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The Connected Number parameter is an ISUP parameter found in either the ANM or CON messages. It is used to implement the Connected Line Identification Presentation (COLP) supplementary service. The Connected Number parameter is sent in the backward direction to identify the number that is connected to a call. Because of potential changes in a call such as call redirection and call transfers, the connected number parameter may be different than the called party number. This feature interworks the connected number parameter between the ISUP and SIP protocols and is only supported for ITU ISUP. Refer to the Call Flows below.
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Below are instructions on how to configure the IMG 2020 to interwork the Connected Number parameter between SIP and ISUP. Before configuring, the IMG 2020 must have an initial configuration created on it. Refer to the Basic Configurations procedure and verify the basic functionality has been configured. Also, since the feature uses interworking between the SIP and ISUP protocol, verify that ISUP signaling and ISUP channel groups have been configured. Refer to the Configure SS7 topic for information on configuring SS7 ISUP.
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A SIP Profile is needed to enable this feature and also to use the new X-Dialogic Connected Info private SIP header. Refer to SIP Profile - SGP topic for creating a SIP profile.
Right click on the SIP Profile object created and select New SIP Headers. In the SIP Headers object that appears, enable the X-Dialogic Connected Info field. See screen capture below. Refer to SIP Profile - Headers topic for more information.
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