Hi, I have a scenario where multiple companies with multiple sip and smtp domains want to also use one common domain. Ie. Users from domain1.com have their own Exchange and Lync topology, this is also true for users from domain domain2.com Is there a way to use SER on commondomain.com to forward Lync traffic, presence, chat, rtp to these servers/users B.r, Øystein Rudi Teknisk leder (CTO) / Seljestadveien 78 A, 9407 Harstad sentralbord: +47 77 00 27 50 / fax: +47 77 00 27 51 / web: www.serit.no epost: oystein.rudi(a)itpartner.no / direkte: +47 77 00 27 81 / mobil: +47 93 00 89 99 [Serit_ITPartner_Harstad]