AudioCodes E-SBC User Manual

CHAPTER18 Core Entities
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
[IPGroup_TopologyLocation] ■ [0] Down = (Default) The IP Group element is
displayed on the lower border of the view.
■ [1] Up = The IP Group element is displayed on the
upper border of the view.
For more information on the Topology view, see Building
and Viewing SIP Entities in Topology View.
'Type'
type
[IPGroup_Type]
Defines the type of IP Group.
■ [0] Server = Applicable when the destination
address of the IP Group (e.g., ITSP, Proxy, IP-PBX,
or Application server) is known. The address is
configured by the Proxy Set that is associated with
the IP Group.
■ [1] User = Represents a group of users such as IP
phones and softphones where their location is
dynamically obtained by the device when
REGISTER requests and responses traverse (or are
terminated) by the device. These users are
considered remote (far-end).
Typically, this IP Group is configured with a Serving
IP Group that represents an IP-PBX, Application or
Proxy server that serves this User-type IP Group.
Each SIP request sent by a user of this IP Group is
proxied to the Serving IP Group. For registrations,
the device updates its registration database with the
AOR and contacts of the users.
Digest authentication using SIP 401/407 responses
(if needed) is performed by the Serving IP Group.
The device forwards these responses directly to the
SIP users.
To route a call to a registered user, a rule must be
configured in the Tel-to-IP Routing table or SBC IP-
to-IP Routing table. The device searches the
dynamic database (by using the Request-URI) for an
entry that matches a registered AOR or Contact.
Once an entry is found, the IP destination is obtained
from this entry and a SIP request is sent to the des-
tination.
The device also supports NAT traversal for the SIP
clients located behind NAT. In this case, the device
must be defined with a global IP address.
■ [2] Gateway = (Applicable only to the SBC
application) In scenarios where the device receives
requests to and from a gateway representing multiple
users. This IP Group type is necessary for any of the
following scenarios:
✔ The IP Group cannot be defined as a Server-
type since its address is initially unknown and
therefore, a Proxy Set cannot be configured for
it.
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AudioCodes E-SBC Specifications

General

Brand	AudioCodes
Model	E-SBC
Category	Gateway
Language	English