IP Phone 7821 + Extension Mobility don´t work

[wilsonsant]

Hi Guys, 

My Customer have a solution with CUCM 9.1(2)SU2. He is configuring Extension Mobility for any models IP Phone, but, only 7821 model didn´t worked. The firmware version is sip78xx.10-1-1SR1-4. I found the bug CSCuj90768, but, not is clear for me if this is the root cause. 

The message error is that appear when the user try login is: session start without sucess

Any have idea about this?

Thanks a lot,

Wilson

[Martin Moran]

Hi @wilsonsant,

A few questions:

• Is EM functioning in other IP Phones inside the CUCM environment?
• Under Settings > Phone Info > Active Load ... Is the phone loading the correct firmware version (sip78xx.10-1-1SR1-4)?
• Is there a "Default Device Profile" for that phone model?
• Is there a "Device Profile"? Is that Device Profile suscribed to the EM service?

Hope to see your answers.

Rgrds,

Martin, IT Specialist

[wilsonsant]

Hi Martin thanks a lot for your contact, 

Answering your questions:

- Is EM functioning in other IP Phones inside the CUCM environment?

Yes, another models work fine

Another questions I believe that is correct, but, I will verify with my Customer and answer for You later

Thanks,

Wilson

[edisson2404]

Hello guys

Is there any solution for this issue?

Thanks

[wilsonsant]

Hi Martin, 

I am sorry by delay, I checked the all parameters and is Ok. I requested my Customer put the last version firmware, but, didn´t worked. 

You have another idea?

Thanks a lot,

Wilson

[edisson2404]

hello Martin Moran

There is some drawback with this problem, I also have many 7821 and when not I have EM, I loss registered in the phone

Thank you