages via an URL GET or POST also. It can execute a local command and use the output as a response. It can respond with a predefined text. Check the docs, it's all there! :) Most useful method is GET/POST via the sendsms interface of course. You can use any language you like for that: PHP, Java, ASP, Perl, C, Python, whatever you like most, as long as it can implement a CGI interface (GET/POST). You can even use XML. Hope it helps, PS: I recommend you to reply to the list, so other can share your comments/doubts and learn/help in the process. On Fri, 04 Feb 2005 16:42:32 -0500, Austin Chang <[EMAIL PROTECTED]> wrote: > Hi Alejandro, > > Thank you for your response. I hope you don't mind if i ask you some more > questions. > > I will still have to pay for the monthly fee for the oporator costs and the > outgoing SMS costs for the SIM card in the GSM modem but do i also pay for > incoming SMS messages to the system? > > What are all the different protocols for connecting to the SMSC? Is that > going to affect compatibility with different carriers? > > How hard is it to connect the Kannel system to an application and read SMS > messages and send system derived messages? What kind of applications can > Kannel interact with? C? php? java? > > Thanks again and i appreciate you help! > > cheers.austin > > Date: Wed, 2 Feb 2005 19:56:21 +0100 > From: Alejandro Guerrieri <[EMAIL PROTECTED]> > Subject: Re: first time user setting up > To: "[email protected]" <[email protected]> > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=US-ASCII > > Austin, > > If you don't need a dedicated shortcut number and you don't want to > charge your users a special fee for using your service, you can > achieve that using a GSM modem or a cell phone featuring an AT > compatible modem. > > Some details to have in mind: > > You'll have to connect your modem or cell phone to the PC running > Kannel using a serial cable (that's a "real" serial or USB). You'll > have to configure your OS to recognize the modem and probably install > some sort of driver for the cable/modem. > > Your modem will need a SIM Card with a regular subscription service, > as you'd do with a regular cellphone. If you have an AT-Capable > cellphone, the same applies. > > Kannel will use the modem to send and receive messages. > > People from any network will be able to send messages to your number, > as if it were a regular phone. Operators will charge them for their > messages as they would do with any other SMS message. > > YOU (the line from the SIM card, I mean) will be charged for the > outgoing SMS messages. Pricing will be the same as sending a regular > SMS from your phone. > > If that fits you, then that's your best option. You'll have to pay for > your outgoing messages and you won't get a dime from the incoming, > though. > > On the other hand, if you don't want to pay that much, or if you want > to receive a share from the operators, you'll need to setup a > dedicated connection with each operator on your country. That could be > by direct means or contracting a third party aggregator. That depends > entirely on your preferences, I think that you should evaluate the > options on your country and, if you're not an expert in mantaining > SMPP links with operators, I'd go for the aggregator option. > > Hope it helps, > > -- Alejandro Guerrieri Magicom http://www.magicom-bcn.net/
