[OpenSIPS-Users] B2BUA mangling To header

Ryan Revels ryan at revelous.net
Thu Sep 8 15:40:24 CEST 2011

I'm running Revision 8257 from SVN branch of 1.6.
I've run into an issue with the B2BUA functionality. It mangles the To
header on subsequent requests:

On the initial INVITE from the B2BUA, the To header is:
To: sip:18566625637;rn=18563809999;npdi=yes at

On the responses, the to-tag has been added by the UAS:
To: sip:18566625637;rn=18563809999;npdi=yes at;tag=gK0cdb2397

The issues then occur on the ACK from the B2BUA(to 200 OK to initial
*To: <sip:18566625637>;tag=gK0cdb2397
Any help would be much appreciated.

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