MCU vs VCS

Similar Questions

• SIP spam attack and MCU and vcs - e call

  as far as I know sip call spam attacks is done against the videoconference, connected with a public ip address, I disabled the sip but im not sure if my mcu and vcs - e with sound are vulnerable to them? they pose no threat to security for them? and if so, how? and what can we do about it?

  It is a well known problem and it affects H.323 and SIP, take a look at the below threads:

  https://supportforums.Cisco.com/discussion/12340591/nuisance-h323-calls-SX20

  https://supportforums.Cisco.com/discussion/12336591/sourceh323idcisco-incomingcalls

  https://supportforums.Cisco.com/discussion/12508641/Cisco-source-spam-calls-stepped-complexity

  https://supportforums.Cisco.com/discussion/12613681/attack-vcse

  There are many more discussions on this issue, the above, this is just a small selection. :)

  You do not need to disable SIP on the VCS-E, all you need to do is turn SIP UDP unless you need it for voice services.

  You can protect yourself by using a CPL on the VCS-E who will avoid calls to go through your MCU, or anything else you have sitting behind the VCS-E. This is assuming that you are using a combo of VCS-C/VCS-E, with the VCS - C behind a firewall and the VCS-E outside the firewall, for example in the demilitarized zone.

  Having just trouble ask points of termination or MCU sitting in nature with public IP addresses.

  These scans, moreover, mainly looking for systems that will allow them to make free international calls.

  /Jens

  Please evaluate the answers and makr as 'answered' questions as appropriate.

• 2 MCU and VCS Expressway, routing problem

  Hi all

  We have a design with a group of control VCS (2 members), cluster VCS Expressway (2 members), and a couple of microcontrollers (registred H.323 on VCS control cluster with the same prefix: 90).

  Each highway has a public IP address and incoming calls from outside can only be routed to microcontrollers:

  [email protected]/ * / for MCU_1 and [email protected]/ * / for MCU_2 (we don't have external DNS resolution).

  I put a conversion into motorway of VCS to change [email protected]/ * / to [email protected] / * / and [email protected]/ * / to [email protected] / * /.

  The problem is when someone calls [email protected]/ * / sometimes (randomly) the call is routed to MCU_2 (instead of MCU_1) and if the appellant see the auto attendant.

  The occcurs even then of the appeal [email protected]/ * / (MCU_2), sometimes the call is routed to MCU_1.

  Any idea what can cause this device or a way to make it work well?

  Thanks for help.

  José

  I think still that separate prefix would work, but here are a few ideas:

  Are incoming calls which do not possibly using SIP that is being interoperability H323 or incoming calls all certainly the H323?

  If you want to keep pure H323, you could perhaps just have a search rule/turn on your VCS-E who changed [email protected] to an E164 e.g. 90... and had a search on your VCS - C rule that says 90... stop at the local area.

  I also noticed that you direct calls to [number]@MCU-IP - have you tried to direct all calls to [number]@VCS-C IP instead?  If the VCS is the holder of a registration for a number, it should be able to deliver accordingly.

• Cisco VCS and MCU - Conference does not

  Dear community members

  I have problems in the VCS configuration to work with the MCU to join to several endpoints in a conference. The components that I use:

  -Cisco VCS control v8.7.

  -Cisco 5300 MCU 5310 v 4.5 (1.72)

  -3 x SX20 end points

  I recorded every endpoint and MCU on VCS, but I'm not able to do a conference call 3-way, the only option is 1 video and 1 audio (I disabled the Multisite option). It seems that VCS does not yet call the MCU in the game.

  Kindly help us with it.

  Can you tell us how you set up the Conference and how you have configured MCU and endpoints?

  From the sounds of it, you call each end point of one of the SX20s, but you must call simply directly in the Conference on the MCU.  If you want to have a conference point to point between two end points and then degenerate into a multipoint conference on the MCU, you must configure Multiway.

  With the help of Multiway with Cisco TelePresence systems

• Cisco TP driver to an existing VCS/MCU integration

  Hi all

  We have environment with an existing MCU and VCS. The customer used to directly configure MCU conference number. now, need us intagrate a conductor of the TP Cisco and move behind the conudctor MCU. This confiuration require erasing MCU config. I need to know if the man any procedure to move configured conferences to TP driver and keep these conferences for this operation?

  Kind regards

  Yes, just be sure that the alias that you use for the CMR does not match those created by you using the web interface, as models of the Conference and for the CMR aliases are created in TMSPE and not in the conductor himself.  Here is the TMSPE Deployment Guide, if you don't have it already.

• MCU IP Cisco component video conference

  Hello

  I install an MCU on my environment, but is not able of composition to another device of video conferencing, dial the IP address, but it does not conect the 'call '.

  MCU are able to make that kind of call?
  If Yes, how should I proceed with this call?

  Thank you and best regards.

  Pedro,

  Do you search rules necessary on the RESUME calls to ip address?

  If you MCU is VCS registry all call req will go to the VCS control and vcs decided where to make calls. Let me tell you want to call a unit on the internet using the ip address.

  MCU sends req call vcs, and then vcs needs a search rule where he should deliver this ip address. by default on the CV "called to unknown ip" is indirect and so you need to add a search rule VCS-control as "any" target "any ip address" would be the crossing area.

  by calls VCS - E unnknown ip are set to 'direct' by default if you don't need all the rules of research. If the firewall settings are clean, then call get settle.

  also when you say dial to ip address, what ip address speak you an interal or public ip address end point?

  Rgds

  Alok

• External Audio calls to Cisco MCU

  I have a requirement for an external audio channel to access the shared meeting room that is hosted on the MCU 5320 Cisco.

  This can be achieved directly through the MCU or is it a requirment for another audio bridge

  Well, you can integrated MCU with VCS using SIP Trunk, even if the common deployment is to have registered in VCS, MCU or by using SIP, H323, or both. You can also integrate the MCU with CUCM, but in this case, MCU will be a multimedia resource of CUCM, thats why it is only recommended to the ad hoc conferences. You can also integrate the MCU with the driver of telepresence using the API, but it is often only when you have several MCU pools to manage.

  To integrate the Cisco MCU with VCS, you can consult this document:

  http://www.Cisco.com/en/us/docs/Telepresence/infrastructure/MCU/Install_Guide/Cisco_TelePresence_MCU_Deployment_guide_1-31.PDF

  To learn more about how to work with auxiliary self on Cisco MCU, take a look at this guide:

  Page 88 - http://www.cisco.com/en/US/docs/telepresence/infrastructure/mcu/admin_guide/Cisco_Telepresence_MCU_5300_Series_4-4_Product_administration_guide.pdf

  If you want to integrate MCU with control systems third call, I can't say that it will work, because I still have my suggestions on basis Cisco official documentation, and there is little in the literature on integration of MCU with control systems third call.

  If you think that your question has been resolved, please mark the right answer.  =)

  Concerning

  Paulo Souza

  Please note the answers and mark it as "answered" as appropriate.

• TMS, CUCM and MCU

  Hello

  One of our clients have a MCU5320 and it is registered with the CUCM as SIP. Also, they have a VCS + Expressway VCS control for internet calls. Now the customer plans to buy Cisco MSDS management systems and planning conferences. I don't know if we can schedule conferences on the MCU that is registered with the CUCM VCS not only through TMS. Where do I sign the MCU to the VCS to program by MSDS?

  We want to do this because we do not have enough licenses non-traversal appeal with respect to the control of the VCS.

  Kind regards

  Chambers oumar

  Hi Marc,

  If you register with CUCM MCU, you wil not be able to plan the Conference through it. You can use it for ad-hoc conferences.

  However, if you register MCU with VCS, you can use it to conferring both scheduling and ad - hoc MCU.

  However, if you go for TMS, your TMS can also monitor CUCM. I'm not sure benefits.

  It will be useful.

  Thank you

  Saurabh

• T3 trouble shooting sight-screen split problem

  Hello

  My company has 3 T3 devices and dozens of devices C20. Main features including 8710 MCU and VCS, etc.

  Now, I'm facing a problem is that if I add T3 A, B and an in a multipoint conference in 8710 C20, I can see full screen with two seats in the House of T3 on display C20.  but once I have add T3 C in this conference, the C20 screen will separate in 3 lines, all 3 T3 are shown on one screen.

  Only T3 C can cause the problem, but I do not remember that I made any unique configrations.

  Everyone here knows about a problem like this before?

  I'd appreciate any suggestions really.

  Kind regards.

  before adding T3 Cafter C added T3

  Hello

  I think it has to do with the configuration of T3.  Goto the call configurstion (from DBT) and check if the custom panel put the setting is set to switch with PIP Board.

  concerning

• Auto unwanted calls hit on my E Expressway

  Dear all,

  The unwanted automatic call hitting my E. Expressway from [email protected]/ * /.

  How can I avoid or block it so that this appeal will stop hiting on my EXP_E.

  Also suggest me if I want to block temporary external public VC call and how do I do this?

  Thanking you.

  It is a well known problem that has been raised repeatedly in recent years. Take a look at some of the threads in this thread: https://supportforums.cisco.com/discussion/12484441/hack-attack-vcs-express and this could be interesting:.

  https://supportforums.Cisco.com/discussion/12917996/SIP-spam-call-attack-and-MCU-and-VCs-.e and

  https://supportforums.Cisco.com/discussion/12472426/rogue-calls-Expressway-e-can-they-be-blockeddropped

  In short, you can block these types of calls by a combination of CPL and search rules, the corresponding section in the Administrator's guide is referenced in some of the threads.

  You will not be able to stop these calls hit your E, but at least you can prevent these calls succeed, Yes, they will appear in the call log, but that's all.

  If you want to block all external calls, you will need to put behind a firewall and do not allow something external.

  Moreover, for calls SIP that you can prevent a large number of these calls by disabling SIP UDP, however, prevent the H.323 calls is not as simple as that.

  /Jens

  Please note the answers and score the questions as "answered" as appropriate.

• Cannot receive an outside call

  Hi all!

  We have such a problem. We have an infrastructure of control VCS, VCS Expressway and MCU. VCS Expressway has dual NIC option enabled; 1 LAN has an internal IP, LAN 2 - public IP address (without NAT).

  Two VCS are configured according to manual)

  ( http://www.cisco.com/en/US/docs/telepresence/infrastructure/vcs/config_guide/Cisco_VCS_Basic_Configuration_Control_with_Expressway_Deployment_Guide_X7-2.pdf), with the exception of the settings NAT and firewall - we do not have.

  When we call for our network internal (for example [email protected] / * /) to the Organization of foreigners ([email protected] / * /)-everything is ok. But we cannot receive calls from outside.

  An external DNS is also configured according to manual, domain name of VCE Expressway is external can be solved.

  You have any ideas what may be wrong? Thanks in advance.

  What exactly do you see in the newspaper of the network? Can paste you it here? (Be sure to hide sensitive information such as addresses IP, etc.).

  It does not appear that you have created the SRV records required, such as

  _h323ls._udp.

  _h323cs._tcp.

  _sip._tcp.

  _sips._tcp.

  at least I'm not able to look up one of these SRV from here.

  -Andreas

• What is the difference bewteen MCU, VCS, and SRI (DSP-3)

  Hi all

  We lack CUCM 9.X. I want to integrate Cisco 9971, 8945 with TP Endpoint (EX60 and Tandberg C40). I read this wonderful document (https://supportforums.cisco.com/docs/DOC-30750), but I still have some doubts.

  What is the difference bewteen MCU, VCS, and SRI (DSP-3). For all I know, ISR running DSP3 is the chepaiest option but I don't know if the HD video is supported.

  Thanks regarding

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  Hello

  According to the document, you are referring to which I posted previously

  VCS is a call control system call manager but for video end points only, then CUCM is for voice and video, and now it becomes control system of very mature appeal for video communications with native support for video of many recordings of points

  MCU is a material that can be used to host the multi point/party video calls that can be registered to CUCM or VCS according to design

  SRI with DSP/PVDM 3 is the concept of the MCU, but can be used for small multi-point calls and normally remote sites that need local accommodation to a call to reduce the load on the WAN link when most of the participant in the same place for example! and it dose taken support HD but limited features compared to MCU

  for example PVDM3 doe does not support HD when participants are expected to use different video formats

  hope this helps

• CUCM (Cisco Jabber) - VCS - MCU (failed appeal of SIP - SIP)

  Hi all

  in our Videoinfrastructure, there is a little problem with cisco jabber client registry on the CUCM to our MCU.

  The MCU is inscribed on the VCS.

  If I make a call my Client of Jabber Cisco SIP call has failed. I call the number 4925488XXX. The callingparty is the 25203232.

  In the CUCM, there is a Routepattern who translated the «Called Party Number» number = 8099 (this is the SIP Trunk for VCS).

  Called Party Transformations:

  Called mask = 8XXX

  Take the numbers Instruction = None

  Prefix =

  Called number = 8099

  In venture capital, there is a transformation for the 8099 dialed.

  

  The MCU is registerd with [email protected] / * / on the VCS - it's self attandant.

  In the Cisco Jabber client I never receive video or audio of the MCU AA - it looks like the call's not connect.

  If I spent a glance in the VCS, I see the appeal as active and connected.

  

  Also, I traced the call made by the VCS in debug mode.

  SIPMSG:

  | SIP/2.0 180 ringing

  Via: SIP/2.0/TLS CUCM IP SIP; direction = z9hG4bK10ea4511f7965; has received = CUCM; penetration area = CUCMUC

  Call ID: [email protected]/ * /.

  CSeq: INVITE 101

  Contact: <> [email protected] / * /; GR = urn: uuid:c4a744d7-5975-52db-b21c-8c519fbab06e >; isfocus

  From: Stefan Walter "' <> [email protected]/ * */>;tag=252394~c75f2de1-fd7b-43c2-8bd0-6b72860c9048-46890229

  To: <> [email protected] / * / IP >. tag = 11B05829C2080000

  Record-Route: <> [email protected] / * / SIP; transport = tls; LR >

  Record-Route: <> [email protected] / * / SIP; transport = tls; LR >

  User-Agent: Codian MCU 4505 v4.3 (2.18)

  Content-Length: 0

  |

  "2012 10-26 T 15: 33:25 + 02:00 DDUCP001 tvcs: elements UTCTime ="2012-10-26 13:33:25, 230"Module =" network.sip"Level ="INFO": Src - ip = 'CUCM IP' Src-port ="39813"detail =" receive the method Request = CANCEL, Request-URI = sip:[email protected] / * / IP, Call-ID =[email protected] / * / IP.

  2012 10-26 T 15: 33:25 + 02:00 DDUCP001 tvcs: elements UTCTime = "2012-10-26 13:33:25, 230" Module ="network.sip" Level = "DEBUG": Src - ip = 'CUCM IP' Src-port "39813" = "

  SIPMSG:

  | CANCEL sip:[email protected]/ * /: 5061 SIP/2.0

  Via: SIP/2.0/TLS CUCM IP SIP; direction = z9hG4bK10ea4511f7965; receipts = 10.202.131.96

  Call ID: [email protected] / * / IP

  CSeq: the 101 CANCEL

  From: Stefan Walter "' <> [email protected] / * / IP>;tag=252394~c75f2de1-fd7b-43c2-8bd0-6b72860c9048-46890229

  To: <> [email protected] / * / IP >

  Max-Forwards: 70

  Date: Friday, October 26, 2012 13:33:25 GMT

  Reason: Q.850; cause = 3

  Content-Length: 0

  ########################

  Reason: Q.850; cause = 3; text = "no route to the destination.

  Do you have any hint for me where I can troubleshoot further? It's a question MCU or CUCM or VCS?

  Good bye

  Stefan

  Hi Stefan.  I would probably run a Trace SDI on the CUCM as well.  Seems the cancel is coming from CUCM side and end the call.  To check that your possibly fall on: CSCty07061, I could run the trace of the SDI and see after reception of 180 ringing of venture capital if he tries to do a DNS query for @mcu.

  The entries may look like:

  | 1.3508793, 63, 100, 2 ^ 10.52.36.15 ^ *.

  11:20:09.377 | / / SIP/SIPDns (2,72,1) / wait_SdlDnsSrvRecordRsp: received specified SdlDnsSrvRecordRsp is - 1. 0, 0, 0, 0.0 ^ * ^ *

  11:20:09.377 | / / SIP/SIPDns (2,72,1) / copyRecordRspToRecordReq: query retry SRV as a 1 request | 0, 0, 0, 0.0 ^ * ^ *

  11:20:09.377 | / / SIP/SIPDns (2,72,1) / wait_SdlDnsSrvRecordRsp: hostname (DNS A or AAAA query called a query SRV Fail) = mcu

  --------------

  If that's what your race, false address to solve the @mcu would be required for the call to go forward.  I have this based off the coast an explanation here, but cannot actually ensure that it's what your run in.  But check the trace of the SDI AFTER the 180 ringing and see.

  I hope this helps.

  VR

  Patrick

• Conference MCU SIP with VCS registration question

  Hi all

  We have a cluster of MSE 8510 MCU (software version 4.5 (1.72), Build 6.19 (1.72)) with 86 active confeneces. All of them are configured in the same way, to use H.323 and SIP registrar calls control.

  The thing is, I can see all conferences recorded under H323 and some of them just registered as SIP on the VCS cluster (X.8.2.2).

  What is the problem? Why can't all register using SIP?

  See you soon,.

  Petar

  Can you check to see how many conferences are recorded using SIP?

  If it's 50, this seems to be the maximum that can be recorded, see enhancement request CSCum48651.

• VCS-E calls directly to Codian MCU Auto standard

  How do I create rules of research on my E - VCS to route direct calls to its IP address or hostname to go in-house auto attendant Codian MCU--> my autoatendant has a 31 conference ID and we have 99 registered in my inner - VCS - C so 9931).  We had so many difficulties with external companies, connection using several addressing methods (VCS - eIP ##MCUmeetingID, or [email protected] / * /, whatever).  It is much easier to have external users, type an IP address and be dumped directly in the auto attendant and we can move everywhere where from there.  I don't know everything that the Alias Search and regex and replace the criteria and do not want to cause problems with external courses and Movi SIP calls that we use.  Need help.

  Hi, Frank.  My apologies.  X5.1.1, its under VCS Configuration > search rules > Configuration.  Should be the help alias section here.  Let me know how it turns out.

  VR

  Patrick