|Voice||Female, with Polish accent|
|Known counterpart stations||S11b, M03c, F11|
E11b refers to E11 messages sent in years 2003-2009, with group counts in the 30's, which began and ended with "77777 77777." Such messages were sent on a randomly chosen week once a month. These groups were dropped in March 2009, but the once a month message procedure was retained.