Optus X SLEEK User Manual page 41

Sending a text message
Enter the name or mobile phone number of the recipient on the
recipients bar or touch to add recipients, then touch the content
bar to enter the text of the message. When finished, touch to send
the text message.
An SMS message of more than 160 characters will be charged as
several SMS. A counter above the sending icon will remind you of
the number of remaining characters can be entered in one message.
Specific letters (like accents, for example) will also increase the size of
the SMS, this may cause multiple SMS to be sent to your recipient.
Sending a multimedia message
MMS enables you to send video clips, images, photos, contacts, slides
and sounds to other compatible mobiles and email addresses.
An SMS will be converted to MMS automatically when media files
(image, video, audio, slides, etc.) are attached or subject or email
addresses are added.
To send a multimedia message, enter the recipient's phone number or name
in the recipients bar, touch content bar to enter the text of the message.
to open the options menu, then touch Add subject to insert
Touch
a subject.
Touch to attach a picture, video, audio, etc.
When finished, touch to send the multimedia message.
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