0-1 (0=overwrite only display-Name in From and PAI headers, 1=overwrite both display-name and user-part (SIP URI) or the whole header (Tel URi) for From and PAI headers.)
When set to 0, Generic Number received in CAPv2 CONNECT should overwrite in the outgoing SIP INVITE the display-name of the From header and P-Asserted-Identity when display-names are available or add display-name with Generic Number in From-header and P-Asserted-Identity when display-name is not available.
When set to 1, Generic Number received in CAPv2 CONNECT should overwrite in the outgoing SIP INVITE the user-part and update display-name for From and P-Asserted-Identity headers when SIP URI. In case of Tel URI overwrite the values in the From and P-Asserted-Identity headers.