Tom Arbuthnot is a consultant at Modality Systems providing planning, design and deployment of all aspects of Microsoft Unified Communications and integration with existing enterprise telephony environments.
Before joining Modality, Tom worked for a leading Cisco Unified Communications Partner where he gained a good understanding of the Cisco UC proposition and a unique perspective on the relative benefits of the Microsoft offering.
Tom is a Microsoft MVP for Lync and is actively involved in the global Unified Communications community via Twitter, Microsoft Technet Forums, Lync’d Up blog and as a founding member of Microsoft UC User Group London. He holds a BSc degree in Management from Loughborough University as well as various technical certifications including Cisco CCNA Voice and Lync 2010 MCIPT.

Hi, any clue on how i can fix lync ‘cannot synchronize address book’ error. I have tried every suggestions on the internet. We have a merged topology with OCS R2. The prompt goes only when you cancel. This is happening to all internal users. We have a different SAN certificate for lync and OCS.
Hi, There could be a lot of reasons for this.
Can you post on the technet forums http://social.technet.microsoft.com/Forums/en-GB/category/ocs and post the link here, it’s easier to troubleshoot there, also others may be able to help
thanks
Tom
[...] There are several ways to find cmdlets in Lync. If you like the graphical representation like a mind map there is some good ones created by MVP Tom Arbuthnot [...]
Win 2008 R2.
MSOffice10.
Lync.
How can you delete the conversations? I right-click and click the delete option which is NOT grayed out, but the conversation(s) remain.
Thanks
Do you mean from Outlook/Exchange/OWA or from the client? In either case you should be able to right click and delete. It may take a minute to refresh in the client.
Tom
I already deleted the outlook saved messages and turned off the option to save them. So new messages are not being saved client side.
However, the older messages still appear. I’ve tried deleting them, restarting lync and rebooting, but they persist in the client. When I click delete there is a quick refresh, but the message continues to display. I’ve looked at all the options available and I don’t see anything that would help.
Hi Tom,
Im a Exchange 2010 admin i want to learn Lync 2010
My question will i need to learn something like CCNA voice
Thank you
CCNA Voice is very Cisco focused, it is great for getting up to speed on voice technology, but it’s not where I would start for Lync. There are some Lync exams from Microsoft to look at, but the first thing I would do is spin up Lync Standard Edition in a lab and have a play with setting it up, once you have done that look to the voice elements in more detail
Tom
Hi Tom
I saw your blog, I great your knowledge in Lync,Tom I need your help , if you could give me an example, situations in which code is generated 504 and 603, in addition to the information you have on your blog.
Regards
Nery
Hi Nery,
That’s not much info to go on. Can you post a thread on technet and I’ll take a look
thanks
We want to have our employees authenticate with LYNC client as follows:
from the campus, using Kerberos.
from outside the corporation, using client certificate+PIN (with Edge in the DMZ).
Although the client certificate+PIN is mainly used by VoIP telephones, I’ve read that it is possible to have a user authenticate from LYNC client on a regular PC, using client certificate+PIN.
Is if possible?
If it’s possible, can you reference me to a relevant doc?
Thanks,
Gilad
Lync client can use a cert for sign in, but only after using AD creds. and the cert needs renewing every x days (policy set). You can’t use a pin on the pc client, that’s for phone only. Thanks