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New Member

Call fails in a scenario

Hi All,

I have been facing an issue in a specific call scenario involving 7960 phones. The call scenario being as follows:

1)      Phone A, B and C are in same CSS.

2)      Phone A and B in same partition, while Phone C is in Null partition.

3)      Calls to Phone C from Phone A and B happens, but vice versa fails.

     This happens only when Phone C is 7960, otherwise it works well.

Let me know how this can be resolved. The UCM being used is 4.3(2)ES 21 and the phone load on phone 7960 is P00308010200

Thanks,

Nihar

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3 REPLIES
Cisco Employee

Re: Call fails in a scenario

Exactly how are you testing this???

Do the test phones have the same CSS at device and line level?

HTH

java

If this helps, please rate

www.cisco.com/go/pdihelpdesk

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
New Member

Re: Call fails in a scenario

Yes they are in same CSS.

Cisco Employee

Re: Call fails in a scenario

Then most probably you would need to look at a CUCM trace to determine the root cause, if it's CUCM routing gone bad or if it's really something on the phone.

Phones are basically dumb, they work on stimulus-response way so CUCM is the one that takes care of routing, i don't believe this is related to the phone model. It's probably a phone config issue.

HTH

java

If this helps, please rate

www.cisco.com/go/pdihelpdesk

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
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