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Scenario

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 performs protocol repair.

Background Information

Refer to the background information in Basic Service Availability - DNS. 

Description

Protocol Repair

  1. The public internet/ISP receives SIP messages with slight variations in SIP headers, parameter formats etc.
  2. The
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    repairs the protocol information, discards irrelevant and/or offending information or inserts missing information based on the policy installed by the operator. A common "normalized" SIP message passed to the core network simplifies implementation and supports better interoperability.

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