Mobile message type specification - Operator logo SMS, XML
(SMS message type, SMS message format)
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:
The operator logo version number
Mobile Country Code
Mobile Network Code
OTA bitamap data
(The bit stream containing the data. Note: Ozeki NG - SMS Gateway will
remove any spaces from the hexadecimal character string.)
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
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.
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
insert into ozekimessageout (receiver,msgtype,msg,status)
Operator logo II.