[Asterisk-Users] DNIS and DID seeking confirmation

[jltaylor]

DID number is the number commonly assigned to a PSTN trunk.

DNIS and DID may be the same.  DNIS refers to the "Dialed Number" that is
passed as signaling with the call (or on ss7).  Most calls have ANI and
DNIS.

Your extensions look ok, assuming that the carrier sends the digits that
match.

What Asterisk "looks for" is determined by how you have signaling setup in
your config for the card(s) that you have installed.  So, this must match
the signaling on the carrier side.

James Taylor
MetroTel
3505 Summerhill Road
Suite 11
Texarkana, Tx  75503
903-793-1956


-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com]On Behalf Of John
Millican
Sent: Monday, June 13, 2005 11:02 AM
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] DNIS and DID seeking confirmation


Hello all,
After much googling I have come to the conclusion that in asterisk land
DID(Direct Inward Dial) and DNIS(Dialed Number Identification Service) are
used rather interchangeably. If this is an incorrect assumption Please
correct me.  Based on this assumption if I have everthing set up to land in
the [incoming] context and an 800# such as 1-800-123-4567 with 4 digit DNIS
I
can have an entry in my incoming context  exten => _4567, 1, do something
this is where the call to my 800 number will land regardless of which trunk
the call comes in on. Like wise if I have a DID number 456-7891 with an
exten=> _7891,1,do something else  this will also work.  Is this correct or
am I way off base?
Also what is Asterisk looking for as far as a delimiter or is that in a
config
file?  Something like Seize (Wink) DNIS (Wink) ANI (Wink) Answer  or Seize
(*) DNIS (*) ANI (*) Answer

John M
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