147
Problem Possible causes Possible solution
Echo or noise
Poor network link quality
on the part of your service
provider.
End the call and dial
again. You may be
switched to a better-
quality network link or
phone line.
Poor local telephone line
quality.
End the call and dial
again. You may be
switched to a better-
quality network link or
phone line.
Unable to select
certain features
Your service provider does
not support these features,
or you have not applied for
services that provide these
features.
Contact your service
provider.
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