Nortel Networks NN43001-318 - Manual (Page 100)

100 Testing ISDN BRI functions
Packet data transmission
A packet data call can be established between two data terminals over a
B-channel or a D-channel.
B-channel packet data terminals communicate with the packet handler at 64
kbps over dedicated B-channels. The packet handler may be an external
packet handler, the DPN-100, or the integrated MPH. The packet handlers
processes and distributes the data to local terminals for local calls or over
the packet data network for remote calls.
D-channel packet data terminals communicate at a baud rate of up to 9.6
kbps. The packet data is multiplexed onto a 64 kbps BD that is linked with
the external packet handler through a dedicated ISDN PRI B-channel, or, in
the case of the MPH, through a dedicated connection.
Note: To perform packet data transmission verification, the system
must be connected to a DPN-100, or configured with MPH. Also, packet
data transmission functions must be selected when configuring the
B-channel and D-channel transmission characteristics. Use LD 27 to
specify the packet data transmission functions. See "MISP configuration
procedures" in ISDN Basic Rate Interface Feature Fundamentals
(NN43001-580).
In addition to configuring the MISP and the DSL in LD 27, ensure the
following:
• the ISDN PRI loop carrying packet data was configured in LD 17
• the packet handler route was specified in LD 16
• an ISDN PRI channel for the packet handler route was configured using
LD 14
See ISDN Basic Rate Interface Feature Fundamentals (NN43001-580) for
a detailed description of how to configure relevant ISDN BRI packet data
transmission parameters in LD 17, LD 16, and LD 14.
Procedure 37
Perform a B-channel packet data transmission test using an external packet
handler
Step Action
1 From an ISDN BRI B-channel packet data terminal, dial another
local or a remote ISDN BRI packet data terminal and establish an
active call connection.
After the call-originating ISDN BRI terminal receives an
Nortel Communication Server 1000
ISDN Basic Rate Interface Installation and Commissioning
NN43001-318 01.02 Standard
Release 5.0 20 June 2007
Copyright © 2003-2007, Nortel Networks
.