Chapter 3 CS 1000 considerations
39
Survivable Remote Gateway 50 Configuration Guide
being used between its own zone and zones belonging to other call servers. If the interzone QoS
degrades below an acceptable level, the available bandwidth is reduced automatically between the
two zones. When the QoS between the two zones improves, the bandwidth limit is allowed to
return to normal.
Alternative Call Routing (ACR)
Configuration for Alternative Call Routing (ACR) at the SRG50 includes datafilling the Virtual
Private Network ID (VPNI) and Zone ID required by NBWM and ADBWM. However, additional
configuration is required and depends on the type of trunking provisioned at the main office:
Attendant service or DID trunks (refer to
“Configuring the SRG50 for Bandwidth Management:
NBWM, ADBWM, and ACR” on page 39
).
ACR for NBWM allows a station-to-station call (that is, a call that does not use a trunk) to
overflow to traditional routes. Overflow can occur if there is insufficient interzone bandwidth
available to carry the call, or if the QoS has degraded to unacceptable levels. The feature applies to
station-to-station calls between a branch office and main office as well as from one branch office
to another branch office, provided both stations are registered to the same main office.
Network administrators who do not want calls to be blocked, yet have a limited amount of
bandwidth available, can use ACR to overflow calls to conventional trunks (PSTN or Tie/MCDN).
ACR allows calls to be routed by overflowing them, trading off the capital cost of WAN
bandwidth against the incremental cost of overflowed calls.
Configuring the SRG50 for Bandwidth Management: NBWM,
ADBWM, and ACR
To configure the SRG50 for NBWM and ADBWM
1
Obtain the Virtual Private Network ID and the Zone ID numbers configured at the main office.
2
Use the SRG50 Element Manager to enter these numbers in the appropriate fields at
Configuration > Telephony > Dialing Plan > Private Network > Dialing Plan - Private
Network
panel
> VoIP
subpanel
(Figure 4)
.
Summary of Contents for SRG50
Page 1: ...Part No N0060720 03 December 2007 Survivable Remote Gateway 50 Configuration Guide...
Page 4: ...4 Task List N0060720 N0060720 Glossary 107 Index 109...
Page 8: ...8 Contents N0060720...
Page 26: ...26 Chapter 1 Getting started N0060720 N0060720...
Page 50: ...50 Chapter 3 CS 1000 considerations N0060720 N0060720 Figure 6 S1000 IP Terminal Details panel...
Page 62: ...62 Chapter 4 CS 2000 considerations N0060720 N0060720...
Page 100: ...100 Chapter 8 Troubleshooting N0060720...
Page 106: ...106 Telephone features in normal and local mode N0060720...
