This section describes the supplementary service information provided by the telephony API for applications.
The information available depends on the network. Information available for all networks include call barring and call waiting. Information available only in the GSM and WCDMA networks includes call forwarding and caller identification.
The call carrying status indicates whether call barring is active, inactive or not available. The phones have different call barring settings for different conditions. For example, a phone might bar outbound calls but accept inbound calls.
The call waiting status indicates if the call waiting service is active, inactive or not available.
The call forwarding status indicates whether call forwarding is active, inactive, not provisioned or not available. The phones can have different call forwarding settings for different conditions. For instance, a phone might forward calls when the subscriber is busy, but not when the subscriber does not respond.
Note : This information is only available on GSM and WCDMA networks.
Calling Line Identification Presentation
The Calling Line Identification Presentation (CLIP) provides the number of the remote party that calls your phone.
Note : This information is only available on GSM and WCDMA networks.
Calling Line Identification Restriction
The Calling Line Identification Restriction (CLIR) enables the caller to hide the number to be displayed to the remote party.
Note : This information is only available on GSM and WCDMA networks.
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