Use this parameter to specify how to treat call forwarding history information.

To View and Edit History Information

On the SBC main screen, go to Configuration > System Provisioning > Category: Trunk Provisioning > IP Signaling Profile > Egress IP Attributes > SIP Headers And Parameters > Call Forwarding > History Information. The History Information window is displayed.

DEFAULT_SIP

On the History Information window, choose the IP Signaling Profile as DEFAULT_SIP to view the History Information for the SIP Trunk Group.

Trunk Provisioning - Egress IP Attributes SIP History Information


Egress IP Attributes Call Forwarding

Parameter

Description

Include History information

Enable this flag to include History-Info in INVITE egress message.

  • Disable (default)
  • Enable
Cause Parameters In RFC4458

Enable this flag to include the History-Info cause value in egress message as per RFC 4458 recommendation. When the flag is enabled, the output is similar to the following example:
History-Info: <sip:1234567890@P1.interwork.com?Privacy=none>;index=1, <sip: last_diverting_target;cause=408>;index=1.1

  • Disable (default)
  • Enable
Reason With Cause Value As Per RFC4244

Enable this flag to include History-Info cause value with Reason Header as per RFC 4244 recommendation. When the flag is enabled, the output is similar to the following example:
History-Info: <sip:1234567890@P1.interwork.com?Privacy=none>;index=1, <sip: last_diverting_target?Reason=SIP%3Bcause%3D408>;index=1.1

  • Disable (default)
  • Enable
Support RFC7044

Enable this flag to set the History-Info header's behavior in accordance with RFC-7044.

  • Disable (default)
  • Enable
Apply History Info Privacy

Enable this flag to anonymize the History-Info header.

  • Disable (default)
  • Enable


Make the required changes and click Save.