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How to resolve a '420 Bad Extension' response

edited Mar 20, 2015 7:51PM in Acme Packet (MOSC) 6 commentsAnswered

 The SBC responds with 420 Bad Extension to any request which contains an unsupported value in a Require header. This issue can be resolved by configuring a sip-feature to allow the particular feature in the Require. The SD will forward this header without any modifications.

 

For example:

  

		SD(session-router)# sip-feature
		SD(sip-feature)#
		sip-feature
		name eventlist
		realm access
		support-mode-inbound Pass
		require-mode-inbound Pass
		proxy-require-mode-inbound Pass
		support-mode-outbound Pass
		require-mode-outbound Pass
		proxy-require-mode-outbound Pass

The "realm" parameter should be configured with the realm name with which you want the feature to be associated.

 

To make this feature global then leave the "realm" under the sip-feature blank.

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