Ad-Hoc Conference Not working from some phones

[DataPathInc]

So far I've tested and found 3 phones that can't make a 3-way/ad-hoc conference call, but I have tested 3 or 4 others that work just fine.  Two of the phones that can't make the calls are SPA525g's and one is a 7900 series.  The phones that DO work are also spa525g's.

What I noticed today was all of the phone's that can't make the Ad-hoc conference calls all show C001 on the phone for a few seconds after the call fails.  When the call fails the person initiating the call loses both the 2nd party they called and the 3rd party, but party 2 and party 3 are actually connected and can talk to each other.  The phones that ARE working flash that they are using C0014 for a brief second.  I'm not sure what tells the phones which conference dn to grab or what is wrong with the C001 config.  I've posted parts of the config with notes below.  Please let me know if you need any additional information.

===============================================================================
sh dspfarm all
===============================================================================
Dspfarm Profile Configuration

Profile ID = 1, Service = CONFERENCING, Resource ID = 1
Profile Description : DO NOT MODIFY, active CCA conference profile - CCA2.0 codec711
Profile Service Mode : Non Secure
Profile Admin State : UP
Profile Operation State : ACTIVE
Application : SCCP   Status : ASSOCIATED
Resource Provider : FLEX_DSPRM   Status : UP
Number of Resource Configured : 16
Number of Resource Available : 16
Codec Configuration
Codec : g711ulaw, Maximum Packetization Period : 30 , Transcoder: Not Required
Codec : g711alaw, Maximum Packetization Period : 30 , Transcoder: Not Required

SLOT DSP VERSION  STATUS CHNL USE   TYPE    RSC_ID BRIDGE_ID PKTS_TXED PKTS_RXED

0    5   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    5   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    5   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    5   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    6   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    6   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    6   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    6   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    7   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    7   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    7   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    7   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    8   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    8   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    8   26.6.0   UP     N/A  FREE  conf   1      -         -         -      
0    8   26.6.0   UP     N/A  FREE  conf   1      -         -         -    

Total number of DSPFARM DSP channel(s) 16

===============================================================================
sh sccp all
===============================================================================
SCCP Admin State: UP
Gateway Local Interface: Vlan90
        IPv4 Address: 10.1.10.2
        Port Number: 2000
IP Precedence: 5
User Masked Codec list: None
Call Manager: 192.168.200.1, Port Number: 2000
  Priority: N/A, Version: 4.0, Identifier: 1
  Trustpoint: N/A

Conferencing Oper State: ACTIVE - Cause Code: NONE
Active Call Manager: 192.168.200.1, Port Number: 2000
TCP Link Status: CONNECTED, Profile Identifier: 1
Reported Max Streams: 256, Reported Max OOS Streams: 0
Supported Codec: g711ulaw, Maximum Packetization Period: 30
Supported Codec: g711alaw, Maximum Packetization Period: 30
Supported Codec: rfc2833 dtmf, Maximum Packetization Period: 30
Supported Codec: rfc2833 pass-thru, Maximum Packetization Period: 30
Supported Codec: inband-dtmf to rfc2833 conversion, Maximum Packetization Period: 30
TLS : ENABLED

SCCP Application Service(s) Statistics:

Profile Identifier: 1, Service Type: Conferencing
TCP packets rx 14212, tx 13822
Unsupported pkts rx 0, Unrecognized pkts rx 0
Register tx 3, successful 3, rejected 0, failed 0
Unregister tx 2, successful 0
KeepAlive tx 13706, successful 13706, failed 0
OpenReceiveChannel rx 99, successful 99, failed 0
CloseReceiveChannel rx 99, successful 0, failed 0
StartMediaTransmission rx 99, successful 99, failed 0
StopMediaTransmission rx 99, successful 0, failed 0
PortReq rx 0
PortRes tx 0, successful 0, failed 0
PortClose rx 0
QosListen rx 0
QosPath rx 0
QosTeardown rx 0, send 0, recv 0, sendrecv 0
QosResvNotify tx 0, send 0, recv 0, sendrecv 0
QosErrorNotify tx 0, send 0, recv 0, sendrecv 0
   err0 0, err1 0, err2 0, err3 0, err4 0, err5 0,
   err6 0, err7 0, err8 0, err9 0, err10 0, err11 0,
   err12 0
QosModify rx 0, send 0, recv 0, sendrecv 0
UpdateDscp rx 0
Reset rx 2, successful 2, failed 0
MediaStreamingFailure rx 99
MediaStreamingFailure tx 0
Switchover 0, Switchback 0

CCM Group Identifier: 1
Description: None
Binded Interface: None
Associated CCM Id: 1, Priority in this CCM Group: 1
Associated Profile: 1, Registration Name: confprof1
Registration Retries: 3, Registration Timeout: 10 sec
Keepalive Retries: 3, Keepalive Timeout: 30 sec
CCM Connect Retries: 3, CCM Connect Interval: 10 sec
Switchover Method: GRACEFUL, Switchback Method: GRACEFUL_GUARD
Switchback Interval: 10 sec, Switchback Timeout: 7200 sec
Signaling DSCP value: cs3, Audio DSCP value: ef

Total number of active session(s) 0, and connection(s) 0

Total number of active session(s) 0, and connection(s) 0

Total number of active session(s) 0, connection(s) 0, and callegs 0

SCCP Application Service(s) Statistics Summary:
Total Conferencing Sessions: 0, Connections: 0
Total Transcoding Sessions: 0, Connections: 0
Total MTP Sessions: 0, Connections: 0
Total ALG-Phone Sessions: 0, Connections: 0
Total BRI-Phone Sessions: 0, Connections: 0
Total SCCP Sessions: 0, Connections: 0

Total active sessions 0, connections 0, rsvp sessions 0
Statistic                  Count
-------------------------  -----------
Send queue enqueue error   0
Socket send error          94
Msgs discarded upon error  54

===============================================================================
sh run pieces
===============================================================================

!
stcapp ccm-group 1
stcapp
!
stcapp feature access-code
!

sccp local Vlan90
sccp ccm 192.168.200.1 identifier 1 version 4.0
sccp
!
sccp ccm group 1
associate ccm 1 priority 1
associate profile 1 register confprof1
!
dspfarm profile 1 conference
description DO NOT MODIFY, active CCA conference profile - CCA2.0 codec711
codec g711ulaw
codec g711alaw
maximum conference-participants 16
maximum sessions 16
conference-join custom-cptone CCAjointone
conference-leave custom-cptone CCAleavetone
associate application SCCP
!
!
telephony-service
sdspfarm conference mute-on 111 mute-off 222
sdspfarm units 5
sdspfarm tag 1 confprof1
conference hardware

===============================================================================
ephone-template  16
===============================================================================
softkeys remote-in-use  CBarge Newcall
softkeys idle  Redial Cfwdall Dnd Login Mobility Pickup Gpickup Newcall
softkeys seized  Cfwdall Meetme Redial Pickup Endcall Gpickup Callback
softkeys alerting  Callback
softkeys connected  Trnsfer Confrn Park RmLstC ConfList Mobility LiveRcd Flash TrnsfVM Endcall
keep-conference local-only

conference drop-mode local
!

===============================================================================
ephone dn's for Ad-Hoc conference call slots  - Phones that use C0014 seemsto work but the ones that use C001 don't
===============================================================================
!
ephone-dn  562  octo-line
number C0014 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  563  octo-line
number C0014 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  564  octo-line
number C0013 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  565  octo-line
number C0013 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  566  octo-line
number C0012 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  567  octo-line
number C0012 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  568  octo-line
number C0011 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  569  octo-line
number C0011 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  570  octo-line
number C0010 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  571  octo-line
number C0010 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  572  octo-line
number C009 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  573  octo-line
number C009 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  582  octo-line
number C008 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  583  octo-line
number C008 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  584  octo-line
number C007 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  585  octo-line
number C007 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  586  octo-line
number C006 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  587  octo-line
number C006 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  588  octo-line
number C005 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  589  octo-line
number C005 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  590  octo-line
number C004 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  591  octo-line
number C004 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  592  octo-line
number C003 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  593  octo-line
number C003 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  594  octo-line
number C002 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  595  octo-line
number C002 no-reg primary
conference ad-hoc
no huntstop
!
!
ephone-dn  596  dual-line
number C001 no-reg primary
conference ad-hoc
preference 1
!
!
ephone-dn  597  dual-line
number C001 no-reg primary
conference ad-hoc
no huntstop
!

===============================================================================
This is the DN of one of the spa525g's that does NOT work
===============================================================================
!
ephone-dn  14  dual-line
number 205 no-reg primary
label JBates 205
description James
name JBates 205
mobility
call-forward noan 399 timeout 16
!

Here is the phone for JBates
!
ephone  5
device-security-mode none
video
mac-address 68EF.XXXX.XX22
ephone-template 16
max-calls-per-button 2
username "xxx" password xxx
paging-dn 1 unicast
type 525G
button  1o14,354
!

===============================================================================
This is the DN of one of the spa525g's that DOES work
===============================================================================
!
ephone-dn  20  dual-line
number 211 no-reg primary
label MRosemire 211
description Max
name MRosemire 211
mobility
call-forward noan 399 timeout 16
!

Here is the phone for MRosemire

!
ephone  7
device-security-mode none
video
mac-address 68EF.xxxx.xx24
ephone-template 16
max-calls-per-button 2
username "xxx" password xxx
paging-dn 1 unicast
type 525G
button  1o20,360 2m13 3m17 4m21
button  5m22
!

[David Trad · Accepted solution]

Hi Data Path,

For starters, please get rid of all these:

ephone-dn  564  octo-line
!
!
ephone-dn  565  octo-line
!
!
ephone-dn  566  octo-line
!
!
ephone-dn  567  octo-line
!
!
ephone-dn  568  octo-line
!
!
ephone-dn  569  octo-line
!
!
ephone-dn  570  octo-line
!
!
ephone-dn  571  octo-line
!
!
ephone-dn  572  octo-line
!
!
ephone-dn  573  octo-line
!
!
ephone-dn  582  octo-line
!
!
ephone-dn  583  octo-line
!
!
ephone-dn  584  octo-line
!
!
ephone-dn  585  octo-line
!
!
ephone-dn  586  octo-line
!
!
ephone-dn  587  octo-line
!
!
ephone-dn  588  octo-line
!
!
ephone-dn  589  octo-line
!
!
ephone-dn  590  octo-line
!
!
ephone-dn  591  octo-line
!
!
ephone-dn  592  octo-line
!
!
ephone-dn  593  octo-line
!
!
ephone-dn  594  octo-line
!
!
ephone-dn  595  octo-line
!
!
ephone-dn  596  dual-line
!
!
ephone-dn  597  dual-line

You only need two of them, I never configure more then one anyway, the rest are just consuming resources for no reason at all you can not even use them, if your system supported that many ad-hoc conferences it would have to be a one of a kind system

Also put the "no huntstop" command on "562"

Can you also do a "sh telephony-service" and post that, I would like to see how many sessions you have enabled there as well. I am also concerned that you have left no room at all for transcoding and you don't even have a dsp profile for transcoding? You may need to rethink the configuration of the system, again another rule of thumb is to look at having transcoding enabled on the system even if you think you are not going to use it, you just never know and when it is not enabled you can end up sitting there for hours trying to work out what is going wrong.

Other than the above nothing is sticking out, in any event posting a txt file of your config is much easier to work through then it being posted on here, might want to keep that in mind, because sometimes what you post may not be enough information and we may need your whole config to make sure that everything correlates to their respective points.

Cheers,

David.

[DataPathInc]

Hello David,

Thanks for the quick response.  I removed C001 (ephone-dn 596 and ephone-dn 597) and everything started working.  All of those dn's were configured by CCA.  It's a UC560 and it's set to allow 2 meetme conference bridges with up to 16 people each and 14 ad-hoc conference calls.  The dn's generated are for C001 to C0014 so it appeared correct.  I've attached a screenshot of the CCA conferencing screen.  Thanks again for all of your help.

[David Trad]

Hi Data Path,

Thanks for updating me on how it went for you, I am glad it fixed the problem up.

Thanks also for that image. Again at this stage I only use CCA to provision the system, and one of those reasons is because of the excessive code that gets created or left behind, such as your instance.

Cheers,

David.