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Chapter 6. Frame Relay Configuration Examples
EXAMPLE 5:
Step 1
Step 2
6-10
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
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.
Packet voice transmission requires the Voice Compression Module.
Atlanta
PLUS
ATLAS 800
Router
PBX
Figure 6-24. Private Frame Relay Network Using Compressed Voice
From P
M
ACKET
ANAGER
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
From P
M
ACKET
ANAGER
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).
ATLAS Frame Relay User Manual
Private
Frame Relay
Network
/P
E
/C
ACKET
NDPNTS
ONFIG
/P
E
/C
ACKET
NDPOINTS
ONFIG
PLUS
Boston
PLUS
ATLAS 800
Router
PBX
, create the packet end-
/S
, configure
UBLINKS
61200263L1-1.1
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