Re: WAP over SMS?

Is it worth to code it now that new gprs phones don't have wap over sms
option ?


----- Original Message -----
From: "Aarno Syvänen" <[email protected]>
To: "Hanz Hager (ESF)" <[email protected]>
Cc: <[email protected]>; <[email protected]>
Sent: Tuesday, March 26, 2002 11:18 AM
Subject: Re: WAP over SMS?


> Hi Hans,
>
> "Hanz Hager (ESF)" wrote:
> >
> > Hi!
> >
> > Even though it is expensive to WAP over SMS, there is one good reason
for doing so.
> > It might be a long shot, but still a little bit interesting for some
special applications.
> >
> > When you talk on the phone you can not simultaneously have a CSD session
and on most GPRS phones you can not have data communication at the same time
as you talk on the phone. Still, SMS is a bearer that works when you are on
the phone. This means that a WAP push can come to the phone while you speak,
but it also means that a user can use a WAP application while speaking on
the phone. I guess this might be hard if the phone is held next to the ear,
but you can use a hands-free equipment :-)
>
> Yes, it would be nice if Kannel supports as many bearers and phones as
> possible.
> Does this mean that you can accept a call when the phone is performing a
> WAP
> request ?
>
> >
> > Now, having said that - can someone tell me if the job to make Kannel to
support WAP over SMS is a big thing or if this is just not included because
it has low support in the phones and at the operators?
>
> It is quite big thing, but not bigger than for instance writing a new
> SMSC driver ;)
> >
> > If this is the case, maybe you can tell me where to start making the
changes or help me to do it.
> >
> > I have looked a little bit at it and in my view it looks like the only
thing that needs to be done is to make a connection between the smsbox and
that wapbox if there is an SMS with a special UDH (or whatever it is that
designated the WAP over SMS message) and the package the reply to the WAP
request in a return SMS message.
>
> Yes, these are main things. Special UDH is a common way to mark a WAP
> request.
> There are a separate document for implementing WAP over SMPP, but I
> think that we
> should not use it (it defines so many headers that one wonders how many
> bytes are
> left for payload).
>
> Aarno
>
>