AudioCodes Mediant 4000 SBC User Manual page 38

CHAPTER 1 Introduction
Configuration
Terms
Routing Policy
Call
Admission
Control
Accounts
The associations between the configuration entities are summarized in the following figure:
The main configuration entities and their involvement in the call processing is summarized in
following figure. The figure is used only as an example to provide basic understanding of the
configuration terminology. Depending on configuration and network topology, the call process may
include additional stages or a different order of stages.
Routing Policy logically groups routing and manipulation (inbound and
outbound) rules to a specific SRD. It also enables Least Cost Routing (LCR)
for routing rules and associates an LDAP server for LDAP-based routing.
However, as multiple Routing Policies are required only for multi-tenant
deployments, for most deployments only a single Routing Policy is required.
When only a single Routing Policy is required, handling of this configuration
entity is not required as a default Routing Policy is provided, which is
automatically associated with all relevant configuration entities.
Call Admission Control (CAC) lets you configure the maximum number of
permitted concurrent calls (SIP dialogs) per IP Group, SIP Interface, SRD, or
user.
Accounts are used to register or authenticate a "served" SIP entity (e.g., IP
PBX) with a "serving" SIP entity (e.g., a registrar or proxy server). The device
does this on behalf of the "served" IP Group. Authentication (SIP 401) is
typically relevant for INVITE messages forwarded by the device to a
"serving" IP Group. Registration is for REGISTER messages, which are
initiated by the device on behalf of the "serving" SIP entity.
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Mediant 4000 SBC | User's Manual
Description