You are wrong.

Messages are always sent using AT+CMGS.

Sim buffering is just for incoming messages.

Afaik Kannel doesn’t issue AT+CMGW.

 

== Rene

 

From: [email protected] [mailto:[email protected]] On Behalf
Of Alejandro Mejia Evertsz
Sent: Wednesday, 13 July, 2011 18:47
To: [email protected]
Subject: Re: HUAWEI E 1550 Modem getting disconnected

 

Does sim buffering cause messages to be stored on sim before being sent?
If this is the case, you should disable it, so messages are sent using
AT+CMGS straight, instead of using AT+CMGW and then send it.

Just using my logic, as I'm not an expert.
Someone else correct me if I'm wrong hehehe.

On 13/07/2011 08:37 a.m., Jalal Uddin wrote: 

Hello Thank you for reply.

I am trying lot of things to get out of this issue. interesting thing is i
don't see this issue reported that much, just feels like i am not only one. 

my current throughput is 5, and tomorrow i am going to set it even lower,
something like 0.1 to see if my USB stick modem is too weak for sending 1000
or not.

i am using memory storage =  SM i tried ME as well, but both causes the
issue. DLR is stored in MySql. i am not sure what you mean by using same
memorey for MT and MO, i found that in Kannel, only drl storage and
message-storage is the two options. is there any other storage choices?

Sim buffering is set to true, but i tried with false as well i think, but i
am not sure about this. What do you think is the right option for such USB
stick GSM modem?

Modem connectivity is OK, because we have passed that stage already, our SMS
sending, delivery report receving is working cool just when we try to send
above 500 SMS at a single shot then it fails. can you give me some idea how
can i avoid too many stored message problem. because i am not sure whether i
have any option to avoid such thing.

Thank you

On Wed, Jul 13, 2011 at 7:42 PM, Alvaro Cornejo <[email protected]>
wrote:

Hi hard to say what the problem is but

_) Verify that your modem is not storing messages in its internal buffer
_) Your modem migh freeze because of too many stored messages
_) If you decrease the throughput thoughput=10, still having the same
problem?
_) Check with minicom or other terminal sw of you can connect to the
modem and verify memory status.
_) Some modems use the same memory allocations for MT & MO... might
you have MO stored in your modem?
_) Set logs to debug to see if you get more info

Hope helps




|---------------------------------------------------------------------------
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en el Perú, México y en mas de 180 paises. Use aplicaciones 2 vias via
SMS y GPRS online
              Visitenos en www.perusms.NET www.smsglobal.com.mx y
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On Wed, Jul 13, 2011 at 7:39 AM, Jalal Uddin <[email protected]> wrote:
> Hello everyone,
>
> I need some urgent help. I am using HUAWEI E 1550 Modem for SMS sending.
> When i am sending (200-250) SMS then it is working just fine, but when i
am
> sending over 500 SMS, an error comes in,
>
> CMS ERROR: Unknown error. -> maybe Sim storage is full? I'll have a look
at
> it. (500)
>
> after that kannel tries to again initialize the modem and fails to connect
> it.
>
> some more errors like - "Coundn't connect" or "Wrong or no answer to ATZ"
> comes in.
>
>
> from the actions it feels like kannel bearerbox tries to rebind the modem
> again, but it can't. Then i shutdown the
> bearerbox and try to restart it, still it can't open the the modem in the
> same USB port now. i disconnected the modem and unplugged
>
> it and plugged it in the same port, and still the bearerbox can't connect
to
> the device. I see that AT commands are not going through anymore, just
like
> when i try to bind the modem in wrong
> USB port.
>
> may be plugging the modem in another USB port works, but what i need to
know
> is what can be the possible reason for kannel lossing connection
>
> with the modems when more than 500 SMS is sent with throughput = 5 (in
case
> that is important)
>
> btw , i am using either Ubuntu server 10 or Ubuntu 10.10.
>
> Does anyone faced such problem, can anyone suggest me a solution to this
> problem? Please help me on this, because i am wasting lot of money trying
to
> test 1000 SMS deliver
>
> and i am suffering from this problem for more than 3 months now. Please
> help.
>
> Thank you
>
>
>
>

 

 

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