SIP Trunk Registration Failure - non-Standard WWW-Authenticate

Applicability

  • Firmware version: ALL
  • Model: U-Series & Gateways

 

Problem Description

The problem happened on a U100. The SIP trunk status showed the "Wait for Authorization".

 

Analysis

 

The CLI log shows the "nonce" has wrap up to next line which is not standard or common.

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The phenomenon mostly happens when soft switch on other side is Huawei or ZTE.

 

Solution

Enable the Pedantic option: SIP settings> Advanced> Pedantic> yes

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This option would increase the compatibility for non-Standard headers in the SIP packts.

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