AudioCodes Mediant 500L MSBR

User's Manual 20. Control Network
Version 6.8 287 Mediant 500L MSBR
20.5 Configuring IP Groups
The IP Group table lets you configure up to 50 IP Groups. An IP Group represents a SIP
entity in the network with which the device communicates. This can be a server (e.g., IP
PBX or ITSP) or it can be a group of users (e.g., LAN IP phones). For servers, the IP
Group is typically used to define the server's IP address by associating it with a Proxy Set
(see Configuring Proxy Sets on page 297).
IP Groups can be used for the following:

SBC application: Classification of incoming SIP dialog-initiating requests (e.g., INVITE
messages) to IP Groups based on Proxy Set. If the source address of the incoming
SIP dialog is defined for a Proxy Set, the device assigns ("bonds") the SIP dialog to
the IP Group associated with the Proxy Set. The feature is configured using the IP
Group table's 'Classify by Proxy Set' parameter. For more information and
recommended security guidelines, see the parameter's description, later in this
section.

SBC application: Representing the source and destination of the call in IP-to-IP
Routing rules (see Configuring SBC IP-to-IP Routing Rules on page
564).

SIP dialog registration and authentication (digest user/password) of specific IP Groups
(Served IP Group, e.g., corporate IP-PBX) with other IP Groups (Serving IP Group,
e.g., ITSP). This is configured in the Account table (see ''Configuring Registration
Accounts'' on page
305).

Gateway application: Call routing rules:
• Outgoing IP calls (IP-to-IP or Tel-to-IP): The IP Group identifies the source of the
call and is used as the destination of the outgoing IP call (configured in the
Outbound IP Routing table). For Tel-to-IP calls, the IP Group (Serving IP Group)
can be used as the IP destination to where all SIP dialogs that are initiated from a
Trunk Group are sent (configured in Configuring Trunk Group Settings on page
375).
• Incoming IP calls (IP-to-IP or IP-to-Tel): The IP Group identifies the source of the
IP call.
• The IP Group can be used to associate a number manipulation rule with specific
calls identified by IP Group.