Double Music On Hold

Hello!

I’m calling from my ext.55 to a local conference (ext. 88).

For some reasons I have music on hold started then stopped then started again.
As a result I hear a strange sound for about 1 sec between “you’re the only person…” and the normal music. Any idea why?

    -- Created MeetMe conference 1023 for conference '88'
    -- <SIP/55-0000000e> Playing 'conf-onlyperson.slin' (language 'en')
                                                               
    -- Started music on hold, class 'default', on SIP/55-0000000e                                                                                                                                 
    -- Stopped music on hold on SIP/55-0000000e                                                                                                                                                   
    -- Started music on hold, class 'default', on SIP/55-0000000e