I have tried the latest kannel from svn with no luck, still facing the same
issue.
My server is Xen-based HVM, and i have some doubts that kannel is not
acting properly in a virtualized environment. it seems that PDUs are
malformed or can't handle the flow of them properly.
I have already many dedicated servers with kannel installed for many years
and i didn't face such behavior before with them, the issue started to
appear with my HVM servers only.
Regards,
Amir
On Thu, Nov 27, 2014 at 5:54 PM, Amir Mahmoud <amir.mahm...@egyptlinx.com>
wrote:
> Hi Alvaro,
>
> I have tested this issue with many subscribers phones and all of them are
> having the same behavior, the SMS is received but kannel state it as
> DISCARD meanwhile the tcp dump that i have extracted from my firewall shows
> that the SMSC had actually submitted the corresponding "submit_sm_resp" PDU
> but it seems that kannel ignored it or couldn't match it properly.
>
> Regards,
> Amir
>
> On Thu, Nov 27, 2014 at 5:44 PM, Alvaro Cornejo <cornejo.alv...@gmail.com>
> wrote:
>
>> Hi
>>
>> It does happen with some phones when your phone memory/sim is full. In
>> those phones, it fails to report smsc that it received the "last" sms that
>> fits its memory; therefore smsc never receives the delivered PDU, and thus
>> kannel retries until it expires. This usually happens when storing sms on
>> SIM.
>>
>> Try to delete some sms from phone memory and sim.
>>
>> Regards
>>
>> Alvaro
>>
>>
>>
>>
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>>
>> On Wed, Nov 26, 2014 at 8:38 PM, Tapan Kumar Thapa <
>> tapan.thapa2...@gmail.com> wrote:
>>
>>> Have you tried latest kannel from svn?
>>>
>>> Sent from my Windows Phone
>>> ------------------------------
>>> From: Amir Mahmoud <amir.mahm...@egyptlinx.com>
>>> Sent: 27-11-2014 01:21
>>> To: users <users@kannel.org>
>>> Subject: Same Sequence Number for many PDUs
>>>
>>> Hello Guys,
>>>
>>> I'm facing abnormal behavior with my kannel (1.4.4) installed on CentOS
>>> 7,
>>>
>>> I have found that when i submit SMS to my number and after receiving it
>>> on my handset that kannel still keeps the sms on the store trying to
>>> re-submit it again and again to the SMSC and with each attempt i receive it
>>> again on my handset and finally after finishing the retrials kannel log it
>>> with status DISCARD !!!!
>>>
>>> I have set the bearerbox in debug mode and found that kannel already
>>> sent "submit_sm" successfully PDU but it didn't receive "submit_sm_resp"
>>> and i think this is the reason behind keeping it in the store and discard
>>> it.
>>>
>>> So, i have taken tcp dump and found that both "submit_sm" PDU and
>>> "submit_sm_resp" already sent but i can't understand why kannel didn't
>>> handle it Also i have found unusual thing while checking the dump, i found
>>> that many PDUs are having the "sequence number" ("Enquire_Link" &
>>> "Submit_SM")
>>>
>>> Is that normal and why kannel is doing so ?
>>>
>>> Regards,
>>> Amir
>>>
>>
>>
>
