Category Archives: LCS 2005 SP1
I do not have any details on the exact cause of the issue at this point, but I recently did an OCS 2007 R2 deployment on Server 2008 R2. We followed the general instructions located on TechNet to install the OCS services on 2008 R2, but ran into an issue when performing user moves from LCS to OCS.
Not a lot of information in the errors, but pointed to a connectivity issue between the LCS server and the new OCS server.
The fix for this issue is to install the admin tools on a 2003 Server, once the admin tools were installed on a 2003 sever in the environment, the moves were successful. I am working on finding the exact cause, but I am betting it is related to the bullet item for admin tool compatibility issues listed on the 2008 R2 support page. Will update when I have more information.
Often I run into customers that want Remote Call Control with their current phone system as an integration architecture with OCS 2007 R2. Personally I see the benefit to remote call control in LCS, and OCS 2007 R1, but not with the R2 release, and especially with Wave 14 so close. Many times I have had to explain the different scenarios, and why I think a different architecture is a better way to approach this. Today I had to develop this information for a Cisco Call Manager implementation, and wanted to have a reference point, as well as share my thoughts on the subject.
To give a brief background, the customer wanted RCC with Cisco, they currently have an OCS infrastructure in place, and wanted to add the RCC functionality to that environment. In order to do this, they would need to upgrade to Call Manager 7, which is the very first reason to not go any further with the RCC architecture in my opinion. If you are investing in the Microsoft Unified Communications technology stack, there is no reason to dump more money into another UC product along side it.
As a summary, here is a description of what RCC is… Credit goes to this blog post http://blogs.technet.com/jkunert/archive/2008/07/30/voice-scenarios-with-ocs-2007.aspx
This is a description from the R1 release of OCS 2007 but still holds true today.
Remote Call Control (RCC)
Also this voice scenario was already available in OCS 2007 predecessor Live Communications Server 2005 SP1. The users OC client does not act as a soft phone, does not need an audio or audio/video device connected to the PC and the user is not able to make or receive phone calls by using her/his PC. This is not a VoIP scenario!
In this scenario, an OCS 2007 user has a PBX or IP PBX phone with an extension (e.g. 1212) standing on her/his desk. In addition to that, Office Communicator (OC) 2007 is installed on the user’s PC.
In the office
On an incoming call the user’s PBX phone rings as well as that she/he receives an incoming call notification (pop-up window) on the bottom right of her/his PC screen, showing the Calling Party Number (Caller ID, phone number of the person who called) and also the caller’s name (if OC could resolve the phone number to a name by matching the phone number against Active Directory or Outlook contacts). The user is able to accept the call by picking up the receiver of the PBX/IP PBX phone or by clicking on the pop-up window for the incoming call on her/his PC. In both cases, media (voice stream) will stay on the PBX/IP PBX and there will be no VoIP connection to OC! The user does not need an audio device for telephony connected to her/his PC.
At home/on the internet
If the user receives an incoming call to her/his office number while being connected to the company’s IT environment over the internet (e.g. at home), the users PBX/IP PBX phone will ring in the office (what she/he most likely will not be able to hear J) as well as that she/he can see the pop-up window generated by OC on her/his PC. Accepting the call by clicking on the pop-up window will result in this scenario that the phone in the office will activate the speaker phone, but the user is not able to use her/his PC to talk to the caller. No VoIP connection through the internet is established! (However, the user can redirect an incoming call to her/his mobile phone and can pick up the call this way while working remotely.)
How it works in a nutshell
A CSTA Gateway (GW) needs to be installed between OCS 2007 and the PBX/IP PBX. Some PBX/IP PBX systems come with a CSTA interface natively so there is no need for an additional GW. Between OCS and the PBX/IP PBX call control commands will be sent, packed into a SIP INFO message that uses a long-lasting SIP dialog between OCS and the CSTA GW. The CSTA GW converts these call control messages into a format that the PBX/IP PBX understands. A CSTA GW is not a media GW so voice cannot be converted by a CSTA GW from a TDM (Time Division Multiplexing) or PSTN protocol to VoIP! OC can only control the functions of the PBX/IP PBX phone.
With a Cisco integration, we would actually be able to do direct sip as long as the following software requirements are met on the Cisco side:
- Cisco Unified Communications Manager Release 7.0(2)
- Cisco Unified Presence Release 7.0(3) with E.164 patch for RCC
One of the key features of the Microsoft OCS Platform is the ability to have not only integrated IM and Voice calling, but also conferencing, all within the same application, and all available through a single click. Any communication can be escalated to a conference by inviting PSTN or VOIP participants at any time. When you introduce the remote call control scenario this is no longer available. A Key thing to point out is that a user in this scenario cannot make or receive calls using communicator, they still must use the Cisco phone in all scenarios, which virtually eliminates the remote worker benefits of OCS. Below is the list of other limitations taken from the Cisco Documentation on this configuration:
Features Not Supported
· Microsoft OC logon from two locations
· Call Forwarding
· Location Based
· Phone Settings
· Conferencing through remote call control
· Conferencing: OCS 2007 R2 does not support call conferencing through remote call control. Conferencing is available in IP Phone
only or OC only call scenarios.
· Call forward setting on IP phone: Call forward setting made on the Cisco IP phone (desktop), using its soft key button or the Cisco
UCM phone configuration page, is not reflected by the Microsoft OC GUI. As of Microsoft OCS 2007 release, this feature is not
supported. The Microsoft OC can override any call forward setting manually configured on the IP Phone and vice versa.
· Call Forward Setting from OC: Call forward setting from the OC through remote call control (RCC) fails on the IP Phone when the IP
Phone is initially configured with an E.164 DN. If the IP Phone is reconfigured to a non-E.164 DN then back to the E.164 DN, the
call forward setting from OC through RCC will work. This is a known issue on Cisco UCM 7.0(2) and has been documented in
CDETS CSCsy62620 to be fixed in a future release.
· Do Not Disturb (DND): DND is an unsupported feature with respect to CUP integration. Thus, any OC client with DND feature
enabled, will still have any received calls routed to its controlled IP Phone.
· Multiple Point of Presence (MPOP): As of the CUP release 6.0(1), the MPOP feature where a Microsoft OC user is logged in from
more than one location is not supported by CUP. Support for this feature affects other interoperability features between the Cisco
CUP and the Microsoft OCS. The affected features include basic placement and teardown of calls and locations-based call forwarding.
These features are inherent to MPOP and without support for this feature, the user experiences loss of device and call control when
logged in multiple locations.
· Transport Layer Security (TLS) connection between CUP and OCS: this feature was not tested in this release.
As you can see, you quickly start to lose a lot of the functionality of OCS. I will stress that the above is strictly related to Cisco, and may not be completely accurate for other RCC Scenarios.
The other option, and most optimal solution in my opinion can be most closely referred to as a standard Enterprise Voice Scenario. Really, it is the cheap way of doing remote call control.
Last year I had multiple voice deployments which had to provide interop between OCS and the existing PBX, mostly Avaya and Cisco systems. A key requirement of all of these deployments was the ability to pilot OCS functionality but also have access to their old phone for use. The architecture we used to provide this can be seen below. We had to make a connection between the OCS environment and the PBX, whether it was a Sip trunk to cisco, or a PRI connection via media gateway to the other systems. From there we have two options for routing incoming/outbound calls for OCS enabled users.
The first scenario is where the PBX controls the call routing. All PRIs, or SIP trunks come directly into the PBX, from there you have routing rules to route certain numbers over a trunk to OCS. This can be accomplished by setting routing rules at the PBX level, or simply forwarding your PBX Desk phone to your OCS extension, which will route it over to the OCS Trunk. It is important to note that in both scenarios you are configured for different extension on the PBX and OCS. Where your “real” extension goes depends on how you wish to route/forward calls. Regardless, any DID numbers, or existing extensions are still usable, it’s just a matter of getting the call there. In this scenario for example, you may have “fake extension” in OCS, and when your existing extension is rung, your cisco phone forwards the call to your OCS extension, in the PBX this new block of OCS extensions is configured explicitly to route over that new trunk, this is the simplest way to make this connection happen with the least amount of changes on the existing PBX environment.
The other scenario lets OCS control the call routing. In this scenario all PSTN calls destined for OCS Enabled users go directly to OCS. This can be more difficult to implement at first, but once it is in place, it provides a very smooth transition. This can be accomplished from a direct SIP trunking connection to an OCS mediation server, or a PRI/POTS connection from a provider, into a media gateway, which then sends the calls on to the OCS mediation server. It is possible to move all incoming PRI connections to a media gateway, which would then control all calls. From there that media gateway can send to the PBX or OCS. In the Cisco world, this could actually be a 2800 or 3800 series ISR. To some people this is a bit scary to hear at first, but really, your current PRI lines come into some sort of gateway device as it is, this would provide the same functionality. The gateways used are by companies like Dialogic and NET with great experience doing this for years for traditional PBX systems, so it is more than reliable. From here, there is also a trunk setup to the PBX to route extension dialing, as well as for simultaneously ringing the legacy PBX phone. In both scenarios the voicemail can be sent to exchange unified messaging or back to the PBX voicemail system. When OCS has no answer, it can make this choice. The PBX will be smart enough when the call comes back and is tagged with no answer, to send it directly to voicemail instead of creating an endless ringing loop.
In scenario two, if the media gateway takes all PSTN calls in, it will have some basic routes on it. Routes that control sending OCS enabled users to the mediation server, and then a default route which will send everything to cisco. Basically, if you had 5 users enabled for OCS. You would have a rule on the gateway that had 1000-1005 with a destination of the mediation server. The second route would be * (any) with a destination of the PBX. This takes the load of modifying PBX configuration.
In this specific scenario, the media gateway could be a dialogic/NET device, or simply the PRI interface on the Cisco ISR.
It is important to note that with both of these scenarios you have full functionality of both systems at any given time. You can use your cisco phone to make and receive calls, or your OC client to make and receive calls. You can also take advantage of all conferencing, and other advanced functionality that OCS has to offer like remote access.
There may be some things that need clearing up in this, and I am open to some feedback, but this is really what I have been going off as a reference point for myself with these deployments. Another important factor is the retirement of Dual Forking and RCC in Wave 14 of OCS set to be released this year, existing OCS 2007 R2 implementations will be supported, however new deployments will not. This has made some companies forget about RCC implementations all together.
This post outlines the basic process of taking the databases offline, migrating them, mounting them in the new instance and running LCSCMD to update the pool backened.
I recently did this in a production deployment of R2 and actually found a missing step, there was also a post on the Technet forums with a user having the same issue so I figured I would post the updated process here. This may not always be the case, but a key thing to check, and what ended up being the fix in my situation was the actual pool setting in active directory.
I believe the attribute that the below command updates is msRTCSIP-BackEndServer
LCSCmd.exe /Forest /Action:UpdatePoolBackend /PoolName:<pool name> /poolbe:<SQL instance name (machine\instance name)>
When I ran through this process I found that when I opened ADSI Edit and browsed to this attribute it actually had not changed.
The DN For the pool object will be located at : CN=Poolname,CN=Pools,CN=RTC Service,CN=Microsoft,CN=System/Config Container,DC=Domain,DC=com
Again this may not always be the case but in my experience this was thef ix for the issue.
Portland, ME (July 29, 2009) – Today, Winxnet, Inc. announced the launching of their new online store, which sells Microsoft-certified telephones, headsets, and accessories. Winxnet now has one of the only web stores exclusively selling this optimized hardware.
This new online store, which is located at www.mscertified.com, targets organizations who have converted to the more cost effective Microsoft Unified Communications and provides them with a convenient and quick method of purchasing additional equipment. As the cornerstone of Microsoft’s Unified Communications, Office Communications Server is the platform for instant messaging, audio and video conferencing, and internet based telephone communications for businesses worldwide.
“We have seen organizations purchasing equipment which was not designed to work with this new cutting edge Microsoft communications suite,” said Chris Claudio, CEO of Winxnet, Inc. “Winxnet recognized the need in the marketplace for these users to find the right product which will work for them and their communications needs.”
As a Microsoft Gold Certified Partner and Voice Certified Partner, Winxnet is a leader in implementing Microsoft’s Unified Communications technology throughout New England and considers this new online store as the next step in providing complete service.
“As more of our own clients convert to Microsoft Unified Communications, we wanted to offer a place to easily purchase Microsoft-certified headsets, phones, conferencing equipment and accessories,” said Chris Claudio, CEO of Winxnet, Inc. “I am proud that our own e-commerce team designed and developed this site and that we have already seen sales since our beta launch.”
Winxnet has deployed Unified Communications throughout New England for organizations such as Stanley Works, Harvard Vanguard, Eastern Maine Healthcare Systems, Aetna, Boston Medical Center and Children’s Hospital Boston.
The new Winxnet online store features Microsoft-certified devices from leading communication manufacturers such as Jabra, Polycom, and Plantronics.
Winxnet, founded in 1999, was created to provide customer-focused IT consulting services to organizations and businesses throughout southern Maine and has grown its operations to include offices in Waltham, Massachusetts and Chattanooga, Tennessee, employing more than 30 people. Winxnet’s clientele consists of both publicly and privately held businesses across a variety of industries, including retail, professional services, healthcare, hospitality, energy, and technology in addition to both non-profit and governmental organizations. Cultivating partnerships with clients has been a cornerstone of Winxnet’s success and continues to be a top business priority moving forward.
Winxnet is a premier Microsoft Gold Certified Partner and is headquartered in Portland, Maine. For more information, please visit www.winxnet.com.
We have done many deployments that have been LCS 2005 to OCS 2007 R2 migrations, however recently we encountered our first experience where migrating the global settings from the System Container to the Configuration Container in Active Directory was requested by the customer.
This process is outlined in documentation provided by Microsoft that can be found here: http://www.microsoft.com/downloads/details.aspx?FamilyID=23236784-508e-44c9-809d-30ff245928d8&displaylang=en
The important thing to note here is that the documentation is clearly outlined for OCS 2007 R1 to R2 migration scenarios, NOT LCS 2005 Sp1 to OCS 2007 R2 Migration Scenarios. The documentation states this works for LCS as well as OCS however, we ran into a bunch of flaws in the documentation that I will outline below with workarounds.
First off, LCS was never meant to work with the configuration container, Microsoft released an update here: http://support.microsoft.com/kb/911996 that supposedly would fix this. Basically if you had not installed that KB Update and tried to use LCSCmd to prep the forest with the /global:configuration switch it would error out with Invalid Parameters. Once you install this patch, the LCSCmd will take the /global:configuration switch and report a success. The interesting part here is that any version of LCS 2005 Sp1 Forest or Domain prep will not perform the correct functions on the Global Settings if they are stored in the configuration container and the system container at the same time. The hard thing about this is that the documentation states to wait to delete the system container information until testing all services, unfortunately this is impossible.
Here are the various issues I ran into while performing this migration. First off, the scripts do their job just as they should, the script would successfully migrate the Global Settings containers to the Configuration Container. We did however start running into some minor issues when we went to update the user DN References. We noticed the user DN references script was not making any changes and kept saying it was not complete.
We decided to check the msRTCSIP-PrimaryHomeServer setting to see if these changes had indeed been made, we viewed users in different OUs and confirmed they were pointing to the configuration data for their home server.
From here we started to panic so we decided to test if we could start the LCS Service. The LCS Service would fail to start with the error messages shown below:
When using lcserror.exe to lookup the error code provided in the last error this was the response:
In the LCS Management Console there were two pools showing up, both with the same name. One pool would have no servers and users, and the other would have all of the servers and users. This was a good way for us to confirm that all users and servers were pointing to the Configuration Container for their information. The above error states it cannot find the AD objects it needs, which still didn’t seem to make sense because it was pointing to the configuration container. When checking the objects through ADSI Edit I noticed that the global settings containers were in the correct places, however none of the proper permissions had been applied to them, this usually happens during Domain Prep, which as I had mentioned above will not work with the global settings being in the System and Configuration Container at the same time. We manually added the RTCDomain groups to the containers with the proper permissions however the services still would not start.
Microsoft was able to confirm that the LCS Services would not start with the information in the System Container as well as the Configuration Container. After using the migration script to delete the System Container information the service still failed to start. I ran a domain prep check on the domain and was able to see the Microsoft container was not showing as ready. Once the domain prep was run again, all permissions were correctly added to the objects in the Configuration Container and the LCS Services would start and everything was functioning again.
To summarize key things to note about the process that differs from the documentation:
- You must delete the information from the system container before running domain prep or else Domain Prep will not be able to add the permission correctly and the LCS Services will not start.
- When updating the user DN References it may not always show as completed, however you can verify by checking the msRTCSIP-PrimaryHomeServer setting through ADSI Edit.
Hopefully Microsoft can get this documentation updated soon, or atleast an announcement about this in a public blog, I have to imagine this is causing a lot of havoc on the LCS to OCS Migrations.