I'm in trouble when I try to make a conference with an external number (In another cluster) , The conference with internal extensions work perfectly, but when I try to add a third number and it is in another cluster, , the external connection goes down,.
Version : CUCM 8.5
Trunk : InterclusterTrunk
SW conference Bridge -> Only G711
Call can be completed as dialled for intercluster trunk
Another PBX: Cisco Callmanager
Cluster A (Ext: 7098 - 7064 )
Cluster B ( Ext: 5402)
Error : Cause i = 0x80AF - Resources unavailable, unspecified
Thanks for your help!
Hello, Thanks for your answer.
is it necessary ?
I have 2 conference bridge. (not assigned to any resource list )
Conference Bridge Name Device Pool Region
CFB_2 DP_X_CONFERENCIA (MRGL= None) R_Conferencia --> not assigned to any resource list
CFB_3 DP_X_CONFERENCIA (MRGL= None) R_Conferencia --> not assigned to any resource list
Name_ICT (Trunk) Device Pool Region
ICT_X DP_X_Y (MRGL= None) R_X_Y
Phone Device Pool Region
7098 DP_X_Y (MRGL= None) R_X_Y
R_Conferencia vs R_Conferencia = G711
R_Conferencia vs R_X_Y = G711
R_Conferencia vs Default = G711
R_X_Y vs R_X_Y = G711
What codec is used for the ICT call? Sounds like you might be using G729 for that in which case you will need a transcoder engaged in the call via MRGL-MRG assignment to the ICT.
How many CUCM servers do you have? The trace you have sent only contains the cucm interaction with the h323 intercluster trunk. It looks like your phones are registered to another cucm server..Can you send the traces for the server that the phones in the cluster from where you are initiating the conference from.
Also the tarce doesnt look complete. Can you send the whole traces
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"opportunity is a haughty goddess who waste no time with those who are unprepared"
Have you solved this problem, and how?
I have just met a very similar issue as you had, but the cluster A in my environment is a none Cisco SIP server, while cluster B is a CUCM ver. 10.5.2. My problem is if the phone A from cluster A calls a phone B in cluster B and the phone A conference phone C in cluster B. If phone C is setting for BIB recording, calls disconnected with an error code 47, Resource unavailabe, unspecified. If the phone C is a common phone without BIB recording set, the conference established.
P.S. the codec between the 2 clusters is G.729. We have a hardware conference bridge registered in cluster B. But I don't think the conference bridge is required in my case, since it should use the conference resources belong to the sip server in cluster A.
I don't think built in bridge supports G729. Since BIB does not support g729 codec CUCM will invoke a transocder. What happens if you change the region settings to 64 kbps and then try to conference it will work.
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This is incorrect, BIB supports different codecs and will replicate the call to the recording server using the same codec that the call was established as. If the recording server does not support that codec an external xcoder will be invoked as the BIB cannot transcode it itself.