05-13-2008 11:31 AM - edited 03-15-2019 10:38 AM
I am looking for assistance or pointed in the right direction of setting up conference calling in CUCM 6.1, with 2811 running in SRST mode.
I have a remote site registering to 6.1, with a local ISR running in SRST mode. I do not want to set up a media resource unless I need to.
Here is what is happening.
I call outside line to remote location.
Call is answered.
Called party presses Confr softkey, places call.
New Called party answers, confrn softkey pressed again, call is dropped and I hear fastbusy, however the call between the two stays up.
It sounds like a Codec issue but not sure what to look at.
05-13-2008 11:42 AM
Probably Codec. If you are using the CCM for Conferencing, you have to be talking G.711 to your Media Resources. If you are G.729 you need a Transcoder and the central site.
05-13-2008 11:53 AM
As of right now no media resource group has been built.
Is this something that can be a default setting? We need to make sure that this can be used at 75 sites that connect into the CUCM. We have built different regions and locations, device pools, etc... to keep them separate in their build but together in the same cluster.
If I go into the Conference Bridge Media Resource group I have CFB_2 and CFB_3
they are in the default device pool. do I need to put these in something else? Or is there something else I need to build?
Codec within regions is G711 and between regions is 729, and on the router is the transcoder config, prefer 711 if call cannot terminate 711 then use 729.
05-13-2008 12:35 PM
I believe I know the issue:
RET902R001#sh dspfarm dsp all
SLOT DSP VERSION STATUS CHNL USE TYPE RSC_ID BRIDGE_ID PKTS_TXED PKTS_RXED
0 2 9.4.4 UP N/A FREE xcode 1 - - -
0 3 9.4.4 UP N/A FREE xcode 1 - - -
0 3 9.4.4 UP N/A FREE xcode 1 - - -
0 3 9.4.4 UP N/A FREE xcode 1 - - -
Total number of DSPFARM DSP channel(s) 4
and all 4 DSP's are being used for transcoding:
RET902R001#sh dspfarm all
Dspfarm Profile Configuration
Profile ID = 10, Service = TRANSCODING, Resource ID = 1
Profile Description :
Profile Admin State : UP
Profile Operation State : ACTIVE
Application : SCCP Status : ASSOCIATED
Resource Provider : FLEX_DSPRM Status : UP
Number of Resource Configured : 4
Number of Resource Available : 4
Codec Configuration
Codec : g711ulaw, Maximum Packetization Period : 30
Codec : g711alaw, Maximum Packetization Period : 30
Codec : g729ar8, Maximum Packetization Period : 60
Codec : g729abr8, Maximum Packetization Period : 60
Codec : g729r8, Maximum Packetization Period : 60
Codec : g729br8, Maximum Packetization Period : 60
Dspfarm Profile Configuration
Appears I need more DSP's, is this correct? or is there another way to set this up?
05-13-2008 12:47 PM
you need a WHOLE DSP for conferencing, you cannot use any channel for other usage.
if you're already using all the DSPs you do need to add more resources, even if you're using only 1 channel that is not the whole DSP and won't let you configure it for CFB
HTH
javalenc
if this helps, please rate
05-14-2008 11:03 AM
is there a guide to configure this on CUCM 6.1 as a media resource, and have it set up for each site not just a global setting?
I will need to set this up in different regions, is this possible?
Anyone have links where I can read about the set-up?
05-14-2008 11:29 AM
Found what I needed.
Here is a great link!
http://www.cisco.com/en/US/products/sw/voicesw/ps556/prod_maintenance_guides_list.html
HTH someone else!
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