01-24-2017 08:14 AM - edited 03-17-2019 09:17 AM
Hi all
I have an issue on an IOS CFB where it only allows 4 participants in a conference ,when you try and dial the 5th participant into the conference it just gives a fastbusy tone. When checking on the router i can see there are DSP slots available
sh dspfarm dsp all
SLOT DSP VERSION STATUS CHNL USE TYPE RSC_ID BRIDGE_ID PKTS_TXED PKTS_RXED
0 1 37.2.0 UP N/A FREE xcode 1 - - -
0 1 37.2.0 UP N/A FREE xcode 1 - - -
0 1 37.2.0 UP N/A FREE xcode 1 - - -
0 1 37.2.0 UP N/A FREE xcode 1 - - -
0 1 37.2.0 UP N/A FREE xcode 1 - - -
0 1 37.2.0 UP N/A FREE conf 2 - - -
0 1 37.2.0 UP N/A FREE conf 2 - - -
0 1 37.2.0 UP N/A FREE conf 2 - - -
0 2 37.2.0 UP 1 USED conf 2 8917360 12756 12755
0 2 37.2.0 UP 1 USED conf 2 8917361 12753 12753
0 2 37.2.0 UP 1 USED conf 2 8917455 11162 11143
0 2 37.2.0 UP 1 USED conf 2 8917456 1202 1193
0 2 37.2.0 UP N/A FREE conf 2 - - -
0 2 37.2.0 UP N/A FREE conf 2 - - -
0 2 37.2.0 UP N/A FREE conf 2 - - -
0 2 37.2.0 UP N/A FREE conf 2 - - -
Total number of DSPFARM DSP channel(s) 13
Any ideas ?
01-24-2017 09:10 AM
I'll assume this is working with CUCM, what are the CFB related parameters set to??
The default is 4 participants.
01-24-2017 08:37 PM
Hi Guys
Thanks for the replies ,the service param in CUCM is set to 8. Here is the relevant GW config :
sccp local GigabitEthernet0/1.1121
sccp ccm 172.21.253.54 identifier 2 version 6.0
sccp ccm 172.21.253.55 identifier 1 version 6.0
sccp ccm 172.21.253.41 identifier 7 version 7.0
sccp
sccp ccm group 1
bind interface Loopback0
associate ccm 1 priority 1
associate ccm 2 priority 2
associate profile 1 register g711u_vpn1_mtb
associate profile 2 register g711a_vpn1_mtb
associate profile 3 register g729_vpn1_mtb
associate profile 4 register xcode_vpn1_mtb
associate profile 5 register conf_vpn1_mtb
switchover method immediate
switchback method immediate
dspfarm profile 5 conference
codec g729br8
codec g729r8
codec g729abr8
codec g729ar8
codec g711alaw
codec g711ulaw
maximum sessions 8
associate application SCCP
So according to the default on the dspfarm and what is set in CUCM service param i should be able to have 8 participants in a conference ,i have checked the CUCM traces but was unable to pick up anything significant from there ,also did a debug sccp errors on GW ,but did not pick up anything obvious there either.
01-24-2017 11:49 AM
Post full GW config and as Jamie suggested check value of "Maximum Ad Hoc Conference" service parameter which defaults to 4, and would explain your issue. You can change it there to desired limit, that matches your participant limit on dspfarm profile (default is 8).
01-24-2017 10:33 PM
Hi,
Can you please share the output of 'show dspf pro 5' and 'sh sccp'
During active conference, can you share the output of 'sh voice dsp capabilities slot x' and 'sh voice dsp group all'.
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