This is the outgoing callerid. If you have 1200 DIDs in a range, you probably 
only need to outpulse 4 digits (they already know the first six). If you want 
to be able to make your callerid anything that may or may not be one of your 
DIDs, you probably want 7 or 10. I pick 10 no matter what for the flexibility.

-Dave

-----Original Message-----
From: asterisk-users-boun...@lists.digium.com 
[mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Dave Fullerton
Sent: Friday, March 27, 2009 10:06 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] AT&T PRI Install - What is outpulsed?

Hey All,

AT&T is installing a PRI in a couple weeks and while I've been doing
homework on PRI's for the last few weeks there's something I'm still
confused about. After being asked how many digits I wanted them to send
us (10) was how many digits will you outpulse to us, 4, 7 or 10? I asked
her what that meant and all I got was the question repeated. Do any of
you have any idea what she was referring to? Is this ANI? Outgoing
Caller ID? Something else?

While I've done many POTS line setups, this is my first PRI install, so
I'd also welcome any "make sure you do this", "read this first" or "AT&T
always messes this up so..." tips.

Thanks

-Dave

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