Host not found in UCM 6

Unanswered Question
May 2nd, 2009

Hi group,

I've UCM 6.1 with CCX 7. I am trying to configure IP Phone Agent Service (IPPA) and getting Host not found on the phones where this service has been subscribed. I am in DNS less environment, eternprise parameter and IP Phone service is pointing to the IP Address of Publisher.

I've Extension mobility login and Single buttong logout configured and working perfectly fine.

Not sure why Host not found in IPPA. Any comments how can I debug this issue?

Thanks in advance,


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philjaeger Fri, 10/23/2009 - 12:08

Did you find a resolution for this. I am trying to setup IPPA with ccm7 and uccx7 and running into the same issue.

virverma Sat, 10/24/2009 - 10:54

In your enterprise service parameters,

wherever you see name of call manager,

change it to ip address and restart www services

virverma Sat, 10/24/2009 - 10:59

Yours is a CRS issue,

Agent service URL has CM IP not CRS. Changed to CRS reset device

Kapil Atrish Sun, 10/25/2009 - 23:49

Yes Verma,

That was indeed the issue in my case. I pointed the Service URL to CRS and it worked fine for me.


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