AudioCodes Mediant 4000 SBC, User Manual

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CHAPTER 18 Core Entities
Mediant 4000 SBC | User's Manual
Parameter Description
■ [2] Gateway = 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.
✔
The IP Group cannot be defined as a User-type
since the SIP Contact header of the incoming
REGISTER does not represent a specific user.
The Request-URI user part can change and
therefore, the device is unable to identify an
already registered user and therefore, adds an
additional record to the database.
The IP address of the Gateway-type IP Group is
obtained dynamically from the host part of the
Contact header in the REGISTER request received
from the IP Group. Therefore, routing to this IP Group
is possible only once a REGISTER request is
received (i.e., IP Group is registered with the
device). If a REGISTER refresh request arrives, the
device updates the new location (i.e., IP address) of
the IP Group. If the REGISTER fails, no update is
performed. If an UN-REGISTER request arrives, the
IP address associated with the IP Group is deleted
and therefore, no routing to the IP Group is done.
You can view the registration status of the Gateway-
type IP Group in the 'GW Group Registered Status'
field, and view the IP address of the IP Group in the
'GW Group Registered IP Address' field if it is
registered with the device.
'Proxy Set'
proxy-set-name
[IPGroup_ProxySetName]
Assigns a Proxy Set to the IP Group. All INVITE
messages destined to the IP Group are sent to the IP
address configured for the Proxy Set.
To configure Proxy Sets, see Configuring Proxy Sets .
Note:
■ The Proxy Set must be associated with the same
SRD as that assigned to the IP Group.
■ You can assign the same Proxy Set to multiple IP
Groups.
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