Here is a good definition of <a
href=”http://www.webopedia.com/TERM/D/DID.html”>DID</a> while
here is the <a
href=”http://www.webopedia.com/TERM/P/PBX.html”>PBX</a> They are
completely different things. PBX is a system while DID is a
service. ———————————— PBX is the company’s private phone system.
DID is a phone number which can be associated to your PBX. You
can use DID numbers as direct [...] View Answer | April 24, 2009
10:57 PM This may also be related to roaming, but here’s where
you can find out more. ————— It seems that you already know what
CDR means, because you tagged your question with ‘Call Detail
Record’. What exactly do you need to know? Actually CDR stands
for Call Detail Record, and it is a record containing
information [...] View Answer | May 16, 2013 2:02 PM Call Detail
Record, CDR This is <a
href=”http://en.wikipedia.org/wiki/Carrier_preselect”>defined in
Wikipedia</a> anyway in some PBX you may have e.g. 5 lines and
each of these are with different providers (Example provider1 is
good for