thanks for your straight and great advice.... do you use SMPP? i am planning to get connected to my provider Via SMPP, but i have afew question, they are probably generic to all direct connections. 1) how does a Provider assign a phone number to a SMPP port? 2) if a provider currently only charges users for outgoing messages( MO) , how can they bill a user who request PUSH messages like email and sport notification 3)i know a lot about GSM Providers but what protocol are supported by CDMA/TDMA/PCS SMSc? thanks.
what proto ----- Original Message ----- From: "Dave White" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, October 30, 2001 8:28 AM Subject: Re: best AT modem? > Patrick Mignott wrote: > > >hi all, > >what is the best AT modem to work with kannel? and the reasons for you > >opinion please. > > > > There are no good GSM modems to use to handle incoming SMS messages. The > way SMS is implemented prohibits it. > > While I realize that many people here regularly use GSM modems to > receive SM's, and that the ability to do so is an attractive feature for > many developers, please consider what happens if your service is a > raging success. > > Your user's SMS-MO is accepted by an operator's SMSC, and stored for > future forwarding. It will then be forwarded to the GSM modem as an SMS-MT. > > Since the SMSC can only deliver 1 message every few (3-6) seconds with > NO windowing whatsoever, if messages come in more quickly, they will be > stuck in the operator's SMSC. Depending on the SMSC vendor, the storage > space may be shockingly limited, and the behavior of the SMSC may become > rather pathological once the database gets 'too full'. (Ahem... I am > thinking of a certain... umm.. Finnish vendor as I write this.) > > Using the AT modules for development is not a problem -- the problem is > that a successful SMS service, especially a "quiz show" type > application, will cause spikes of activity that can disable SMS on some > or all of an operator's network. > > Be careful. You do not want to break the networks you are using, and you > do not want to be disconnected because you came up with a service > everybody wants to use. > > HTH, > > David WHITE > CONNECT AUSTRIA > > >