EMS Picture(72x28) UPI Header Contents

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Namita Agnihotri
New member
Username: Namitaa

Post Number: 4
Registered: 10-2005
Posted on Monday, October 17, 2005 - 06:22 am:   

I am trying to split 72x28 EMS picture into 3 parts i.e. The first is 32 (width) x 28 (height), the second is 32 (width) x 28 (height), and the last is 8 (width) x 28 (height).

please suggest me how to make concatenation Header ans EMS UPI ?


Namita
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 5156
Registered: 10-2002
Posted on Wednesday, October 19, 2005 - 02:30 pm:   

Hi Namita,

You can find a detailed example of what you are asking about at the following link:

http://support.nowsms.com/discus/messages/1/1758.html

-bn
Namita Agnihotri
New member
Username: Namitaa

Post Number: 5
Registered: 10-2005
Posted on Monday, October 24, 2005 - 04:57 am:   

Hi Bryce,

Thanks for replying me. I have seen the given link but still I have following queries :

i : Byte wise detail study of following headers i.e. (how to make following headers):

a. 0003FF0301 (concatenation header, msg 1 of 3)
b. 130103 (EMS UPI, 3 parts)

ii: why EMS UPI header is to be added only in Ist part ?


Thanks in advance.

Regards,
Namita
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 5184
Registered: 10-2002
Posted on Tuesday, October 25, 2005 - 02:17 pm:   

i.
a. 00 - IEI = 0, concatenated short message
03 - len
FF - concat short message reference number
03 - max number of msgs in concat msg
01 - sequence number of current short msg

b. 13 - IEI = 13, user prompt indicator
01 - len
03 - 3 parts

ii. Because that's the way it is defined in the specification.

Search for a copy of the 3GPP TS 23.040 specification, and that is where all of these fields are defined. (Although note that the latest version of this spec defines a lot more EMS control options that are even less widely implemented.)

-bn

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