No more than 3 participants in Conference

[silvakizir]

Hi guys,

I have a CUCMPub and CUCMSub 8.6

I have added both CNF in the MRG.

When I try to do conference by pressing the CNF Softkey I can't have more than 3 participants. Why is that?

I then configured the Voice Gateway that has a PVDM2-64 for conferencing and then I added to its own MRG and put first the MRG in the MRGL.

When I did that and I tried to conference I saw that the DSPFarm was used but again the Max Conference parties where no more than 3.

I have provided the configuration.             Where 192.168.150.2  <-CUCMSub           and         192.168.150.1  <-CUCMPub

voice-card 0
 dsp services dspfarm
sccp local Port-channel1
sccp ccm 192.168.150.1 identifier 2 version 7.0
sccp ccm 192.168.150.2 identifier 1 version 7.0
sccp
!
sccp ccm group 1
 bind interface Port-channel1
 associate ccm 1 priority 1
 associate ccm 2 priority 2
 associate profile 1 register CFB-VG
 switchover method immediate
 switchback method immediate
 switchback interval 5
!         
dspfarm profile 1 conference  
 codec g711ulaw
 codec g711alaw
 maximum sessions 5
 associate application SCCP
!
ccm-manager sccp local Port-channel1

Show commands when already 3 conference participants active.

VG#show dspfarm all
Dspfarm Profile Configuration

 Profile ID = 1, Service = CONFERENCING, Resource ID = 1  
 Profile Description :  
 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 : 5
 Number of Resource Available : 5
 Maximum conference participants : 8
 Codec Configuration: num_of_codecs:2
 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    4   28.3.8   UP     1    USED  conf    1      67811     2513      3160     
0    4   28.3.8   UP     1    USED  conf    1      67812     2513      3153     
0    4   28.3.8   UP     1    USED  conf    1      67815     2512      2522     
0    4   28.3.8   UP     1    USED  conf    1      67816     201       202      
0    4   28.3.8   UP     N/A  FREE  conf    1      -         -         -        
0    4   28.3.8   UP     N/A  FREE  conf    1      -         -         -        
0    4   28.3.8   UP     N/A  FREE  conf    1      -         -         -        
0    4   28.3.8   UP     N/A  FREE  conf    1      -         -         -        

Total number of DSPFARM DSP channel(s) 5




VG#show dspfarm dsp active
SLOT DSP VERSION  STATUS CHNL USE   TYPE    RSC_ID BRIDGE_ID PKTS_TXED PKTS_RXED

0    4   28.3.8   UP     1    USED  conf    1      67811     6519      7166     
0    4   28.3.8   UP     1    USED  conf    1      67812     6519      7159     
0    4   28.3.8   UP     1    USED  conf    1      67815     6518      6527     
0    4   28.3.8   UP     1    USED  conf    1      67816     4207      4208     

Total number of DSPFARM DSP channel(s) 1



VG#show dspfarm dsp idle   
SLOT DSP VERSION  STATUS CHNL USE   TYPE    RSC_ID BRIDGE_ID PKTS_TXED PKTS_RXED

0    4   28.3.8   UP     N/A  FREE  conf    1      -         -         -        
0    4   28.3.8   UP     N/A  FREE  conf    1      -         -         -        
0    4   28.3.8   UP     N/A  FREE  conf    1      -         -         -        
0    4   28.3.8   UP     N/A  FREE  conf    1      -         -         -        

Total number of DSPFARM DSP channel(s) 4

[Chris Deren · Accepted solution]

What is the "max add-hoc conference" set to in CUCM service parameters?

Are all participants attempting to join as G711 as that is the only codec you allow on your DSP farm?

[Deepak Rawat]

Refer this:

https://supportforums.cisco.com/discussion/13131246/meetme-conference-incoming-caller-limit

Edit to the O.P. G711 based conferencing is something that you can achieve with software CFB anyways so not sure why you are doing it through hardware based DSP resources. You probably need to allow other codecs such as G729 that you cannot do with software CFB on CM

Regards

Deepak

[silvakizir]

We have 7841, 7911, 7941, 7942, 7961, 7962 devices.

For example when I have a call from 7841 το 7841 the codec used is G.722.

Also when I have a call from 7941 to 7841 the codec used is G.722

@Deepak Rawat you are right. G711 based conferencing is something that you can achieve with software CFB

@Chris Deren  "max add-hoc conference" was the problem and when I put more than 4 participants everything was OK.

I don't need to use DSPs

Thank you guys.