16 Control Network
This section describes configuration of the network at the SIP control level.
16.1 Configuring IP Groups
The IP Group Table page allows you to create up to nine logical IP entities called IP
Groups. An IP Group is an entity with a set of definitions such as a Proxy Set ID (see
'Configuring Proxy Sets Table' on page 176), which represents the IP address of the IP
Group.
IP Groups are used for the following:
SIP dialog registration and authentication (digest user/password) of a specific IP
Group (Served IP Group, e.g., corporate IP-PBX) with another IP Group (Serving IP
Group, e.g., ITSP). This is configured in the Account table (see Configuring Account
Table on page 181).
Call routing rules:
• Outgoing IP calls (Tel-to-IP): The IP Group identifies the source of the call and is
used as the destination of the outgoing IP call (defined in the Tel to IP Routing).
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 Hunt Group are sent
(defined in Configuring Hunt Group Settings on page 204).
• Incoming IP calls (IP-to-Tel): The IP Group identifies the source of the IP call.
• Number Manipulation rules to IP: The IP Group is used to associate the rule with
specific calls identified by IP Group.
Notes:
• IP Group ID 0 cannot be used. This IP Group is set to default values and
is used by the device when IP Groups are not implemented.
• When operating with multiple IP Groups, the default Proxy server must
not be used (i.e., the parameter IsProxyUsed must be set to 0).
• You can also configure the IP Groups table using the table ini file
parameter, IPGroup (see 'Configuration Parameters Reference' on page
461).
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