We are using PGW 2200 & MGW AS5400 for TDM termination from VOIP, I often observed on MGW many E1 channels in ei8ther blocked states or proposed state.i have following question in regards to this
1. If E1 channels or ISDN channels in blocked or proposed state where is the issue
2. how we can rectify it & what we can fo avodi such state permanant basis
3 is there any relation between this 2 channel state and connectivity of PGW <--->MGW<-->PSTN operator g/w, any of this connectivity fluctuate can affect E1 channel state & then its blocked or porposed state.
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