cisco conference bridge software registration unknown

Unanswered Question
Jun 18th, 2009

hi, i cannot make a conference with softphones in a callmanager 7.

the conference bridge software is on state :

registration: unknown

ip adress: unknown

what can i do ?

I have this problem too.
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Overall Rating: 5 (2 ratings)
Dennis Mink Fri, 06/19/2009 - 06:12

are you using Conference bridge on Call Manager itself or are you doing DSPfarming?

Jaime Valencia Fri, 06/19/2009 - 07:00

I would say do a restart of IPVMS if SW CFB, or do a no sccp/sccp if HW CFB



if this helps, please rate

Greg Lowe Thu, 11/26/2009 - 17:28

Hey Java,

I'm having this same problem but with a 6.x Call Manager. Can the IPVMS service be restarted during business hours? Will this affect any active calls?


plafond12 Thu, 08/16/2012 - 07:01

Hi Java,

I'm having a similar issue, but not exactly the same.

I'm using CUCM 8.6.2

I have 1 pub and 2 subs.

IPVMS is running on all 3 of them. All 3 of my SW CFBs  are registered (eventhough if i click on each of them, it says device is not trusted).

When i try to initiate a simple ad hoc conference with 3 users, when connecting the 3rd user, i get an immediate fast busy and the conference fails.

I tried restarting IPVMS with no luck.

Do you think the "device is not trusted" state might be an issue?

plafond12 Thu, 08/16/2012 - 07:17

Created one with subject:

Issues initiating a conference using SW CFBs.

Greg Lowe Sun, 11/29/2009 - 15:03

I’ve undertaken the restart of the Cisco IP Voice Media Streaming App service and have noted that both conference bridges now appear to be registered and active.

We’ve completed testing and the interference seems to have gone away.

Thanks for the help Java!

danielgarzon Wed, 12/05/2012 - 06:16


I have the same problem. I restarted Cisco IP Voice Media Streaming App service but the result is the same, not registered.

What Can i do more?



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