>I've also got this informaton from the SMSC operators, about using coding =
>2 and  why they send NACK
>I don't know what they mean, but I hope someone do, and can fix this problem
>in the kannel
>or can tell me if there is something I can do in the configuration.
>
>They Wrote :
>
>Hi Avner,
>
>Probable the Xser (Extra Services) field will cause the NACK, the value's in
>that field 020104 refer to DSC information,
>, 01 is the lenght in octets of the next octet's 04. 04 in bin. is 0000100
>the meaning is described in ETSI specs GSM 03.38
>the bit's 01 means an alphabet is used as 8-bit data.


This means 8 bit data which is absolutely correct. You might ask them 
why they have a problem with 8 bit data. the two SMSC's we use which 
are EMI/UCP too dont have that kind of problem so they might need a 
software upgrade to fix this on their side.

-- 

Andreas Fink
Fink-Consulting

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