Difference between a roaming network and a extended network?

I am looking to set up 5 new Airport Extremes at the office. Looking online for the best setup, I came across two network types; roaming and extended. Which one will be faster. I have a feeling that a roaming network would be, but I am unsure. The office is rather large, so I also had a feeling that this would slow down an extended network. Any thoughts?
Also the network will have around 40 PCs, 20 Macs, and possibly 4 Apple Tvs.

A "roaming" network is one in which all of the wireless access points are connected to a common Ethernet "backbone".
Since there is virtually no bandwidth loss in a wire, the overall performance of this type of network is superior to any other type of extended networks.
In an "extended" network, the wireless access points are connected together wirelessly. Since a wireless signal loses strength and speed quickly through the air, or any obstructions in the signal path, this type of network is far less desireable than a "roaming" network.
In addition, an "extended" network is much more likely to pick up wireless interference, which will further degrade the operation of the network.
Check with any networking pro and they will quickly confirm that an "extended" network using wireless to connect access points would not be suitable for a business or any other application where there will be a number of users on the network simultaneously.
Speaking of a network pro, a modest investment that you might make to have an IT specialist come to your site, take some measurements and discuss your requirements with you.....then present you with a written proposal specifying what the network can and cannot do would be a wise thing to consider.
This will undoubtedly save you more money in the long run than trial by error, not to mention the numerous headaches that will occur along the way. Unless you have done this type of thing in the past with success, it might be best to put egos aside and let the pros tackle a job for a pro.
One final thought.....Apple wireless routers are designed for home use.....not commercial applications. There just might be a reason that you will not find Apple routers in the control room of an Apple store.

Similar Messages

Which airport is good to extend my wifi, what is the difference between the AirPort Extreme and the airport express base sstation

What is the difference between the AirPort Extreme and the airport express base station and which one can extend my wifi router.

With rare exceptions of a few older routers, neither one can extend a non-Apple router's network wirelessly - they are not designed that way - but you can extend the wireless network if the Extreme is hardwired to the router or you can connect wirelessly and join the network as an access point that will provide remote ethernet access but not produce or extend the wireless signal - here is a comparison of the Apple base stations - http://www.apple.com/wifi/

Difference between the 5 ghz and the 2.4 ghz network on the Airport Extreme

Strenght signal-wise, is there a difference between the 5 ghz and the 2.4 ghz network on the Airport Extreme?
Is the 5 ghz network on the Airport Extreme the 802.11n signal that is supossed to have better speed and strenght than the 802.11g spec?
I am confused because I can not tell the difference in performance between both signal on my new A.E.

The laws of physics always dictate that in order to gain something....let's say speed....you have to give up something else.
In return for higher speed capabilities, 5 GHz signals are not as strong as 2.4 GHz signals, so they do not travel as far, or penetrate obstructions as well as 2.4 GHz signals.
If your Mac is in close proximity to the AirPort Extreme, it will probably connect to the 5 GHz band. If you take your Mac to the other end of the house, it will probably connect to the 2.4 GHz band. The point is, the Mac will choose the best signal quality and connect automatically based on its location in relation to the AirPort Extreme.
If you are curious to know which band the Mac is connecting to at an given time, hold down the option key on your Mac while you click on the fan shaped AirPort icon and look for the Channel setting. You will see either 2.4 GHz or 5 GHz displayed.

Difference between Oracle Clusterware Network Heartbeat and Disk Heartbeat

Can soemone please explain the difference between Oracle Clusterware Network Heartbeat and Disk Heartbeat.
• If a node does not send a network heartbeat for <MissCount> (time in seconds), then node is evicted from cluster
• If disk heartbeat (voting disk) is not updated in <I/O timeout>, then node is evicted from cluster
In my openion both communcation uses network. If network is down how come disk heartbeat be updated?

kamranjalal wrote:
Can soemone please explain the difference between Oracle Clusterware Network Heartbeat and Disk Heartbeat.
• If a node does not send a network heartbeat for <MissCount> (time in seconds), then node is evicted from clusterThis is the interconnect messaging miss happening between the nodes. If the nodes are going to get a delay of more than 30 seconds, the node eviction will occur.
• If disk heartbeat (voting disk) is not updated in <I/O timeout>, then node is evicted from clusterThis is for the disk only. For example, due to some reason, you are not able to access the disk, may be due to a failure in the path or access media or failure in the multipath, that would all result in the disk timeout.
Aman....

Differences between XI 3.0 and PI7.0?

Hi Experts,
I want to know the major differences between XI 3.0 and PI7.0?
can anyone suggest me some weblogs which explains the all the new features of PI7.0.....as i'm very much keen to learn PI7.0
Thanks
Faisal............

Hi,
There is no different between XI3.0 and PI 7.0 but there is a lot difference in XI3.0/PI 7.0 and PI 7.1.
Refer the below thread for Xi and PI difference:
PI 7.0 and XI 3.0
there are many threads with sme topics
New highlights for SAP NetWeaver Process Integration 7.1 are:
Enterprise Services Repository as a central storage location for enterprise service definitions and lifecycle management data for all enterprise services
Universal Description, Discovery, and Integration (UDDI) 3.0compliant services registry for runtime management of enterprise services
Improved support for standards such as Web Service Reliable Messaging (WS-RM), WS Policy, Security Assertion Markup Language (SAML)
Extended support for high volume scenarios
Business Activity Monitoring for process definition of milestone monitoring (event correlation)
Improved SAP NetWeaver Administrator support for central configuration and administration of both mediated and point-to-point scenarios.
XML payload validation
Process editor modeling enhancements: step groups, integrated alert management, configurable parameters
Integration of human interaction (generic user decision)
WS-BPEL 2.0 preview.
Message Packing.
Local Processing in Adapter Engine.
Reusable UDFs.
Lookup function with multiple results.
Refer the below link form where the most of the above information has been taken:
1) Capability and Enhancements of SAP NetWeaver Process Integration 7.1:
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/community/capabilityandEnhancementsofSAPNetWeaverProcessIntegration7.1&
2) New SAP NetWeaver Process Integration:
/people/udo.paltzer/blog/2007/04/26/new-sap-netweaver-process-integration-release-planned-for-2007
3) Enhancement in PI 7.1:
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/profile/2007/07/27/briefdescriptionaboutEnhancementinPI7.1&focusedCommentId=40564
4) SAP NetWeaver Process Integration 7.1 - Overview of New Capabilities:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/706005a3-3bd6-2910-91ae-a2016239bdcf
5) SAP NetWeaver PI 7.1
/people/daniel.bianchin/blog/2007/12/19/all-you-wanted-to-know-about-sap-netweaver-pi-71-and-more
This section has all the relevant links for each topics:
Enterprise Services Repository:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/4073b4c4-7137-2a10-a5a9-abb618b7a5e7
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e0301486-758c-2a10-9d84-a195556df422
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/903a4127-5403-2a10-0a96-e9452c3ab1de
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/c0f90f22-678c-2a10-91a0-f1f1bf7ff191
Usability Features in SAP NetWeaver PI 7.1 Development and Configuration Times
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a0e7734f-e969-2a10-24b6-df58a710941c
Advance adapter engine:
/people/william.li/blog/2008/01/10/advanced-adapter-engine-configuration-in-pi-71
/people/william.li/blog/2008/02/07/display-adapter-synchronous-message-content-in-rwb-of-pi-71
Preview on New Features of the Integration Directory in SAP NetWeaver Process Integration 7.1
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10c0de4b-7876-2a10-e286-8412668643a8
Usability Features in SAP NetWeaver PI 7.1 Development and Configuration Times:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a0e7734f-e969-2a10-24b6-df58a710941c
SAP Network Blog: Share User-Defined Functions in Message Mappings of PI 7.1
/people/william.li/blog/2008/01/02/sap-pi-71-mapping-enhancements-series-share-user-defined-functions
Preview on New Features of the Integration Directory in SAP NetWeaver Process Integration 7.1
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10c0de4b-7876-2a10-e286-8412668643a8
SAP Network Blog: Mapping Enhancements in SAP NetWeaver Process Integration (PI) 7.1
/people/jin.shin/blog/2008/01/11/sap-pi-71-mapping-enhancements-series-mapping-enhancements-demo
New Business Process Engine Features in SAP NetWeaver Process Integration
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e0068bc1-6f8c-2a10-52bb-c6ee3562feb2
Folders for more flexible and organized way of development.
/people/william.li/blog/2007/08/07/using-folders-in-pi-71 -- Folders in PI 7.1
High Volume support in PI 7.1
/people/holger.faulhaber/blog/2007/12/12/high-volume-support-in-pi-71
Upgrade to SAP NetWeaver PI 7.1
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/8085e299-718c-2a10-de94-928f62b763ce

What's the difference between these two networks?

Have searched a lot but can not find a clear answer to the difference between these two networks.
(I'm using these as examples only)
Using Airport utility
* sometimes theres a dotted line "......"
*And sometimes there's a solid line like a " } "
I chose these as an example because ours is just like the first example above.
However sometimes our presents similar to the above example only with two devices, not three.

Dotted line is wireless.. Solid line is ethernet..
Normally all ethernet should show as your lower picture since all are directly wired..
Wireless should show which Airport is the main base and which extend using wireless.
But it is 50% science and 80% voodoo (voodoo cannot count even!!)

Difference between Abstract portal Component and JSPDyn page.

Hi Experts,
What is the difference between Abstract portal Component and JSPDyn page.
Thanks,
Jay.

Hi,
The PDK provides two methods for creating a portal component:
Abstract Portal Component
The Abstract Portal Component class offers a lean method for writing HTML commands to the Web client as well as for basic event handling. It is an implementation of the IPortalComponent, which is the central abstraction of the Portal Component API.
DynPage
The Page Processor Component, which extends the Abstract Portal Component, returns a DynPage. It provides more sophisticated event handling. Controls that produce events (such as buttons and checkboxes) have an event attribute that contains the name of the event handling method. This event handling method is invoked by the DynPage when it occurs.
The JSPDynPage is an implementation of the DynPage and allows the use of the DynPage in combination with JSP (Java Server Pages).
The PDK documentation and examples focus on the DynPage. Easier event handling and the separatation of content development (JSP) from application development (Java) make the DynPage a better choice for components with interaction and changing content.
For more details, Refer thes thread,
https://fortress.wa.gov/dop/portal/irj/portalapps/com.sap.portal.pdk.basic.portalcomponentimplementation/docs/jspdynpage.html
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f0b3e9d5-b2af-2a10-20ba-9f6ce6b1a27f
Hop it helps..
GS
Edited by: Sathishkumar GS on Apr 14, 2008 2:07 PM

I did re-set my password and when I click on Install for Mavericks, I still get a box for "administrator password" and it still won't accept my new password. Is there a difference between my Apple ID and the administrator password they're asking for?

I downloaded Mavericks and it won't install. I did re-set my password and when I click on Install for Mavericks, I still get a box for "administrator password" and it still won't accept my new password. Is there a difference between my Apple ID and the administrator password they're asking for? I never had an administrator password-- I just hit enter and have never had a problem before with previous installations. I'm on an iMac, from 2007, running Mt. Lion (version 10.8.5). I've been looking for other's posts who may be having the same problem, but haven't found any. Can anyone help?

Ugh. The 'no password, no work' thing is a recent Apple development. I ran into it on my system and ended up having to do a clean install on a partition I fully erased.
I suppose, if you have the ability to, go online and look up how to burn a bootable DVD image. Download the 10.8.4 image then use the Disk Utility to make a boot image of it. You'll need a dual-layer DVD or a USB drive (or memory stick at least 8GB) If you've got an optical drive, burn the disk, if you've a USB device, use that.
Then get a pocket drive and copy your important files off the system or let Time Machine do a full backup.
When the backup is done, insert the disk and hold down the C key until the machine boots off of the DVD. At the point you get to the start window, go to the menu and choose the Disk Utility.
In the Disk Utility, reformat the drive. You go to the actual DRIVE (not the Macintosh HD, but the root above it that is the actual hard drive device)
I always do this and *partition* it into several volumes, the benefit being, you can store all of your music, documents and importans stuff on that secondary storage volume you make - it will have it's own index and then the first volume is where you put the OS and it will have it's own index as well. That way, if the OS throws a wobbler and you need to reinstall, you don't lose your data.
Depending on the size of your hard drive, it is good to give your OS partition at least 60GB and optimally 100GB, and the rest for storage.
Name your volumes, use the little box sliders to manually size them or put that number in the size window, select for the format, Mac OS Extended (Journaled) and hit Apply and then the Disk Utility will quickly create your new partitions.
Once finished, quit the Utility and it will return you to the OS installer. Select the volume you want to install to and it should start up and install.
Once the installation is done, you'll get the new machine startup then you MUST put in a password for the computer. Once you're in, and to the desktop, don't bother with any Mountain Lion updates, go right to the App Store and get the Mavericks update and let it install the app to your Applicaitons folder, then do that install.
On a side note, there MAY be a way to make a disk image from the Mavericks application and avoid the entire Mountain Lion step.. I honestly do not know, but a bit of hitting the search engines may find out if there is. I think that if you looked for "make Mavericks boot disk or boot image' you may find something.
Good luck!

Differences between CTI OS Server and CTI Server ?

Hello community,
I've been working with CTI Desktop for a while but I'm not clear about the differences between CTI OS Server and CTI Server?
If you go to http://docwiki.cisco.com/wiki/Unified_CCE_Software_Compatibility_Matrix_for_8.5(x) and read note 10, they make diffrences between both products.
Thanks in advance,
Alejandro

CTI Server was the original CTI interface into ICM. It uses a network communication protocol, GED-188 I believe, for communication between the client and server. This is relatively difficult to program against. CTIOS and it's related SDKs were developed to provide an easier method of developing desktops and integrating desktop applications. CTI Server communicates with ICM, CTIOS Server communicates with CTI Server, and desktop applications using the various SDKs communicate with CTIOS Server. Cisco may be looking to get away from CTIOS Server in the future because of their decision to integrate Finesse with CTI Server rather than CTIOS Server. Hope that helps.

Difference between Crsytal Report 2011 and Crystal Report for Enterprise 4

difference between Crystal Report 2011 and Crystal Report for Enterprise 4.0?
I think Crystl Reprt 2011 has more function, is it right?

Hi,
I recently attended a SAP Virtual trianing on SAP Business Objects BI 4.0.
Here are few extracts from that which probably shows some light to you:
SAP Crystal Reports 2011
1. UI and associated processing servers remain the same as CR 2008
2. Incremental update to CR 2008 with a few new features*
3. Continue to provide current CR 2008 functionality as-is for existing customers
SAP Crystal Reports for Enterprise 4.0
1. Major update & redesign of the Crystal Reports Designer and associated processing servers
2. Focus on streamlined report design, reporting against BI 4.0 Universe, & reporting against SAP BW data
3. Provide the foundation for all future releases of Crystal Reports
Differences between these two releases:
Data Source & Usage Type                                       General Recommendation
1. SAP BusinessObjects BI 4.0                                        SAP Crystal Reports Relational Universe (UNX) for Enterprise
OLAP Universe (UNX)
2. SAP NetWeaver BW 7 BEx Query (BICS)                    SAP Crystal Reports for Enterprise
3. SAP NetWeaver BW 3.5 BEx Query                             SAP Crystal Reports 2011
4. SAP Profitability Cost Management                              SAP Crystal Reports for Enterprise through Analysis View
SAP Strategy Management
SAP Budget, Planning and Consolidation
SAP Extended Analytics
5. Platform Driven Alerting                                                SAP Crystal Reports for Enterprise
6. Business Views                                                           SAP Crystal Reports 2011
7. Direct RDBMS or OLAP access                                    SAP Crystal Reports 2011
    SAP ERP/ Live Office Content/
    Enterprise search content
Regards
Gowtham

Difference between Wsus 3.0 and Wsus 4.0

Hi all,
I would like to know what are differences between Wsus 3.0 and Wsus 4.0.
I have already notice that for Local Publishing, the method IPublisher.PublishPackage(sourcePath,
additionalSourcePath, packageDirectoryName), totally ignore the "additionalSourcePath" parameter.
Are there any documentation or web site where I can find differences between Wsus 3.0 and 4.0 ?
Thanks.
David COURTEL
IT Technician
Wsus Third-Party Softwares Publishing :
http://wsuspackagepublisher.codeplex.com

I would like to know what are differences between Wsus 3.0 and Wsus 4.0.
The differences between WSUS v3 and WSUS v6 (please note the correct version number) are documented ... somewhere ... but at the moment I can't find them. (Presumably it would be in the Release Notes for Win2012, but that idea is a bust.)
In short, these are the notable distinctions:
WSUS v6 is compiled with the .NET Framework v4
WSUS v6 provides an extended interface for management via PowerShell
WSUS v6 supports SHA256 hashes (which were implemented by the WUAgent v7.8 and rolled back to the WUAgent v7.6 in KB2720211 and WSUS v3.2 in KB2734608)
I have already notice that for Local Publishing, the method IPublisher.PublishPackage(sourcePath, additionalSourcePath, packageDirectoryName), totally ignore the "additionalSourcePath" parameter.
Changes to the API should be reflected in the
SDK.
Also worth of note.. publishing TO a WSUS v6 server must be performed from a Windows Server 2012 system or a Windows 8 system with RSAT. Publishing to a WSUS v6 server from a WSUS v3.2 console cannot be done due to internal dependencies in the Local
Publishing API on the build number of the console and server involved in the publishing process.
Lawrence Garvin, M.S., MCITP:EA, MCDBA, MCSA
SolarWinds Head Geek
Microsoft MVP - Software Distribution (2005-2013)
My MVP Profile: http://mvp.support.microsoft.com/profile/Lawrence.Garvin
The views expressed on this post are mine and do not necessarily reflect the views of SolarWinds.

Difference between a WEB service and a Enterprise Service?

Can Anybody explain me the difference between a WEB service and a Enterprise Service?

Hi Anilkumar K Naidu ,
Web service
A Web service is a self-contained, modularized functionality, which can be published, discovered, and accessed across a network using open standards and which is supported by SAP NetWeaver. Web services cover services provision for integration within an enterprise as well as cross enterprises on top of any communication technology stack, whether asynchronous or synchronous, in any format.
Web Services in the NetWeaver framework play an important role in facilitating the integration of disparate applications from various departments or trading partners and thus increasing business productivity. This benefit allows small and medium businesses also to integrate their business applications with larger trading partners. The benefit derived from this seamless integration introduces security concerns when all the business logic is now being exposed through a standard interface that is a catalyst for security vulnerabilities. SAP Security Managers must use automated diagnostics tools to ensure that the security vulnerabilities are caught in pre-production and in post-production phase.
Web Services Testing: SAP Netweaver Platform
http://www.crosschecknet.com/web_services_testing_SAP.php
How Web services play a key role on the SAP NetWeaver
http://www.sap.info/public/INT/int/index/Category-28943c61b1e60d84b-int/0/articlesVersions-500244687cbd30ffd
How to develop a Simple Web Service Application Using SAP NetWeaver Developer Studio & SAP XI 3.0
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/5f3ee9d7-0901-0010-1096-f5b548ac1555
How To... Set Up a Web-Service Related Scenario with SAP xi
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/befdeb90-0201-0010-059b-f222711d10c0
Enhancing Your Web Services with SAP Exchange Infrastructure
http://www.sappro.com/downloads/SAPXI.pdf
Web Services, Part XI: Consuming Multiple Web Services
http://www.webreference.com/js/column106/
Vulneribility assesment of SAP Web Services
http://www.crosschecknet.com/resources/white_papers/sap_va.pdf
Enterprise Service
Enterprise Service-Oriented Architecture (Enterprise SOA)
Enterprise SOA is a blueprint for an adaptable, flexible, and open IT architecture for developing services-based, enterprise-scale business solutions. With SAP NetWeaver as a technical foundation, enterprise SOA moves IT architectures to higher levels of adaptability and moves companies closer to the vision of real-time enterprises by elevating Web services to an enterprise level.
An enterprise service is typically a series of Web services combined with business logic that can be accessed and used repeatedly to support a particular business process. Aggregating Web services into business-level enterprise services provides a more meaningful foundation for the task of automating enterprise-scale business scenarios.
SAP Enterprise Services Architecture
http://en.wikipedia.org/wiki/SAP_Enterprise_Services_Architecture
ENTERPRISE SERVICEORIENTED ARCHITECTURE DESIGN, EVELOPMENT,AND DEPLOYMENT
http://download.sap.com/platform/esoa/brochures/download.epd?context=FB8D5E235B637255604CD1EDB755014400C523BC4E4632245A59C838A212B5F04C71A43F8B38FC591628F4C698D8CAA859405AA974284758
Enabling Enterprise Services
http://help.sap.com/saphelp_nw04s/helpdata/en/80/be7042f1e6d242e10000000a1550b0/content.htm
Enterprise Service-Oriented Architecture
https://www.sdn.sap.com/irj/sdn/enterprisesoa
Define Enterprise Services using the Enterprise Services Community
https://www.sdn.sap.com/irj/sdn/define-es
Enterprise service bus
http://en.wikipedia.org/wiki/Enterprise_service_bus
Enterprise Services Workplace
http://erp.esworkplace.sap.com/socoview(bD1lbiZjPTgwMCZkPW1pbg==)/flddisplay.asp
cheers!
gyanaraj
****Pls reward points if u find this helpful

What are difficulty between oc4j included Jdeveloper and oc4j extended?

Hi all!
I don't know why i deploy application on oc4j included Jdeveloper when it's run ok but i deploy on Oc4j extented when it's run not ok.
I want to know the difficulty between oc4j included Jdeveloper and oc4j extended? How to config oc4j extented?
i've tried deploy appliction on oc4j extended. i get this error:
JNLPException[category: Download Error : Exception: java.io.IOException: HTTP response 404 : LaunchDesc: null ]
     at com.sun.javaws.cache.DownloadProtocol.doDownload(Unknown Source)
     at com.sun.javaws.cache.DownloadProtocol.getDownloadSize(Unknown Source)
     at com.sun.javaws.LaunchDownload.downloadJarFiles(Unknown Source)
     at com.sun.javaws.LaunchDownload.downloadEagerorAll(Unknown Source)
     at com.sun.javaws.Launcher.downloadResources(Unknown Source)
     at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
     at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
     at com.sun.javaws.Launcher.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
thank a lot!

The main difference is the version of OC4J. They do not often match. If the extended OC4J is a later version than the one packaged in JDeveloper, then applications developed in JDeveloper are not guaranteed to work in extended OC4J. It is always recommended
to develop and test against the OC4J in JDeveloper.
If you are using JDeveloper 10.1.2 make sure to use the right admin.jar (always point the path to the one in OC4J install ) in your OC4J connection.
In future release Oracle is trying to address such problems by allowing user to configure JDeveloper against a particular version of OC4J.

What is difference between G50-70 442243 and G50-80 80L0006CIN?

What is difference between G50-70 442243 and G50-80 80L0006CIN? Both listed same specification. and same price tag. I am planning to purchange one but which one is better?

There are 2 RAM slot in this laptop model. You can extend RAM upto 16 GB.

Difference between NM-1CE1T1-PRI and NM-HDV2-1T1/E1

please if any one can give me the difference between NM-1CE1T1-PRI and NM-HDV2-1T1/E1

Hi Ahmad,
NM-1CE1T1-PRI does *not* support voice. Please refer to the following urls:
Cisco E1/T1 ISDN PRI Network Module - Data Sheet
http://www.cisco.com/en/US/products/hw/modules/ps2797/products_data_sheet09186a0080189f95.html
Voice Hardware Compatibility Matrix (Cisco 17/26/28/36/37/38xx, VG200, Catalyst 4500/4000, Catalyst 6xxx)
http://www.cisco.com/en/US/products/hw/routers/ps259/products_tech_note09186a00800e73f6.shtml
Relevant Interfaces and Modules
http://www.cisco.com/en/US/products/ps5855/products_relevant_interfaces_and_modules.html
-Vaibhav

Difference between a roaming network and a extended network?

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