[j-nsp] Juniper P-4CHDS3 vs P-4CHDS3-QPP

[mruffini at conversent.com]

I am looking to use some Juniper P-4CHDS3 for an M20 and wanted to find out
if there are any limitations or hardware issues with this version.  Juniper
has replaced this card with the new P-4CHDS3-QPP, but aside from being able
to use clear channel circuits and some enhanced QoS functionality, it's not
clear what the advantages are. 

Thanks in advance.

Mike