What does meaning this incident

[buraka]

15/08/13 15:01:24 000001M|000/22/-/---|=0:3774=High error ratio Acc=0 S=1 (1:begin,0:end) ; AL:2

[Eliott]

Bad line quality.

[nassiri]

hi,
i have this incident on pabx, i think your media between two pabxs have bad quality.
at some pabx that we have ,this incident there is.
there is another incident there is with 3774, that is 3773 bad frame that it say to you error ratio the line between two nodes.
in the pabx we work with it, there is this incident that media of our network is radio jharden that is a PDH technolegy.
of course i could resolve the problem stopping the synchronization between two nodes.