User`s manual

Version 5.4 229 May 2008
SIP User's Manual 3. Web-Based Management
Mode Description
Channel Select
Mode
The method in which IP-to-Tel calls are assigned to channels pertaining to a
Trunk Group:
 By Dest Phone Number = Selects the device's channel according to the
called number defined in the 'Trunk Group Table' (refer to "Configuring the
Trunk Group Table" on page 226).
 Cyclic Ascending (default) = Selects the next available channel in an
ascending cyclic order. The next highest channel number in the Trunk Group
is always selected. When the highest channel number in the Trunk Group is
reached, the lowest channel number in the Trunk Group is selected, and
then it starts ascending again.
 Ascending = Selects the lowest available channel. The lowest channel
number in the Trunk Group is always first selected, and if that channel is
unavailable, the next highest channel is selected.
 Cyclic Descending = Selects the next available channel in descending cyclic
order. The next lowest channel number in the Trunk Group is always first
selected. When the lowest channel number in the Trunk Group is reached, it
selects the highest channel number in the Trunk Group and then start
descending again.
 Descending = Selects the highest available channel. The highest channel
number in the Trunk Group is always first selected, and if that channel is
unavailable, the next lowest channel is selected.
 Dest Number + Cyclic Ascending = The channel is first selected according to
the called number. If the called number isn't found, the next available
channel in ascending cyclic order is selected. Note that if the called number
is found, but the channel associated with the number is busy, the call is
released.
 By Source Phone Number = Selects the channel according to the calling
number.
 Trunk Cyclic Ascending = The first channel of the next Trunk (i.e., next to
the Trunk from which the previous channel was allocated) is selected.
Note: Not applicable for analog interfaces.
Registration Mode Registration mode per Trunk Group:
 Per Gateway = Single registration for the entire device (default). This mode
is applicable only if a default Proxy or Registrar IP are configured, and
Registration is enabled (i.e., parameter IsRegisterUsed is set to 1). In this
mode, the URI userpart in the From, To, and Contact headers is set to the
value of the global registration parameter GWRegistrationName (refer to
''Proxy & Registration Parameters'' on page 146) or username if
GWRegistrationName is not configured.
 Per Endpoint = Each channel in the Trunk Group registers individually. The
registrations are sent to the ServingIPGroupID if defined in the table,
otherwise to the default Proxy, and if no default Proxy, then to the Registrar
IP.
 Don't Register = No registrations are sent by endpoints pertaining to the
Trunk Group. For example, if the device is configured globally to register all
its endpoints (using the parameter ChannelSelectMode), you can exclude
some endpoints from being registered by assigning them to a Trunk Group
and configuring the Trunk Group registration mode to 'Don't Register'.
 Per Account = Registrations are sent (or not) according to the settings in the
Account table (refer to ''Configuring the Account Table'' on page 232).
Notes: