Mino – The UC Guy

Microsoft Unified Communications Blog

Posts Tagged ‘Unified Communications’

Lync Voice Deployment User Experience Comparison

Posted by Mino on November 11, 2010

During a very recent engagement with Microsoft Corp. competition team , they shared with me a new customer ready document for Lync voice deployments user experience comparison and I took the permission to share it on my blog.

There are three primary deployment scenarios for Microsoft® Lync™ Server 2010 customers. The three options, which differ in the user capabilities provided and the required infrastructure, are:

· Replace PBX phones with Lync to improve communications and collaboration, and to reduce infrastructure costs. This is the preferred Lync deployment scenario as it allows customers to simplify their communications infrastructure and rely exclusively on Lync Server 2010 for voice, conferencing, instant messaging and presence.

· Enhance PBX phones with the option to use Lync to improve communications and collaboration. This scenario is useful for organizations that are not yet ready to remove their existing PBX systems, but who want to provide their users either with the option to use Lync for phone calls instead of their PBX phone, or with the option to control their PBX phone with the Lync desktop client. The former approach is useful for providing seamless communications for employees working at home and on the road, and as a transitional approach while PBX systems are amortized and decommissioned. The latter approach is useful for providing desktop “Click-to-call” capability with existing PBX phones.

· Add instant messaging, presence, and conferencing to existing phone capabilities.This scenario is useful for customers that want to add Lync capabilities other than enterprise voice.

 

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Notes:

1. Entries marked “*” in the “Enhance, using Lync as phone” column apply when the user uses the Lync soft-phone only, not the PBX phone. Using the soft-phone in this scenario is the Lync default.

2. Entries marked “+” in the “Enhance, using Lync to control PBX phone” column apply when the user uses the Lync soft-phone only, not the PBX phone. Usng the soft-phone in this scenario requires that the user manually select “Lync call” in a drop-down menu each time a call is initiated.

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As shown in the table above, with the Replace option, Lync is the only communications system used and provides the full set of unified communications capabilities to users inside and outside the office. With the Enhance option, users have both Lync and a PBX phone, and choose which phone to use at any given time. When Lync is chosen as the primary phone, as in the “Enhance, using Lync as phone” variant, users have the full set of unified communications capabilities inside and outside the office; when the PBX phone is chosen as the primary phone, as in the “Enhance using Lync to control the PBX phone” variant, users have a rich but reduced set of unified communications capabilities.

REQUIRED INFRASTRUCTURE.

The Replace, Enhance, and Add options enable organizations to standardize on Lync as the only desktop software client for real time communications, but require different supporting infrastructure. In particular:

· The Replace option allows customers to eliminate separate PBX and conferencing systems and the associated user databases and management tools in favor of Lync Server, Active Directory, PowerShell, and Systems Center Operations Manager. This enables significant capital and operational cost savings, and takes advantage of existing skills in these areas.

· The Enhance and Add options require ongoing maintenance of existing PBX systems until those systems are retired. They also require the interconnection of the existing PBX systems with Lync Server, using Direct SIP or a third party gateway qualified via the Unified Communications Open Interoperability Program.This interconnection enables calls to be carried between Lync Server and the PBX systems.

The Enhance, using Lync to control the PBX phone additionally requires the deployment and maintenance of a connection to the PBX. This connection may require a PBX software upgrade and per user PBX software license fees, depending on the PBX manufacturer, and requires associated configuration and management.

 

The table below summarizes the key infrastructure differences for the deployment options.

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As shown in the table above, the Replace option requires the minimum amount of infrastructure. This enables significant cost savings for organizations: for example, Sprint projects annual savings of over $9 million based on its replacement of nearly 500 PBX systems with Microsoft unified communications technology.

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Posted in Lync 2010 Client, Lync Server 2010, Lync Telephony | Tagged: , , , , , , , , , | 1 Comment »

Address Book Download Issue (Vista Only)

Posted by Mino on July 6, 2009

This is a case I have faced right after the MVP award thing; it proves one thing to me.  You will always learn till the last minute of your life whether you are a Ranger or MVP or even one of the product team themselves. 

Ok here is the case; I have a Pilot on Isolated Environment where I have deployed 3 machines (AD+ CA+ Exchange, OCS Front End, OCS Mediation) And the users are on another production environment and they are planning to test the OC locally from their computers joined to the Production domain not the pilot one.

I have everything configured fine, hosts file edited correctly, Certificate Chain imported and Communicator is able to login correctly with no Problem. All of a Sudden all Vista machines are not able to download address book or to retrieve outlook free /busy information. However XP machines are working smoothly with no Problem

OK….then we think logic , what is common between Address Book and Exchange Free/ Busy?  Both are Web Services retrieved through HTTPS, so it has to be IE problem.

After some Googleing I found the solution on the UC No Evil blog as he describes details of troubleshooting steps he did and in the end it appeared to be the IE setting of Check for sever certificate revocation along with Disabling Windows Vista User Access Control

Below Are the Detailed Steps as described on the Blog:

  1. Make sure this symptom is the same on all of your Vista clients.
  2. Flush DNS by using ipconfig /flushdns on the client.
  3. Verify within IE that ‘Check for server certificate revocation* is disabled.  To do this go to IE > Advanced > Security section > Check for sever certificate revocation*.   Deselect the check box.
  4. Now  close Internet Explorer, close Communicator (Completely — sign-out and close application)
  5. Start Communicator| Sign in
  6. If you’re not presented with an error or the warning stating an issue accessing the Address Book, go to the %userprofile%\Local Settings\Application data\Microsoft\Communicator and verify that a GalContacts.db file exists.  If it does exist, GREAT! You’re done.   If not then continue with the rest of the procedure.
  7. Within IE add the Address Book URL that users will download the AB files.  IE > Internet Options > Security > Trusted Sites > Add the URL to trusted sites (ex.  https://ocsfrontend.company.com)
  8. Repeat steps 4-6
  9. If you still cannot download the address book try, move to step 10.
  10. Verify that User Access Control is off and then repeat steps 4-6.

Also some good technical details for the issue are available here on Microsoft Forums

Posted in Certificates, Common Errors, communicator client, Front End Server, Good Articles take from Other Blogs, Miscellaneous, OCS 2007 R2 | Tagged: , , , , , , , , , , , | 8 Comments »

The UC Guy Awarded 2009 Microsoft MVP

Posted by Mino on July 2, 2009

First Of all I am Egyptian and Proud to be
We have the Pharos Beliefs in our blood that simply Nothing is Impossible and Sky is the limit Always.

Yesterday at 1 AM I received the Congratulations e-mail for the Award of 2009 MVP in Unified Communications.

That really felt so awesome , specially that I remembered from 10 years I had the dream to Achieve an MCP Certificate and Hold Microsoft Card in my hands  , then later I wished to have Direct communications with The Microsoft Guys , later I Wished to have my Own Blog and to actually have something useful to write in it.

That MVP Dream came to my mind last year and I thought how far that could be. Today I have Achieved this Dream and I am very happy with it, I owe it to God who has been always taking care of me and giving me all the good things.

Thanks …Like Kaka Says: I Belong To Jesus

Microsoft_MVP_logo

Posted in About Me | Tagged: , , , , , , , , , , , , | 5 Comments »

Unified Communications User Awareness and Training Materials

Posted by Mino on April 25, 2009

Microsoft Unified Communications Training and Adoption 2007/2007 R2 User Awareness and Training Materials

 The Unified Communications 2007/2007 R2 User Awareness and Training Materials Kit provides resources for IT Pros, Administrators, or Corporate Trainers to speed the usage and adoption Unified Communications technologies in the enterprise. Materials in the kit can be customized to the needs of the company and/or organization. The kit provides the following materials: Awareness Materials – Posters, Web Banners, Door Hangers, and Stickers Training Materials Quick Reference Cards, Tips & Tricks Cards, and links to Web-based Training, Getting Started Tours, and Office Online Help and How-to’s.

Posted in 1-What is UC | Tagged: , , , , , , | Leave a Comment »