[HELP] Don't know what to do with control frame 15 (TE410P)

I use * manager API to originate a call, and randomly receive the following
notice and the call doesn’t go through:

[quote] – Attempting call on Zap/g1/7382991 for s@popugaj:1 (Retry 1)
– Requested transfer capability: 0x00 - SPEECH
Jun 29 12:28:34 NOTICE[17060]: channel.c:2424 __ast_request_and_dial: Don’t know what to do with control frame 15
Jun 29 12:28:34 NOTICE[17060]: channel.c:2424 __ast_request_and_dial: Don’t know what to do with control frame 15
== Parsing ‘/etc/asterisk/manager.conf’: Found
– Channel 0/1, span 1 got hangup request
– Requested transfer capability: 0x00 - SPEECH
– Hungup ‘Zap/1-1’[/quote]

The same thing happens with call-files. Does anybody know how to fix it?