Correct...looking at fig. 7-7 in the cisco press BCRAN book (pg 175) it will
show you that Q.931 is the used as the layer 3 protocol for ISDN D-channel.
-----Original Message-----
From: Jeff McCoy [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, November 14, 2000 12:30 PM
To: [EMAIL PROTECTED]
Subject: Re: BCRAN challenge question for the day
D - layer 3 ... right?
""Sisqo"" <[EMAIL PROTECTED]> wrote in message
8ursff$f0i$[EMAIL PROTECTED]">news:8ursff$f0i$[EMAIL PROTECTED]...
> Q.931
>
> Is it a layer 2 or layer 3?
> Is it B channel or D channel?
>
>
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