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<concept id="GUID-520F620F-03CE-5C4E-9783-745D2740F648" xml:lang="en"><title>Supplementary

Services Provided</title><shortdesc>This section describes the supplementary service information provided

by the telephony API for applications. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>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. </p>

<section id="GUID-39EB5CE9-3024-54B1-9F7C-7D19179262BF"><title>Call barring</title> <p>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. </p> </section>

<section id="GUID-D8E03693-C337-5F6D-8598-1836A7A7EB85"><title>Call waiting</title> <p>The

call waiting status indicates if the call waiting service is active, inactive

or not available. </p> </section>

<section id="GUID-42879377-6D68-5D67-9719-F3DBC4BEF6DF"><title>Call forwarding</title> <p>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. </p> <p> <b>Note</b>:

This information is only available on GSM and WCDMA networks. </p> </section>

<section id="GUID-B9D15995-C23A-5CAD-98DC-8A916A54C554"><title>Caller Line

identification</title> <p><b>Calling Line Identification Presentation </b> </p> <p>The Calling Line

Identification Presentation (CLIP) provides the number of the remote party

that calls your phone. </p> <p> <b>Note</b>: This information is only available

on GSM and WCDMA networks. </p> <p><b>Calling Line Identification Restriction </b> </p> <p>The Calling Line

Identification Restriction (CLIR) enables the caller to hide the number to

be displayed to the remote party. </p> <p> <b>Note</b>: This information is

only available on GSM and WCDMA networks. </p> </section>