Conference call failure

I am part of a non-profit that irregularly holds board meetings via a Skype audio conference call. We usually have 7-8 members, all free skype users, in on the calls, but on our last one we had 10. It was an utter failure. Most members could not hear all of the contributions made by others -- audio would cut out while they were speaking. Several couldn't hear anyone else talk for long stretches. At least one never heard anyone else at all. When we had conferences with the fewer number, one particular person had these kind of problems (which I attributed to her connection speed), but not everyone had them as happened this time. Even the host (chairman) was having the same difficulties. He thought we may have crossed some threshold in going from 8 to 10. After nearly an hour of struggling to make ourselves heard, we gave up on the audio and did a few crucial agenda items via chat before ending the call.
Would having the host of the conference call be a premium user possibly eliminate such problems, or do we have to address the Internet connection speed of the host? (Or both, maybe?)
It is really difficult for this non-profit to get its board members together at one time. It can take a month or more to re-schedule after a failure like this. We need something reliable, which was why we chose Skype in the first place.

What protocol are you running on the GW??
MGCP? H323?
If H323, have you properly configured the codecs??? H323 uses G729 by default if nothing is configured.
CUCM CFB only supports G711 and for MOH to work with other codecs you need to enable them under IPVMS service parameters.
HTH
java
If this helps, please rate
www.cisco.com/go/pdihelpdesk

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Call failures when lockfs -f is ran of /opt/SMAW

During our update scenario, we initially disable local mirrors for all the local file systems like, /,/opt/SMAW,/var,/export/home.
During this disabling was call failures observed when "lockfs" was executed on the /opt/SMAW file system.
There was no call failure observed during disabling of other local file systems.
As a result of this some of the processes are blocked.
A Perf tool was run on the node to collect information like CPU.Load etc. At the time lockfs -f /opt/SMAW was executed , they was temporarily no response.
One point important here is that the disabling of all the local mirrors finished successfully.
Next a fresh test with disabling the lockfs option resulted in no call failures. So the question here is why lockfs behave like this only on /opt/SMAW .
My understanding of lockfs is -- . Lockfs with "-w" option, is used to put a "write lock" { all lock operations implicitly perform a flush } on the mirror peice on which fallback will happen if need be.So it is necessary that the data in the unmirrored part is intact.
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Edited by: rbruby on Mar 25, 2009 11:19 PM

Thanks Lasse,
When running that tool, all the links are showing zero utilization - not sure if the tool is able to show any more detailed information?
I should state that this Lync implementation is not live, there no Lync clients out on the corporate network, and I'm not expecting any traffic on the WAN site links at this point.
It just seems to be an issue when accessing as a remote user. At this point I think it must be because I have misconfigured CAC. And because it is happening for a conference and not peer to peer for the remote user, then it is probably the relationship
between the front end server pool and Edge server / remote user.
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Its around about times like now where I wonder if it is something simple like a service needing restarting so I'll double check things like this. If you have any other ideas it would be greatly appreciated - a bit stuck.
Regards,
James

External callers cannot connect to conference call

Hello to anyone that can help. The situation I have is that we switched to SIP trunk direct connect to our Mediation server and since have not been able to connect PSTN calls to a conference call. The person dials in and is told they are being connected
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user form a conf call, but they cannot call in. I have seen other people mentioning using snooper to look at the S4 component logs. I am doing that now, but if anyone has any other advice I would appreciate it. The issue appears to be that our Lync server
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Thanks!

Hi,
1. Check if the Media Gateway is certified by Microsoft with the help of the link below:
http://technet.microsoft.com/en-us/office/dn788945
2. Check if there are any error message on Mediation Server when the issue happen next time.
3. Double check dialin plan on Lync Server Control Panel, make sure all dialin plan are updated.
Best Regards,
Eason Huang
Eason Huang
TechNet Community Support

Did you know that the carrier Verizon offer the merge conference call or internet while on call on the iphone? Only AT

Did you know that you can't use the merge function on a iPhone 4s with Verizon Wireless? They blocked the function only AT&T has it, also Verizon doesn't allow browsing the Internet while on a call like AT&T, huge mistake Verizon. For people that conference call, don't get tricked into changing carriers until Verizon changes this feature.

Not sure about the merging of calls, but being able to browse the internet while on a call can't be done with CDMA technology -- so it's not that Verizon doesn't allow it, it just can't be done on their network. This is old news ...

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Hey D.j.,
Welcome to the Apple Support Communities. The following article will go over the Conference features and will provide some help.
iPhone: Using Conference
http://support.apple.com/kb/ta38608
If you continue to have issues with the Conference feature, the next step would be to reset settings or backup and restore the device and setup as new. To reset settings on the device: Settings > General > Reset All Settings
If you need to restore your iPhone, the following article will assist with this.
iOS: How to back up your data and set up as a new device
http://support.apple.com/kb/HT4137
Regards,
-Norm G.

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Happy to have been of help. Hope all goes smoothly.
BTW, for the sake of others who may help you here, it's usually most polite if you mark the post that answered your question as being the one that "solves" it, not your own post. That's how people get points here, if a questioner marks their post as either "helpful" or "solving". It's not an issue for me, but for those just starting out in the forums it may be important to them. See:
https://discussions.apple.com/static/apple/tutorial/mark.html
and
https://discussions.apple.com/static/apple/tutorial/reputation.html
Regards.

Problems with conference calls(adding and merging calls) after upgrade to ios 8.1.2 on iphone 5s

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Some of the scenarios that I have experienced is:
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http://www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a0080094045.shtml

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Verizon recording cut into my conference call

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Conference call number and code in email on iOS 7

I get emails inviting me to a conference call which typically has a 1-800 telephone number followed by a few lines later for the participant code.
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Dial in: 1-866-123-xxxxx
Host Code: 123484xx
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Host: 1-866-123-xxxxx,,123484xx or
Participant: 1-866-123-xxxxx,,237284xx
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Check Settings App > General > Text size to see if the slider has been moved one way or the other.
Try a reset: Simultaneously hold down the Home and On buttons until the device shuts down. Ignore the off slider if it appears. Once shut down is complete, if it doesn't restart on it own, turn the device back on using the On button. In some cases it also helps to double click the Home button and close all apps BEFORE doing the reset.

CONFERENCE CALLS DONT WORK ON OS 7 ALONG WITH RESPOND WITH TEXT WHILE ON A CALL

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MY CARRIER IS VERIZON AND I SPOKE TO THEM IN REGARDS AND THEY NOTE I AM NOT RESTRICTED ANYWAY SINCE I AM A COMPLETE UNLIMITED USER.
THE OTHER ISSUE I HAVE NOTICE RIGHT AFTER THE UPGRADE THAT YOU CAN NO LONGER RESPOND TO A INCOMING CALL IF YOUR ON A CALL WITH "RESPOND WITH TEXT" THIS ONLY WORKS NOW IF YOUR NOT ON THE PHONE WHICH YOU CAN RESPOND WITH TEXT.
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Please stop YELLING!
MMS messages and iMessages require a data connection. Due to the nature of Verizon's network, you can not access cellular data while on a call.
As for conference calling, call Verizon back and escalate the call until you get someone who understands the word "provisioning". Have them re-provision your account.

External callers unable to join conference calls

Scenario: A conference call is set up using the scheduler. Lync users are able to join the conference calls. Users from outside PSTN are unable to join the call. They get to the attendant, and are told they are being joined to the
conference, then get a message "Sorry, I can't seem to connect you to your meeting right now. Goodbye." and the call disconnects.
Looking at call traces, I see the following error messages in the CAAServer log:
Component: CAAServer
Level: TL_ERROR
Flag: TF_DIAG
Function: CaaCall.EndTransfer
Source: caacall.cs(3631)
Local Time: 08/26/2014-18:28:36.161
Sequence# : 0001BE31
CorrelationId : 64624070
ThreadId : 0BA8
ProcessId : 0BB0
CpuId : 0
Original Log Entry :
TL_ERROR(TF_DIAG) [0]0BB0.0BA8::08/26/2014-22:28:36.161.0001be31 (CAAServer,CaaCall.EndTransfer:caacall.cs(3631))[64624070]ConferenceFailureException. ConferenceID=[91127] InstanceID=[b64b9467-db72-41bb-a2b5-673d76777ea4]
Component: CAAServer
Level: TL_ERROR
Flag: TF_DIAG
Function: CaaCall.HandleUnexpectedException
Source: caacallerrorhandling.cs(51)
Local Time: 08/26/2014-18:28:36.226
Sequence# : 0001D265
CorrelationId : 64624070
ThreadId : 0BA8
ProcessId : 0BB0
CpuId : 2
Original Log Entry :
TL_ERROR(TF_DIAG) [2]0BB0.0BA8::08/26/2014-22:28:36.226.0001d265 (CAAServer,CaaCall.HandleUnexpectedException:caacallerrorhandling.cs(51))[64624070][Enter] exception=[Microsoft.Rtc.Collaboration.ConferenceFailureException:The operation failed due to a response
from the server. For more information, examine the properties on the exception and inner exception.
   at Microsoft.Rtc.Signaling.SipAsyncResult`1.ThrowIfFailed()
   at Microsoft.Rtc.Signaling.Helper.EndAsyncOperation[T](Object owner, IAsyncResult result)
   at Microsoft.Rtc.Collaboration.McuSession.EndSendCommandInternal(IAsyncResult result)
   at Microsoft.Rtc.Collaboration.AudioVideo.AudioVideoMcuSession.EndTransfer(IAsyncResult result)
   at Microsoft.LiveServer.Caa.CaaCall.EndTransfer(IAsyncResult asyncResult, Boolean& retry, Exception& caught)
Detected at System.Environment.get_StackTrace()
   at Microsoft.Rtc.Collaboration.ConferenceFailureException..ctor(String message, Exception innerException)
   at Microsoft.Rtc.Collaboration.Conferencing.SendCommandAsyncResult.CreateConferenceFailureException(ConferenceCommandResponse commandResponse, Exception innerException)
   at Microsoft.Rtc.Collaboration.Conferencing.SendCommandAsyncResult.ProcessCccpResponse(SipMessageData messageData, responsetype response, Boolean& isPendingResponse)
   at Microsoft.Rtc.Collaboration.Conferencing.SendCommandAsyncResult.ProcessStatusMessage(SipMessageData statusMessageData, responsetype response)
   at Microsoft.Rtc.Collaboration.Conferencing.StatusMessageReceivedWorkItem.Process()
   at Microsoft.Rtc.Signaling.AsyncWorkitemQueue.ProcessItems()
   at Microsoft.Rtc.Signaling.SerializationQueue`1.ResumeProcessing()
   at Microsoft.Rtc.Signaling.SerializationQueue`1.ResumeProcessingCallback(Object state)
   at Microsoft.Rtc.Signaling.QueueWorkItemState.ExecuteWrappedMethod(WaitCallback method, Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallbackInternal(_ThreadPoolWaitCallback tpWaitCallBack)
   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback(Object state)] m_conferenceID=[91127] m_conferenceUri=[sip:[email protected];gruu;opaque=app:conf:focus:id:4TPY99KF] InstanceID=[b64b9467-db72-41bb-a2b5-673d76777ea4]
Component: CAAServer
Level: TL_ERROR
Flag: TF_DIAG
Function: CaaCall.HandleUnexpectedException
Source: caacallerrorhandling.cs(51)
Local Time: 08/26/2014-18:28:36.226
Sequence# : 0001D265
CorrelationId : 64624070
ThreadId : 0BA8
ProcessId : 0BB0
CpuId : 2
Original Log Entry :
TL_ERROR(TF_DIAG) [2]0BB0.0BA8::08/26/2014-22:28:36.226.0001d265 (CAAServer,CaaCall.HandleUnexpectedException:caacallerrorhandling.cs(51))[64624070][Enter] exception=[Microsoft.Rtc.Collaboration.ConferenceFailureException:The operation failed due to a response
from the server. For more information, examine the properties on the exception and inner exception.
   at Microsoft.Rtc.Signaling.SipAsyncResult`1.ThrowIfFailed()
   at Microsoft.Rtc.Signaling.Helper.EndAsyncOperation[T](Object owner, IAsyncResult result)
   at Microsoft.Rtc.Collaboration.McuSession.EndSendCommandInternal(IAsyncResult result)
   at Microsoft.Rtc.Collaboration.AudioVideo.AudioVideoMcuSession.EndTransfer(IAsyncResult result)
   at Microsoft.LiveServer.Caa.CaaCall.EndTransfer(IAsyncResult asyncResult, Boolean& retry, Exception& caught)
Detected at System.Environment.get_StackTrace()
   at Microsoft.Rtc.Collaboration.ConferenceFailureException..ctor(String message, Exception innerException)
   at Microsoft.Rtc.Collaboration.Conferencing.SendCommandAsyncResult.CreateConferenceFailureException(ConferenceCommandResponse commandResponse, Exception innerException)
   at Microsoft.Rtc.Collaboration.Conferencing.SendCommandAsyncResult.ProcessCccpResponse(SipMessageData messageData, responsetype response, Boolean& isPendingResponse)
   at Microsoft.Rtc.Collaboration.Conferencing.SendCommandAsyncResult.ProcessStatusMessage(SipMessageData statusMessageData, responsetype response)
   at Microsoft.Rtc.Collaboration.Conferencing.StatusMessageReceivedWorkItem.Process()
   at Microsoft.Rtc.Signaling.AsyncWorkitemQueue.ProcessItems()
   at Microsoft.Rtc.Signaling.SerializationQueue`1.ResumeProcessing()
   at Microsoft.Rtc.Signaling.SerializationQueue`1.ResumeProcessingCallback(Object state)
   at Microsoft.Rtc.Signaling.QueueWorkItemState.ExecuteWrappedMethod(WaitCallback method, Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallbackInternal(_ThreadPoolWaitCallback tpWaitCallBack)
   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback(Object state)] m_conferenceID=[91127] m_conferenceUri=[sip:[email protected];gruu;opaque=app:conf:focus:id:4TPY99KF] InstanceID=[b64b9467-db72-41bb-a2b5-673d76777ea4]
Component: CAAServer
Level: TL_ERROR
Flag: TF_DIAG
Function: CaaCall.TransferCompletedQueued
Source: caacall.cs(3739)
Local Time: 08/26/2014-18:28:36.231
Sequence# : 0001D269
CorrelationId : 64624070
ThreadId : 0BA8
ProcessId : 0BB0
CpuId : 2
Original Log Entry :
TL_ERROR(TF_DIAG) [2]0BB0.0BA8::08/26/2014-22:28:36.231.0001d269 (CAAServer,CaaCall.TransferCompletedQueued:caacall.cs(3739))[64624070]Call Transfer Failed. InstanceID=[b64b9467-db72-41bb-a2b5-673d76777ea4]
The unexpected error entry includes this information in the diagnosticUtils section:
Component: CAAServer
Level: TL_INFO
Flag: TF_DIAG
Function: DiagnosticUtils.TryCreateSignalingHeader
Source: diagnosticutils.cs(269)
Local Time: 08/26/2014-18:28:36.231
Sequence# : 0001D268
CorrelationId :
ThreadId : 0BA8
ProcessId : 0BB0
CpuId : 2
Original Log Entry :
TL_INFO(TF_DIAG) [2]0BB0.0BA8::08/26/2014-22:28:36.231.0001d268 (CAAServer,DiagnosticUtils.TryCreateSignalingHeader:diagnosticutils.cs(269))Creating SignalingHeader for InstanceID=[b64b9467-db72-41bb-a2b5-673d76777ea4], header-name=[ms-diagnostics], header-value=[10010;Reason="Gateway
side Media negotiation failed";Source="LYNC-FE.itprocare.com";component="MediationServer";sipresponsetext="Invite with Replaces failed because Gateway side reinvite failed.";DialogID="f94f35b9-7f5d-4bcd-94a8-de0fb2d8c4c6;df1bec7e24;24010080"]
Which matches up with an error in the SIP trace:
TL_INFO(TF_PROTOCOL) [0]0DEC.0A48::08/26/2014-22:28:36.151.0001ac66 (SIPStack,SIPAdminLog::TraceProtocolRecord:SIPAdminLog.cpp(125))$$begin_record
Trace-Correlation-Id: 3329945913
Instance-Id: 00000688
Direction: outgoing
Peer: lync-fe.itprocare.com:51307
Message-Type: response
Start-Line: SIP/2.0 491 Invite with Replaces failed because Gateway side reinvite failed.
From: <sip:[email protected];gruu;opaque=app:conf:audio-video:id:4TPY99KF>;tag=26f350618b;epid=6DF0663499
To: <sip:[email protected];gruu;opaque=srvr:MediationServer:BMFt1DuKo1KYsGtnqeobCwAA;grid=9d179e4c3aeb4fd7aedd36d7853ad98b>;epid=26F55811B8;tag=2e6beef249
CSeq: 5 INVITE
Call-ID: af099053-d8aa-4ca4-9820-936e8522611c
Via: SIP/2.0/TLS 10.160.1.47:51307;branch=z9hG4bKeb2e7ed6;ms-received-port=51307;ms-received-cid=9B00
CONTENT-LENGTH: 0
P-ASSERTED-IDENTITY: <sip:5853307343;[email protected];user=phone>
SERVER: RTCC/4.0.0.0 MediationServer
ms-diagnostics: 10010;source="LYNC-FE.itprocare.com";reason="Gateway side Media negotiation failed";component="MediationServer";SipResponseText="Invite with Replaces failed because Gateway side reinvite failed."
ms-diagnostics-public: 10010;reason="Gateway side Media negotiation failed";component="MediationServer";SipResponseText="Invite with Replaces failed because Gateway side reinvite failed."
ms-endpoint-location-data: NetworkScope;ms-media-location-type=intranet
Message-Body: –
$$end_record
The trunks are configured with REFER off and MediaBypass Off.
We have recently moved to a direct SIP trunk from a vendor on Microsoft's Certified list.
Lync version is 2010, with the latest CUs applied. All other calling appears to be working correctly. The certificate on the servers are using the SHA1 algorithm (I have seen some similar issues discussed if this was not the case.)
At this point, I have reached the end of my immediate troubleshooting skills with this system. Can anyone offer any suggestions as to what might be going on here?
Thanks for any help.
-Tim

Hi,
Please check if the default gateway associated to the Mediation Server is up or not.
Please check if Media traffic on the Gateway be blocked with the issue of wrong encryption. Make sure it is using SRTP (not RTP). If you use RTP, please change it and then test again.
Best Regards,
Eason Huang
Eason Huang
TechNet Community Support

I want to know what's the conference call in community level and how to use it

i want to know what's the conference call in community level and how to use it

Welcome to Apple Support Communities
Conference calls are got when you reach level 4. Sometimes, ASC hosts may do a conference call about something related to Apple Support Communities. You will be notified through mail or through the "Using Apple Support Communities" forum.
The last community calls were only for level 6 and higher users, so it's possible that you don't get invited to any until you reach level 6

A few conference call questions

If I make a conference call, it will take double the minutes right? I am essentially making two calls. If I make this conference call at night (I have the lowest plan with 450any/5000n&w), it will take double the minutes from the 5000, right?
Thanks.

draenic wrote:
I have to be absolutely sure on this
Just so you know. If you need to be absolutely sure, why ask a forum of iPhone users that are mainly here to help with issues with the iPhone. At the Apple site to boot. Your contract is with AT&T. They have all the info about billing etc. Apple just made the device, after that, it is all AT&T.
Yes others can tell you what they think, what they noticed, etc. But just call AT&T and ask if you have to be *absolutely sure*. Just my advice.

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