User's Manual
6. Configuring the MediaPack
Version 2.2
89
July 2007
Figure
6-4: MediaPack Clock Synchronized by PBX
Figure
6-5: MediaPack Clock Synchronized by PSTN
Faulty synchronization scenario: The PBX derives the clock from the PSTN. However,
the PBX can't distribute the clock to the MediaPack as the MediaPack's network side
port configuration is unable to receive clock synchronization from the PBX. In such a
scenario, bit slips / bit errors occur on the connection between the PBX and the
MediaPack. Speech transmission may still be possible, but not fax transmission.
To resolve this clock synchronization problem, add a connection between the
MediaPack and the PSTN network. In such a setup, both the PBX and MediaPack
derive their clock synchronization from the PSTN network.
Summary of Contents for MediaPack MP-40 series
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