Mobile message type specification - Operator logo SMS, XML
(SMS message type, SMS message format)

Introduction

Operator logos are graphical images that are displayed on a phone when the phone signs into a GSM network. An operator logo is identified by a country code and a mobile network code. The GSM handsets supporting this technology can store more than one image at a time, and when the handset roams between networks, it can display the appropriate operator logo.

An operator logo is an OTA bitmap. The OTA bitmap is a black and white picture with a gray scale level of 1 to 255. The OTA bitmap has a header and a body. The header has a predefined width and a height field specifying how the stream of bits in the body should be broken into lines.

When designing operator logos, the designer has to keep in mind that different handsets support operator logos of different dimensions. The most common bitmap size for operator logos is 72x14 pixels.

Support for Operator Logos in Ozeki NG - SMS Gateway

As an operator logo has several parameters in addition to the bitmap stream, Ozeki uses an XML format to represent it. The following example illustrates the structure of this XML file:

 <operatorlogo>
<version>0</version>
<mcc>123</mcc>
<mnc>45</mnc>
<otabitmap>
00480E00
FFFFFFFFFFFFFFFF FF00000000000000
0000FFFFFFFFFFFF FFFFFF0000000000
0000000010F00000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000000000000 000000000001
</otabitmap>
</operatorlogo>

Sending an operator logo in SMS

To send an operator logo message using Ozeki NG - SMS Gateway, you need to specify a message type which tells the software that the following message is an operator logo. To send the above example, you would use the following message type:
SMS:OPLOGOXML

In this case, the message type is made up from two sections. The first section tells the message server that this is an SMS message. This way only the service provider connections supporting this type of SMS will be considered to deliver the message. The second section is used by the service provider to use the operator logo encoder. This encoder will parse the XML file and create the protocol data unit (PDU) that will be sent as an SMS message. After the message type has been set, the message content should be created in the proper XML format.

Example

If you use the Database user to send and receive SMS messages with Ozeki NG - SMS Gateway, you can use the following SQL statement to send an Operator 

Logo message:insert into ozekimessageout (receiver,msgtype,msg,status) values ('+36205222245',
'SMS:OPLOGO','0< mcc>12345
< otabitmap>00480E00FFFFFFFFFFFFFFFFFF000000000000000000FFFFFFFFFFFFFFFFFF
00000000000000000010F000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000001'
,'send');

More information