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    10 <!DOCTYPE concept

    11   PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

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

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

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

    15 <p>The information available depends on the network. Information available

    16 for all networks include call barring and call waiting. Information available

    17 only in the GSM and WCDMA networks includes call forwarding and caller identification. </p>

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

    19 call carrying status indicates whether call barring is active, inactive or

    20 not available. The phones have different call barring settings for different

    21 conditions. For example, a phone might bar outbound calls but accept inbound

    22 calls. </p> </section>

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

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

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

    26 <section id="GUID-42879377-6D68-5D67-9719-F3DBC4BEF6DF"><title>Call forwarding</title> <p>The

    27 call forwarding status indicates whether call forwarding is active, inactive,

    28 not provisioned or not available. The phones can have different call forwarding

    29 settings for different conditions. For instance, a phone might forward calls

    30 when the subscriber is busy, but not when the subscriber does not respond. </p> <p> <b>Note</b>:

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

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

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

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

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

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

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

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

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

    40 </conbody></concept>