VCS B2BUA & Microsoft Lync Integration

[fantasy24]

Guys,

We have a deployment on the integration of VCS to Microsoft Lync.

Details as below:

VCS-Control: v7.2.1

VCS-Control (Lync-Gateway): v7.2.1

VCS-Expressway: v7.2.1

Microsoft Lync 2010

All licenses needed for this integration is available except for the FINDME option key.

We have followed the configuration guide on this but in vain.

Both sides trust hosts is done properly.

Current temporary deployment we are using TCP to Microsoft Lync 2010 from VCS-Control (Lync-Gateway).

Below is the status of the B2BUA:

VCS

<sip:localservice:localdomain:5061;transport=tls;lr>

Standard

Alive

<sip:xxx.xxx.xxx.xxx:5060;transport=tcp;lr;ds>

Microsoft

No response

Far end is not running or not listening on the configured port.

Need your expertise on this. Please let us know if you see something wrong.

[awinter2]

Hi,

my initial thought/question would be to ask why you're not using SIP TLS between VCS/B2BUA and Lync, since that is the configuration the deployment guide provides instructions for?

Lync 2010 by default does not listen for SIP TCP on port 5060, which would explain the 'Far end is not running or not listening on the configured port' diagnostics message.

SIP TLS is preferred over SIP TCP for the trunk between B2BUA and Lync since it is secure and allows for encrypted media.

If you did try setting up SIP TLS to begin with, could you elaborate on the problems you ran into with this configuration?

- Andreas

[fantasy24]

Hi Andreas,

Thanks for the reply.
We have successfully integrate w Lync using TLS.

Thanks again.

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