This is how I remeber.
Q.921 is layer 2, because it has a 2.
Q.931 is layer 3, because it has a 3.
This is how one of the books I remember reading said. PEACE
Raheem
>From: "Sisqo" <[EMAIL PROTECTED]>
>Reply-To: "Sisqo" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: BCRAN challenge question for the day
>Date: Tue, 14 Nov 2000 09:19:14 -0800
>
>Q.931
>
>Is it a layer 2 or layer 3?
>Is it B channel or D channel?
>
>
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