User's Manual 366 Document #: LTRT-10532
Mediant 500L Gateway & E-SBC
Parameter Description
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_ProxySetNam
e]
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'' on page 378.
Note:
For the Gateway application: IP Group ID 0 cannot be associated with
Proxy Set ID 0.
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.
For the SBC application: Proxy Sets are used for Server-type IP
Groups, but may in certain scenarios also be used for User-type IP
Groups. For example, this is required in deployments where the device
mediates between an IP PBX and a SIP Trunk, and the SIP Trunk
requires SIP registration for each user that requires service. In such a
scenario, the device must register all the users to the SIP Trunk on
behalf of the IP PBX. This is done by using the User Info table where
each user is associated with the source IP Group (i.e., the IP PBX). To
configure the User Info table, see SBC User Information for SBC User
Database on page 812.
For the Gateway application: Proxy Sets are applicable only to Sever-
type IP Groups.
IP Profile
ip-profile-name
[IPGroup_ProfileName]
Assigns an IP Profile to the IP Group.
By default, no value is defined.
To configure IP Profiles, see ''Configuring IP Profiles'' on page 438.
Media Realm
media-realm-name
[IPGroup_MediaRealm]
Assigns a Media Realm to the IP Group. The Media Realm determines the
UDP port range and maximum sessions on a specific interface for media
traffic associated with the IP Group.
By default, no value is defined.
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