Optus X SLEEK User Manual page 96

The sound quality of the calls is poor
• You can adjust the volume during a call by pressing the Volume Up/
Down key.
• Check the network strength.
I am unable to use the features described in the manual
• Check with Optus to make sure that your subscription includes this service.
When I select a number from my contacts, the number can't be dialled
• Make sure that you have correctly recorded the number in your file.
• Make sure that you have selected the country prefix when calling a
foreign country.
I am unable to add a contact in my contacts
• Make sure that your SIM card contacts are not full; delete some
files or save the files in the phone contacts (i.e. your professional or
personal directories).
My callers are unable to leave messages on my voicemail
• Contact Optus to check service availability.
I can't access my voicemail
• Make sure 321 is correctly entered in "Voicemail number".
• Try later if the network is busy.
I am unable to send and receive MMS
• Check your phone memory availability as it might be full.
• Contact Optus to check service availability and check MMS parameters.
• Verify the server centre number or your MMS profile with your operator.
SIM card PIN locked
• Contact your network operator to obtain the PUK code (Personal
Unblocking Key).
I am unable to connect my phone to my computer
• Install Smart Suite.
• Check that your USB driver is installed properly.
• Open the Notification panel to check if the Smart Suite Agent has
been activated.
• Check that your computer meets the requirements for Smart
Suite Installation.
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