Maintenance Manual

Field Field Description Usage Tips
Outbound
call
configuration
This setting affects outgoing
SIPcalls and registration. The
options are:
Use registrar enables
SIPregistration and routes
outbound SIPcalls via the
registrar.
Use trunk disables SIPregistration
and tears down existing
registrations. Routes outbound
calls to the trunk destination, e.g.
VCS or CUCM.
Call direct disables SIPregistration
and tears down existing
registrations. Outbound SIPcalls
go directly (not via registrar or
trunk).
Use registrar:
■ Enables SIPregistrations, on a system-wide basis,
with the registrar address you provide.
■ Outgoing calls always go via registrar.
■ An outbound call will fail if the registrar does not
respond.
■ Incoming calls should come through the registrar and
will fail if the registrar does not respond.
Use trunk:
■ Directs outbound SIPcalls via the trunk to the
SIPserver address you provide.
■ The SIPserver, for example Cisco Video
Communication Server (VCS)or Cisco Unified Call
Manager (CUCM), is responsible for the onward
routing of outbound SIPcalls from the MCU.
■ If the dialed SIP address does not have a domain then
Outbound domain gets appended if present,
otherwise Outbound address gets appended.
Call direct:
■ The MCU will connect SIP calls directly if possible. It
does not use the Outbound address or Outbound
domain parameters.
■ The MCU does not attempt to use either the registrar or
trunk.
Outbound
address
The hostname or IPaddress of the
SIP registrar or trunk destination.
The MCU ignores this field if Outbound call configuration is
set to Call direct.
Outbound
domain
The domain of the SIP registrar or
trunk destination.
The MCU ignores this field if Outbound call configuration is
set to Call direct.
The MCU uses this value in the following ways:
■
username@outbounddomain to register a user with a
SIPregistrar (if SIPregistration is enabled)
■
numericId@outbounddomain to register a conference's
numeric ID with a SIPregistrar (if conference has
SIPregistration enabled)
■ Any outbound SIPcalls where the supplied address
does not contain an @ symbol.
If you do not specify an outbound domain, the MCU uses the
outbound address instead.
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