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Re: SMS and AT commands

Posted: 12-29-2003, 07:35 PM
Peter_L
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Hi

According to the responses of CPMS? the phone seems to have only 11 messages
recognized?
If you can get the 44 messages via MMI menu then it would be interesting to
know how the other 33 messages differ to the available 11 messages?
Are the additional 33 messages maybe only outgoing messages(SMS-SUBMIT) or
maybe status reports and that's why CPMS does not report them???
If CPMS=? returns +CPMS: ("SM"),("SM"),("MT") then this means that the
phone does not offer other choices of memory for CPMS set-command.
If it would be possible to switch to MT memory then CPMS=? would return
responses like +CPMS: ("SM","MT"),("SM","MT"),("MT") , so it is OK that
CPMS="MT" returns ERROR because the phone does not support it.
Usually MT is a combination of SM+ME, what if you try to send
AT+CPMS="SM","SM","SM" ??? Does the phone accepts this?

From my experience I can say that the implementation of the various GSM
07.07 AT-Commands in many GSM phones are sometimes buggy and do not exactly
follow the GSM standard. It could be that you can not read out all 44
messages because of a faulty AT-command implementation.
Regards
Peter

"Christoph Hölken" <chrhoelken@gmx.de> schrieb im Newsbeitrag
news:bspseo$liv$06$1@news.t-online.com...
> Hi there,
>
> having failed just again to communicate with my cell phone via AT
commands,
> I've to ask for your help.
>
> My problem is that I'm unable to retrieve a list of SMS available on the
> device. AT+CMGL=4 retrieves a list of messages, but unfortunately an
> incomplete one (about 11 out of 44). Suspecting that the wrong memory
> storage is selected, I tried AT+CPMS. AT+CPMS=? displays
> +CPMS: ("SM"),("SM"),("MT") and AT+CPMS? results in
> +CPMS: "SM",11,15,"SM",11,15,"MT",11,15. But every attempt to actually
> change the selected storage (eg. by AT+CPMS="MT") fails with a simple
> ERROR message.
>
> I can reproduce this on a Nokia 6600 as well as an older Siemens S45i. As
> with both devices the problems are similiar, I guess there is some mistake
> in my approach.
>
> Any reply will be greatly appreciated!
>
> TIA,
> Christoph


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Responses to "Re: SMS and AT commands"

Christoph Hölken
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Re: SMS and AT commands
Posted: 12-29-2003, 08:54 PM
"Peter L" schrieb:

> According to the responses of CPMS? the phone seems to have only 11 messages
> recognized?
> If you can get the 44 messages via MMI menu then it would be interesting to
> know how the other 33 messages differ to the available 11 messages?
> Are the additional 33 messages maybe only outgoing messages(SMS-SUBMIT) or
> maybe status reports and that's why CPMS does not report them???

Having decoded the PDUs, it appears to me as if the 11 messages available
are the one stored on the SIM card.

> If CPMS=? returns +CPMS: ("SM"),("SM"),("MT") then this means that the
> phone does not offer other choices of memory for CPMS set-command.

Given that, my assumption above would make sense, wouldn't it? Thanks
for clarifing on that issue anyway, will spare me some time.

> If it would be possible to switch to MT memory then CPMS=? would return
> responses like +CPMS: ("SM","MT"),("SM","MT"),("MT") , so it is OK that
> CPMS="MT" returns ERROR because the phone does not support it.
> Usually MT is a combination of SM+ME, what if you try to send
> AT+CPMS="SM","SM","SM" ??? Does the phone accepts this?

No, unfortunately it also results in an error message.

> From my experience I can say that the implementation of the various GSM
> 07.07 AT-Commands in many GSM phones are sometimes buggy and do not exactly
> follow the GSM standard. It could be that you can not read out all 44
> messages because of a faulty AT-command implementation.

That would be a real pity! Actually, at the price of a N6600 I would have
expected it to provide such basic functionallity - stupid me.

Do you know of *any* other way to access the messages?

TIA,
Christoph
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John Henderson
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Re: SMS and AT commands
Posted: 12-29-2003, 11:49 PM
"Peter_L" wrote

> > what if you try to send AT+CPMS="SM","SM","SM" ??? Does the
> > phone accepts this?

"Christoph Hölken" wrote:

> No, unfortunately it also results in an error message.

What about

AT+CPMS="SM"

It would be a good start if the Nokia accepted this. From your
earlier post (agreeing with my Nokia AT manual on the <mem3>
parameter),

AT+CPMS="SM","SM","SM"

is unlikely to be supported because the third argument, <mem3>,
is "SM". It works on my Siemens S55 by the way, and should work
on your S45i.

John


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Christoph Hölken
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Re: SMS and AT commands
Posted: 12-30-2003, 07:32 PM
"John Henderson" schrieb:

> > > [AT+CPMS="SM","SM","SM"]
> > No, unfortunately it also results in an error message.
>
> What about
>
> AT+CPMS="SM"
>
> It would be a good start if the Nokia accepted this.

Results in "+CPMS: 11,15,11,15,11,15".

> From your earlier post (agreeing with my Nokia AT manual on the <mem3>
> parameter),
>
> AT+CPMS="SM","SM","SM"
>
> is unlikely to be supported because the third argument, <mem3>,
> is "SM".

Thanks for pointing that out. Nevertheless it does not increase my
chances of reading the other messages, does it? As you said before, the
only valid pair of parameters for +CPMS appears to be "SM","SM","MT" on
the N6600, lacking the possibility to access ME/MT as read memory.

> It works on my Siemens S55 by the way, and should work on your S45i.

Will try it on my S45 tomorrow, thanks.

Bye,
Christoph
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