1. Header Manipulation Rules Resource Guide
  2. Header Manipulation Rules

1 Header Manipulation Rules

Variances among SIP networks, like incompatible vendor deployments or disparate SIP services, can degrade SIP services or disrupt SIP operations. To resolve these variances, Oracle deploys Header Manipulation Rules (HMR), giving network administrators the ability to control SIP traffic by manipulating SIP messages.

HMRs permit the network administrator to:

  • Insert, delete, or modify SIP headers or parameters
  • Copy or move header or parameter values
  • Rename parameter names
  • Modify MIME bodies including SDP, XML and ISUP
  • Change SIP-I/SIP-T ISUP messages, parameters, and fields
  • Change message information when, for example, normalization is required
  • Categorize and label specific message flows for special processing
  • Capture information from a message and insert it into another message

The SBC can perform these actions based on the following:

  • The type of SIP message (Request or Response)
  • The type of Request (INVITE, REGISTER, etc.)
  • The success or failure of a regular expression to match a header or parameter