IOS conference bridges and MRGL

Hello All,
I have a question. My customer has a multisite centralised topology with three remote sites. These three remote sites I have configured to use regions with codec G728 to communicate with the head office which uses G711 codec. I would like to conserve bandwidth on WAN hence the reason. So i have configured the dspfarm conference profile on the router for all codecs and this is registered to the call manager. I also configured a MRGL which has in the following order the software bridge and then the hardware bridge associated to it. I have assigned this MRGL to device pool associated with the different sites.
For the device pool assigned to remote sites, will I need to have the hardware conf bridge alone assigned to the MRGL? Since software conf bridge supports only G711 codec.
Should I create a another MRGL and associate with the DP for the remote sites with the hardware conf bridge alone?
I not onsite to test, but I wanted to get this ironed out until i go out to work tomorrow to test.
Thanks

Okay thanks. But if Phone A at the head office has an MRGL of SW bridge first and has initiated a conference with a phone b at the remote site which has an MRGL with the hardware bridge as priority, which media resources will be used? Will it be the phone A since its the initiator?
I have changed my MRGL to have the HW bridge first and SW bridge second, is it best practice to have the router handle conferencing?

Similar Messages

IOS Conference Bridge Vs. IOS Transcoder

Hello all,
I was wondering what the primary advantage is to setting up both IOS Hardware Transcoding resources and an IOS conference bridge for DSP farm use.
The reason I ask is that I know that an IOS transcoder can actually be used for conference purposes, is the IOS conference bridge a more efficient way to do this vs. just using the transcoder?
The reason I ask is because from my research our end users need to use the transcoding resource far more often than conference bridging for g.729-g.711 conversions. If I wanted to utilize the DSP farm resources for a router and knew that transcoding would be used frequently and conference bridging only occasionally wouldn't it make sense to configure that resource as as a transcoder and let it also handle the conference bridging, even though it will not be as efficient at it as a dedicated IOS resource?

Hi,
I believe DSP chips can be set as a transcoder or conf bridge, but once you allocate a DSP chip as a Transcoder, it remains as transcoder and cannot be used as a Conf Bridge. Of course a Transcoder can also act as an MTP.
Secondly, you definitely need DSP based HW Transcoders whenever you need anything which does not involve G.711 (e.g. G.729 to G.729ab or G.726 etc) aka Universal Transcoding. Software Transcoders can only do transcoding between G.711 and any other Codec.
It really depends on if your network needs a transcoder or not (in my case, so far I have never needed a transcoder) however there have been plenty of Conf Bridge requirement (e.g. Meet Me Conf Bridges or Ad-Hoc Conf bridges).
A transcoding can be really avoided whole together if either your system is completely G.711 or both the parties can / do support the other alternate codec e.g. a remote site to local site can be configured to use G.729 codec, however if both the parties can use G.729, then there is no need for a Codec at all.
HTH

Video Conferencing with IOS Homogeneous Video Conference Bridge

Dears,
I have CUCM 8.6 and 3945 Cisco router with 2 x PVDM-256
I configured the IOS Homogeneous Video Conference Bridge. and I did the required configurations in the router. and I can see the conferencing bridge is registered.
I put the conference bridge in the existing MRG and MRGL. But I am not able to do video conferencing. I can get only the audio.
is there any thing missing ? any reolad should I do ?

Sure.
So on the gateway that you have the video conference configured, in which we have guranteed voice as the configuration, you will also add in an MTP profile. The MTP profile will be configured as software and have the appropriate codec configured that you may be using because of your regions. We have g722-64 and passthrough on one because we saw the E20's requesting MTP resources from the logs.
We also have additional MTP profiles configured for other codecs to include G729r8, etc.
Register the codecs to CUCM.
It depends on what you are trying to accomplish but we were shooting for w448p thus made sure that the "Region" for the device pool associated with the Media Resource Group for each MTP was set to 1MB for the video bandwidth.
I hope this makes since if not I will try to pull down a config for you

Problems in conference bridge after migrating to 4.1.3SR3 from 4.1.3

very recently i upgraded my CCM from 4.1.3 to 4.1.3 SR3. i use 3725 with DSP farm as conference bridge ( the ios code on 3725 is 12.3.11 T7 )
the conferencing stopped working for me as soon as press conference on my after callint the 2md party, both my calls get dropped.i see that the CCM registers the bridge and also in SCCP config of gateway i see the CCM registered.
for testing purpose i configured one my 3845( with same version) over WAN as my conference bridge and then conference worked fine for me.
there are few command difference in 3725 and 3845 . In 3845 i can configure CCM version as 4.1 and in 3725 i can do only 3.1 or greater. i am not sure if this is problem or not.
in CCM traces i got this unusal error which is attached
please let me know any pointers on this
thanks
manish

We are also having the same issue, 3725 used as conf resource, as soon as we press conf button all calls are dropped with fast busy. we are using CM 3.3.5 and IOS 12.3.7T12.
cisco TAC poked around and could not find anything wrong with config (of course, we have other sites with identical config all working ok). so they said it must be bad DSPs even thou there are no DSP errors on the router. i doubt it is DSP issue but i'll let you know when TAC figures it out.

Meetme No Conference Bridge

I have had my conference bridge fail, when attempting either a meetme or adhoc conference brige I get a No conference Bridge message on the phone. I am running a software conference Bridge and have made no changes to any of my bridges. I have CUCM 8.6., any advice is appreciated.

What type of codec are using the IP phones and the conference bridge?
what is the status of the conference bridge shows at call manager.?
Br,
Nadeem
Please rate all useful post.

IP communicator giving error as "No conference Bridge"

Hello This is Rahul,
I am having CUCM 8 and have installed three ip communicators (CIPC)in it. Now when i try to take all three communicators in a conference call i am getting error "No conference Bridge" on IP phone from which i am trying for conference call. Can anyone help here to solve this issue.

Rahul,
The Conference Bridge Configuration procedure is detailed here http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_0_2/ccmcfg/b04cnbrg.html
Please complete the steps then you should be able add the conf bridge to MRGL & thus will be available for phones to utilise.
Pls rate the post if it helps.
GP.

Type of conferences bridge

In the Cisco Call Manager version 6, the types of conferences bridges are: Bridge Hardware, Cisco IOS Conf_Bridge, Dixieland CFB, Subbit CBT and Flint Conf Bridge, of all this, What kind of type is the MCU 3545?

You should have the option of a video conference bridge.
Brandon

No conference bridge

Hi.
I have CUCM 7 , and suddenly conference function stop worked. I can call to one person, hit conference button, call to another person, but when hitting conference button again, it says - no conference bridge.
In media recources i have configured software conference bridge which is assigned to device pool and have registred status. Cisco IP Voice Media Streaming App is started.
I try to add it to MRG and MRGL, it does not help, but before worked without adding CFB to MRGL.
I found some solution for single device - in phone configuration - add manually MRGL which by default is none, but i have more then 100 phones and this is will be not proper way to make conference function work on all phones.
Any suggestions about why it stop worked and how to bring it back?
Codec used by default is g711. CUCM has been rebooted 2 times, and CFB has been readded , but it does not help.

Make sure all the region settings are set to g711. If the conference bridge is allocated to a MRG then it will not be available by default to other phones which do not have a MRGL defined with this resource in the MRG. For all the IP phones to have access to it by default, you need to remove it from all MRG's. However, assigning the MRGL's to devices with proper MRG's is the recommended approach.
HTH
Manish

Conference Bridge - HCB

Hi
My router currently has a "profile conference" which supports 18 conference with 16 participants
dspfarm profile 1 conference
codec g711ulaw
codec g711alaw
codec g729ar8
codec g729abr8
codec g729r8
codec g729br8
maximum conference-participants 16
maximum sessions 18
associate application SCCP
It is possible to support a conference of 32 participants and holding conferences of 16 participants?
If this is possible would have a guide on how to accomplish this?
NOTE: You should assume that the router has the necessary DSP to support the conference.
In addition the server is a cisco callmanager 8.6 with Cisco IOS Enhanced Conference Bridge
Greetings and thanks for your help

Hi Jaime
Thanks for your answer.
with this setup can I have 18 conferences of 16 participants and conference of 32 participants.
sccp ccm group 999
bind interface GigabitEthernet0/0
associate ccm 1 priority 1
associate profile 1 register NOMBREX
associate profile 2 register NOMBREZ
dspfarm profile 1 conference
codec g711ulaw
codec g711alaw
codec g729ar8
codec g729abr8
codec g729r8
codec g729br8
maximum conference-participants 16
maximum sessions 18
associate application SCCP
dspfarm profile 2 conference
codec g711ulaw
codec g711alaw
codec g729ar8
codec g729abr8
codec g729r8
codec g729br8
maximum conference-participants 32
maximum sessions 1
associate application SCCP
and configure a MRG with these 2 CFB
Greetings and thanks for your help

How to enter a conference bridge code?

I'm switching from Blackberry where I was able to enter a telephone number followed by the conference bridge code and all that I had to do to dial and enter the code was hit enter twice. It looked like this: 1-999-999-9999, #99999999*.
Is something similar available on iPhone?
Thanks.

Type the number in exactly the same, put a couple comas after the numer for pauses to allow the phone system to answer then enter the access code followed by a #, then press Send.

Customized dial script for conference bridge meeting ID

Hello, first time poster, here.
I have the 8830 and want to peform the following actions:
open an apointment which contains a meeting ID for a conference call (when you dial into a bridge)
have an option with the 'blackberry' button to 'copy' that value
(similar to current built-in function to call a number (two 'bb' button pushes), but instead to autoselect on the word boundary and 'copy')
Then select the conference bridge dial-in number and, prior to dialing, insert a pause at the end of the phone number, then tack that ID number onto the end
Then dial the full number, including the ID value after the pause (allowing the autoattendant to answer), which will then feed it the ID and press pound
Is there a way to script this in the BB OS environment? Any info on tools to access these capabilities?
I'm a technical guy but new to the BB OS.
Thanks in advance.
Eric

In the Outlook invitation type the bridge numbers in this format. Use no more than 2 dashes in the bridge phone number. Skip one space. Type an x, the PIN and the # sign. The participants can sign on now with one BB click. The meeting organizer will still have to manually key in the start code, but can still one click the bridge to that point.
EXAMPLE: +1555-222-3456 x123456#

Bridge and AP, using a 1200 series bridge.

Hi Folks,
I would like to bridge from an AP1131 to an AP1262 using the 5.8 ghz radios then allow access via the 2.4 ghz radio on the 1260. I will use a directional antenna for the 1260 bridge to optimize performance. The 5ghz radio will only be used for bridging. The ap 1131 is an AP right now but only offers access on 2.4 ghz. There are only a few clients.
The 1130 will be sitting in a window with the ant5160 outdoor mounted and pointed at it from ~200 feet away.
Does anyone see an issue? Maybe suggest a better parts list. I was originally thinking of using a 1310 as the bridge and a 1140 as the AP but that configuration is not as flexiable and the 1310 part is very old... I understand I will not get N throughput since the 1130 is not N capable, it is already installed. I need autonomous AP and can upgrade to 1140 in the future to improve performance.
I plan to upgrade to WCS next year, does it support this type of configuration? I am assuming that IOS does...
So here are the part numbers that I plan to use.
AIR-AP1262N-A-K9
AIR-AP1131AG-A-K9
Directional 5.8 ghz
AIR-ANT5160NP-R=
Omni 2.4 ghz
AIR-ANT2430V-R=
Thanks for any help,
Joe

Joe,
I am a little confused by your post but can offer some answers.
First of all I assume your intending to purt the external antennas on the 1262 not the 1130.
In terms of configuration you will need to configure 1 of the 802.11a radios in either the 1130 or the 1262 as a station role of root and the other in station role of non-root, that will enable them to connect to each other and bridge, then you can configure the 802.11b/g radios any way you choose and everythign should work as I think your intending,
over this distance you may get decent speeds. I'd be more inclined to use 1262's on each side with appropriate antennas; depending on what exactly your trying to accomplish on each side as far as coverage goes..
In terms of moving to WCS and lightweight mode it really doesn't support this configuration.
HTH

CUCM 9.x conference bridge not working

Hi all,
I'm new to CUCM and IP telephony, and as soon as I have set up my new CUCM I have encounter a problem, as it usually happens that way
Anyhow, I have install CUCM, insert phones in it, setup up router, all the dial peers, connect it via SIP to outside, and everything is working fine. Well, not everything. My conference calls can not be established. I know I need to set up dspfarm for conference with outside calls, however, I'm having problems even with creating conference inside my LAN with all phones being connected to same CUCM.
For example, I'm calling my college, she picks up, then I pres conference, call my other callege, she goes on waiting, he picks up, and I have line open with him, and she is on waiting... When I click conference again, I get the message on phone, no conference bridge.
I have Cisco IP Voice Media Streaming App up and running(i have tried reseting service, still nothing). Under conference bridge I have default conference bridge with default settings. I have also tried same thing on my trial CUCM 8.5x with demo licences and 3 softphones, and everything is working. However, on fully implemented CUCM 9.x and 7942 phones, get no conference bridge message all the time... Any help would be more then welcome

Hello Wesley,
It was only after I posted that I notice I have posted on wrong forum... My apologies to everyone, it was unintentional
Thank you kindly for your response, and although I have checked, and region is set to use G.711 and G.722, you still might be correct, casue, as I said, I'm new to all of this, and I might be looking into wrong thing... I will look a bit more into it, and see what I might have done wrong, and if I need further assistence, I will post it on right place next time
If I need to check correct answer, so this topic can be closed, please let me know, I will do so.
Once again, my apologies to everyone

CallManager 5.1 no conference bridge available / cannot complete conference

CM 5.1, Conferencing was working at one point, the servers were rebooted and now conferencing does not work, received no conference bridge available error message when trying to complete conference, found the CM was advertising g722 codec, disabled that function. Now receiving cannot complete conference error message, rebooted IP voice streaming media services, reset conference bridges, both are registered, anybody got any other ideas on why this is not fuctioning properly??
Thanks ahead of time...

No Available Conference Bridge
Symptom
The following message displays: No Conference Bridge Available.
Possible Cause
This could indicate either a software or a hardware problem.
Recommended Action
1. Check to see whether you have any available software or hardware conference bridge resources that are registered with Cisco Unified CallManager.
2. Use the Cisco Unified CallManager Real-Time Monitoring Tool to check the number of Unicast AvailableConferences.
The Cisco IP Voice Media Streaming application performs the conference bridge function. One software installation of Cisco IP Voice Media Streaming will support 16 Unicast Available Conferences (three people/conference), as shown in the following trace.
To make a call between two devices that are using a low bit rate code (such as G.729 and G.723) that do not support the same codec, you need a transcoder resource.
Assume Cisco Unified CallManager has been configured such that the codec between Region1 and Region2 is G.729. The following scenarios apply:
?If caller on Phone A initiates a call, Cisco Unified CallManager realizes it is a Cisco Unified IP Phone model 7960, which supports G.729. After the digits are collected, the Cisco Unified CallManager determines that the call is destined for User D who is in Region2. Because the destination device also supports G.729, the call gets set up, and the audio flows directly between Phone A and Phone D.
?If a caller on Phone B, who has a Cisco Unified IP Phone model 12SP+, initiates a call to Phone D, this time the Cisco Unified CallManager would realize that the originating phone only supports G.723 or G.711. Cisco Unified CallManager would need to allocate a transcoding resource so audio would flow as G.711 between Phone B and the transcoder but as G.729 between the transcoder and Phone D. If no transcoder were available, Phone D would ring, but as soon as the call was answered, the call would disconnect.
?If a user on Phone B calls Phone F, which is a Cisco Unified IP Phone model 12SP+, the two phones would actually use G.723, even though G.729 is configured as the codec to use between the regions. G.723 gets used because both endpoints support it, and it uses less bandwidth than G.729.

Root-Bridge and Non-Root Bridge Support

I was wondering if the ISR Routers (Cisco 1811w) support the root-bridge and non-root-bridge feature. If not is there another device apart from the 1310 and 1410 bridges that support this feature?
Thank You,
VT

Hi VT,
The ISR AP supports both of these roles;
Access Point Link Role Flexibility
Access Point Link Role Flexibility allows access point radios to operate in a combination of radio roles,
such as access point root, bridge root (with or without clients), bridge nonroot (with or without clients).
This provides a more flexible deployment scheme to support the various applications requirement. Note
that the ISR AP does not support access point repeater and WGB.
Wireless Non-Root Bridge
The wireless non-root bridge allows the access point radio to operate as the remote node in a point to
point or point to multi-point network.
Wireless Root Bridge
The wireless root bridge role provides support for both point-to-point or point to multi-point bridging.
http://www.cisco.com/en/US/docs/ios/12_4/12_4x/release/notes/rn1800xj.html
Hope this helps!
Rob

IOS conference bridges and MRGL

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