Hi,

I have been learning to use Kannel for MT and MO messages and have successfully 
managed to get it working.
My initial configuration was using dlr-storage = internal and have now switched 
to using MySQL dlr. 

Though the configuration works fine, I have some basic questions in this 
regard. 

1) What is the basic difference in using dlr-storage = internal and dlr-storage 
= mysql?
I understand that in the first case, dlrs are stored in the memory and in the 
second case, mysql db is used.. 
However, since this is used internally by Kannel and the entries are finally 
deleted from the table, can anyone help me understand how using mysql for dlr 
storage will be helpful. 
In a typical app scenario, what benefit will using mysql dlr provide over using 
internal dlr storage? 

2) Though my understanding was initially incorrect, I now understand that in 
order to store the dlrs, I need to have my own table and the dlr-url should 
handle the requirement of adding / updating the dlr information in my custom 
table as per my app requirement. 
I just recently came across sqlbox and was wondering if using sqlbox 
would simplify managing sent messages and delivery reports.

a) I understand that it can be used for MT messages by adding the messages to 
be sent to the send_sms table and once sent will be moved to the sent_sms 
table. 
Will these messages continue to remain in the sent_sms table? 

b) Will sqlbox also help in handling MO messages and delivery reports? 
Will the delivery reports also get stored in any table or would we need to 
handle this in code as when not using sqlbox?

c) If sqlbox handles delivery reports as well, what is the significance of the 
dlr-url when using sqlbox? 
   
It would be really great if someone could answer these queries.

Thanks,
Sindu



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