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Loose Routing vs. Strict Routing

edited Aug 13, 2012 11:13PM in Acme Packet (MOSC) 8 commentsAnswered

Hello All,

 

I'm encountering an interoperability issue with an open source (FreeSwitch) proxy.

 

The 200 OK/SDP response contains the "lr" parameter within the record route:

 

Record-Route: <sip:173.248.154.24;lr;ftag=10.152.0.77+1+a613d+2896e09f;did=6e1.c7d3a147>

 

The Contact looks like this:   Contact: <sip:5189359190@173.248.154.18:5060;transport=udp>

 

The ACK returned from the Acme is not populating the Contact IP provided in 200 OK/SDP, instead it populates the IP listed in the Record Route.

 

The only way i could get the Contact IP populated was to set the lr parameter within the 200 OK/SDP Record-Route to "lr=on"

 

I believe the "lr" parameter indicates loose routing but it seems the Acme 4500 ( SCX 6.1.0 MR-7 Patch 4) does not honor this.

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