Microsoft Releases Lync 2013 Headers for SIP Trunk Provider Billing
If you’re a SIP trunk provider, and want to have more granular billing capabilities, then this 12 page documentation may be of use to you. Microsoft has released a document showing the headers implemented in Lync Server 2013, and how they can be used to more effectively bill customers. RFC references for History-Info, Referred-By, and P-Asseted-Identity as well as configuration details and various scenarios are mentioned.
Released on 05-03-2013, the documentation is available at http://www.microsoft.com/en-us/download/details.aspx?id=38820