SIP Header Manipulation - Optional SBC Feature

System-recognized headers

This refers to headers that can be recognized by the SBC. All system-recognized headers, including common headers in NGNs, have been defined by the International Engineering Task Force (IETF) and 3rd Generation Partnership Project (3GPP). You can view these headers in the system view by using the display sbc sip  header system-recognized command.

For system-recognized headers, the HMR supports all or part of the following processing: the insertion, deletion, replacement, transparent transmission and conversion of SIP headers, display-name parameter in the SIP header, and SIP header URIs (including URI, URI parameters, URI type, user name, domain name, number, prefix and postfix in URI).

System-unrecognized headers

This refers to headers that cannot be recognized by the SBC. System-unrecognized headers are usually defined by vendors.

For system-unrecognized headers, the HMR supports the insertion, deletion, replacement, and transparent transmission of headers.