Core Issue
A user is already logged into the Cisco IP Phone.Resolution
To resolve this issue, perform these steps:- From Cisco CallManager, select Device > Phone.
- Find the phone by the Directory Number (DN) it currently has and click the logout button.
For more information about resolving Extension Mobility, refer to these documents:
Problem Type
Call control software (CallManager, CallManager Express, ICS7750, SRST, SS7 call agents)Call Control
CallManagerCallManager Features
Extension mobility and servicesFailure Type
Error message
Cannot login or logout
When Problem Occurs
After entering username and passwordEnd Where Problem is Heard or Device Type Involved
IP phoneIP Phone Errors
Request Denied: Phone currently has user logged inCustomer Response Solution (CRS) Applications
CallManager extended services