61202800L1-1B
IQ 710
Section 6, Configuration Guides
Page 273
© 2002 ADTRAN, Inc.
IQ 710 System Manual
Again, for this example only, the dial back-up will only originate from the Huntsville site (in order to dem-
onstrate the call order parameter). In a normal circuit, the parameters programmed for the Montgomery unit
in this example in conjunction with enabling the DBU criteria and DBU on Inactive would be all the pro-
gramming required for normal dial backup from Montgomery.
Mobile IQ 710 (DLCI 700)
1.
Use the right arrow to select
DLCI
; then press
<Enter>
. Type in 700 and press
<Enter>
.
2.
Use the right arrow to select
DBU DLCI
; then press
<Enter>
. Type in 800 and press
<Enter>
.
Notice that the TELCO-assigned DLCI of 700 for Mobile's Frame Relay link to Huntsville is pro-
grammed in the DLCI field. The TELCO-assigned DLCI of 800 for Huntsville's Frame Relay link
to Mobile is programmed in the
DBU DLCI
field. These two entries are critical for proper dial
backup operation.
3.
Use the right arrow to select
DBU P
HONE
N
UMBER
; then press
<Enter>
. Type in 12565551000 and
press
<Enter>
. The phone number that the Mobile IQ 710 will dial to reach the Huntsville
IQ 710 to establish a dial backup connection has now been programmed.
4.
Use the right arrow to select
C
ALL
O
RDER
N
UMBER
.
DBU C
ALL
O
RDER
allows each DLCI listed in
the table to be prioritized in the event that multiple PVCs are lost at once. Dial backup will first be
attempted on the PVC with the lowest Call Order that meets the DBU Criteria settings. Leave this
parameter at the default value of none.
The
DBU O
N
I
NACTIVE
parameter is disabled by default. For this example, leave it disabled in order
to assure the
G
ROUP
parameter on the host unit will initiate dial backup.
At this point all PVC options have been configured for basic Frame Relay dial backup from Mobile to
Huntsville. The PVC entries on the Mobile IQ 710 should look like the screen shown in Figure 31. The
remaining options may be left at their default values. The
CIR
,
S
EQUENCE
N
UMBER
C
HECKING
,
D
ELAY
M
EA
-
SUREMENT
, and
S
TATS
options are features not related to dial backup. For an explanation of these features,
please refer to the IQ 710 User Manual.