AudioCodes Mediant 800 - Page 486

CHAPTER19 Coders and Profiles
Mediant 800 Gateway & E-SBC | User's Manual
Parameter Description
■ [2] Handle Locally = The device handles SIP 3xx
responses on behalf of the dialog-initiating UA and
retries the request (e.g., INVITE) using one or more
alternative URIs included in the 3xx response. The
device sends the new request to the alternative
destination according to the IP-to-IP Routing table (the
'Call Trigger' field must be set to 3xx).
■ [3] IP Group Name = If the 'SIP Group Name'
parameter of the IP Group of the dialog-initiating UA is
configured with a non-empty value, the device changes
the host part of the Contact header in the 3xx response
to this value, before forwarding the 3xx response to the
dialog-initiating UA.
■ [4] Local Host = The device changes the host part of
the Contact header in the 3xx response before
forwarding the 3xx response to the dialog-initiating UA.
If the 'Local Host Name' parameter of the IP Group of
the dialog-initiating UA is configured with a non-empty
value, the device changes the host part of the Contact
header to this value. If the 'Local Host Name' is empty,
the device changes the host part to the device's IP
address (the same IP address used in the SIP Via and
Contact headers of messages sent to the IP Group).
Note:
■ When the parameter is changed from Database URL to
Transparent, new 3xx Contact headers remain
unchanged. However, requests with the special prefix
continue using the device's database to locate the new
destination.
■ Optional values IP Group Name and Local Host are
applicable only to 3xx responses received due to
INVITE messages.
■ Only one database entry is supported for the same
host, port, and transport combination. For example, the
following URLs cannot be distinguished by the device:
✔ sip:10.10.10.10:5060;transport=tcp;param=a
✔ sip:10.10.10.10:5060;transport=tcp;param=b
■ The database entry expires two hours after the last use.
■ The maximum number of destinations (i.e., database
entries) is 50.
■ The corresponding global parameter is
SBC3xxBehavior.
SBC Hold
'Remote Hold Format'
remote-hold-Format
[IPProfile_
SBCRemoteHoldFormat]
Defines the format of the SDP in the SIP re-INVITE (or
UPDATE) for call hold that the device sends to the held
party.
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