AudioCodes Mediant 3000 User Manual page 281

SIP User's Manual
Parameter
Serving IP Group ID
[TrunkGroupSettings_Serving
IPGroup]
Gateway Name
[TrunkGroupSettings_Gatewa
yName]
Contact User
[TrunkGroupSettings_Contac
tUser]
Version 6.4
according to the settings in the Account table (see 'Configuring
Account Table' on page 241).
Notes:

To enable Trunk Group registrations, configure the global
parameter IsRegisterNeeded to 1. This is unnecessary for 'Per
Account' registration mode.

If no mode is selected, the registration is performed according to
the global registration parameter ChannelSelectMode.

If the device is configured globally (ChannelSelectMode) to
register Per Endpoint, and channels group comprising four
channels is configured to register Per Gateway, the device
registers all channels except the first four channels. The
channels Group of these four channels sends a single
registration request.
The Serving IP Group ID to where INVITE messages initiated by
this Trunk Group's endpoints are sent. The actual destination to
where these INVITE messages are sent is according to the Proxy
Set ID (see 'Configuring Proxy Sets Table' on page 215)
associated with this Serving IP Group. The Request-URI host
name in the INVITE and REGISTER messages (except for 'Per
Account' registration modes) is set to the value of the field 'SIP
Group Name' defined in the IP Group table (see 'Configuring IP
Groups' on page 208).
If no Serving IP Group ID is selected, the INVITE messages are
sent to the default Proxy or according to the Outbound IP Routing
Table (see 'Configuring Outbound IP Routing Table' on page 298).
Note: If the parameter PreferRouteTable is set to 1 (see
'Configuring Proxy and Registration Parameters' on page 244), the
routing rules in the Outbound IP Routing Table prevail over the
selected Serving IP Group ID.
The host name used in the SIP From header in INVITE messages,
and as a host name in From/To headers in REGISTER requests. If
not configured, the global parameter SIPGatewayName is used
instead.
The user part in the SIP Contact URI in INVITE messages, and as
a user part in From, To, and Contact headers in REGISTER
requests. This is applicable only if the field 'Registration Mode' is
set to 'Per Account', and the Registration through the Account table
is successful.
Notes:

If registration fails, then the user part in the INVITE Contact
header contains the source party number.

The Contact User' parameter in the 'Account Table page
overrides this parameter.
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18. GW and IP to IP
Description
November 2011