To Configure The Srg50 For Nbwm And Adbwm; Alternative Call Routing (Acr); Configuring The Srg50 For Bandwidth Management: Nbwm, Adbwm, And Acr - Nortel SRG50 Configuration Manual

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Configuration manual (102 pages)

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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

NBWM, ADBWM, and ACR" on page

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