Hello,
I have recently started deploying a Lync 2013 topology alongside an existing Lync 2010 topology. The Lync 2010 Edge Server was removed from the topology and a new Lync 2013 Edge server was added to the topology.
The Topology has
1 x Lync 2010 Enterprise Server
1 x Lync 2010 Monitoring and Archiving Server
2 x Lync 2013 Standard Edition Servers (Pool Pair)
1 x Lync 2013 Edge Server
1 x Reverse Proxy
1 x PSTN Gateway
2 x SBA/Gateways (Branch offices)
All Edge services are working fine but I have a weird problem.
When making PSTN phone calls Lync Phone Edition beeps 8 times before I hear the ringing. Dialling from Lync Clients also beeps. If I restart the Lync 2013 Edge server, then the beeps go away for roughly 1 day, then return. At one point it was ok for 4 days but then the beeps/delay returned.
I have checked the performance of the server, it is using hardly any CPU or Memory. The hypervisor the Edge server is homed on also has no obvious performance problems.
The Topology in Lync has been verified and I have re-ran the Lync Deployment Wizard, installed certificates on all Lync servers just to make sure everything is okay.
The TCP binding order of the NICs on the Edge server has been configured so that the Internal NIC is top of the list. I have verified that the network settings are correct, the External NIC has the edge IP addresses, default gateway and internal DNS servers. The Internal NIC has the internal IP address, mask, no DNS or gateway. There is also a static route on the server back to the internal networks (10.0.0.0 255.0.0.0). Trace routes and pings verify everything is routing the right way. I have also checked DNS and verified the entry for the Edge server is correct.
The Windows Event Logs of the Edge server show no errors or warnings when the problem occurs.
Any ideas? It is leading me to believe this is more of a bug than a configuration problem as everything works fine then randomly just stops. The only workaround I have is to restart the Edge server.
Just to add - This impacts users who are homed on the Lync 2010 and Lync 2013 pools. Only when the Edge server is restarted, everything returns to normal.
OS of all servers is Windows Server 2008 R2
- Edited by UC Chris Tuesday, May 07, 2013 2:46 PM