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The Calling Party Category is a parameter that distinguishes the station used to originate a call. SIP Support for ISUP Calling Party Category inter-works the Calling Party Category parameter in the SS7 ISUP message to the SIP network. The CPC (Calling Party Category) Parameter is included in either the From: Header or the P-Asserted Identity Header. The CPC also carries other important information that describes the originating party. Interworking of CPC values is supported from the SS7 network to the SIP Network only. See information below on how to configure and map the CPC parameter.
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