On Feb 16, 2005, at 3:07 PM, Eric Wieling wrote:

I have the following configuration:

CLEC -> T-1 -> Asterisk -> Adtran Channel Bank -> (analog) -> Nortel

Don't complain that it's ugly.  I've already done plenty of that.

The CLEC manages their Adtran remotely and needs to be able to continue to do so. I assume they use FDL to do the management. We are using the Zaptel DACS/DACSRBS to cross connect some of the channels directly between the CLEC and the Adtran. These are channels we don't really care about (data, other voice, etc). We are not cross connecting all the channels, just some of them.

I'm wondering if/how I can make sure the remote management via FDL continues to work. Does anyone have any information on this or suggestions or anything?

What you dropped from your diagram is the T1 from * to the channel bank. FDL is a link level protocol. It is carried in the framing bits of the T1 not within the payload bits. When you use the digium (I presume) card within your * server as a DACS this is connecting the payload, ie timeslot, bits from one port to another. FDL will not work this way.


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