We are just finalizing test of a hosted OCS setup (HMC deployment guide), and everything works, just not anything related to SIP tunnelling between external clients. Our configuration is as follows:
- 1 backend (CD,QoE, SQL)
- 1 application (OCS roles)
- 1 frontend (Edge, two nics)
Published with a Cisco PIX 515 firewall and Squirt for reverse proxy. We can chat, expand groups, see ABS, do live meeting (w/wo video, voice), share desktop, everything works - just not two features: pc-to-pc call and send file. Pc-to-pc call only works if they are on the same side of an external line (SIP not traversing firewal), but if one of the MOC users are behind another ADSL (router) - we cannot get voice to connect. I guess is has something to do with media relay or SIP/TURN/STUN. I even tried putting the external MOCs on a WAN connection with not firewall, but does not work.
Where do I start looking. I used a Network Monitor but my MOC clients only do TURN and TCP protocols - no SIP/STUN.
Any clues?
