UCMA: MCU AudioAndVideo Dialout over B2B failed on Lync 2013 Client, works with Lync 2010 Client

Hi,
We create in our application (Lync 2013, latest UCMA) a mcu AudioAndVideo dialout, hang the incoming call into a b2b and try to reach a lync client.
The Lync 2013 client receives the SIP INVITE, but in the end, we get the response:

- ResponseCode=488 ResponseText=Not Acceptable Here DiagnosticInformation=ErrorCode=52001,Source=,Reason=Client side general processing error.

On the client we have the following Logoutput:

ERROR :: Failed to get Hid device display property 0x80ee0058!!    
ERROR :: CUccHistoryInfoEntry::Initialize: HRESULT failed: 80ee0058 = m_hrReasonParsingResult. InitializeStatusMembers
INFO :: CUccIncomingInviteOperation block on media allocation (begin)
INFO :: Setting TtyEnabled to FALSE
INFO :: Now populating media parameters of removed channels.
INFO :: Trxn corr-id (0000000015E680E0), SIP msg corr-id (ad86df2d)
INFO :: Sending Packet - 172.16.10.20:5061 (From Local Address: 172.16.253.114:10694) 1004 bytes:

This scenario works if the client is a 2010 client and with audio only calls to both clients. Is there any possibility to adjust the codecs or other releated parameters?

Thank you and regards,