Alejandro Guerrieri schrieb:
> Carlos,
> 
> Of course you could program a system that responds an SMS with a
> wap-push that points to a particular wap page, but I'm not sure if
> that's what you're trying to achieve. Could you please clarify further?
> 
> Regarding sending wap pages using SMS transport, that sounds a lot like
> [EMAIL PROTECTED] which is precisely that (a subste of wml over SMS 
> transport). If
> that's the case, Kannel cannot help you on that department, you'd need a
> [EMAIL PROTECTED] gateway for that.

what is [EMAIL PROTECTED] Any URL reference for that?

A WAP Push can have a WML conent-type as payload. From a protocol architecture
this is possible, as the PPG (push proxy gateway) knows how to encode this.

The problem is (like most times) on the device side. I don't know exactly how
many devices are out there that DO support WAP push messages, but KNOW how to
interpret WML pushed payload too. Obviously they know how to display WML, using
the browser component in the device. But the WAP Push component has usually an
"own browser" that does the handling. So there is no nice "registry mime type"
correlation as we know if from the Windows world ;)

In addition USSD may be used for what you intend to do. But this requires again
more dependencies in the core network structure and a dedicated USSD gateway 
too.

The way I would do it:

- let the user initiate, via a normal MO SMS keyword
- send a WAP push SI (session indication) to the user, this will pop up on the
screen and ask the user if he wants to make his decission.
- the user can either say "yes" or "no", yes means opening the embeded URL.
- and the URL is your WML deck with the decision A or B.

This has the benefits:

a) you know that SI documents work on any WAP push capable phones, no failures.
b) adding a session ID to the URL in the SI, maps the MSISDN of the user into
your application, so when the user "comes into" the application you know who it
is by MSISDN number, which makes later notifications or other SMS transmissions
MT wise very easy to him

Stipe

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