ADTRAN ATLAS, User Manual

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Chapter 6. Frame Relay Configuration Examples
6-10 ATLAS Frame Relay User Manual 61200263L1-1.1
EXAMPLE 5: PRIVATE FRAME RELAY NETWORK—PACKET
VOICE
Example 5 (see Figure 6-24) shows a private frame relay network using
compressed voice in a private frame relay network. An ATLAS 800
PLUS
with the frame relay upgrade is located at each site and a PBX is connected
to the ATLAS using a clear-channel T1 connection. Each PBX uses DS0s 1—
23 for voice and DS0 24 for signaling; all calls are to be completely managed
by the PBXs. In this network, ATLAS does not terminate the signaling
information, but forwards the signaling between endpoints using a
transparent bit oriented protocol (TBOP) frame relay connection. To re-
create this example, follow the process discussed below.
Figure 6-24. Private Frame Relay Network Using Compressed Voice
Step 1
From
P
ACKET
M
ANAGER
/P
ACKET
E
NDPNTS
/C
ONFIG
, create the packet end-
points: create a frame relay endpoint for the private frame relay link, and
create a TBOP link to carry the signaling between the PBXs (see Figure 6-25).
Figure 6-25. Menu for Creating Packet Endpoints
Step 2 From P
ACKET
M
ANAGER
/P
ACKET
E
NDPOINTS
/C
ONFIG
/S
UBLINKS
, configure
the sublinks.
All 23 voice channels can be carried by one DLCI transported on five DS0
channels. One DS0 and one DLCI are required for the TBOP channel carry-
ing the signaling between the PBXs. To ensure that both the voice and the
TBOP DLCIs are allocated their necessary frame relay bandwidth, set the
Quality-Of-Service (
QOS ) parameter with 64K allocated to the TBOP chan-
nel and 320K (5*64) allocated to the voice channels (see Figure 6-26).
Packet voice transmission requires the Voice Compression Module.
Router
PBX
Atlanta
Router
PBX
Boston
Private
Frame Relay
Network
ATLAS 800
PLUS
ATLAS 800
PLUS