Extension Mobility on cucm 10.5

[sylvain2006]

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Dears!!

can you help me ? a error occure when i press button EM

Please try to login again (2)

Login Unsuccessful

What does it mean? and why can resolve this error?

But we notice that this error occure 1/3 trying

[Mohammed al Baqari]

Have you enabled extension mobility tickbox on the phone

[sylvain2006 · Accepted solution]

Hi Mohammed
Have you enabled extension mobility tickbox on the phone : yes
You can notice that solution works once every three.
So it is random