User`s manual

MP-1xx H.323 User’s Manual 5. Configuring the MP-1xx
Version 4.4 45 March 2005
2. Configure the general parameters under Protocol Definition according to Table 5-1.
3. Click the Submit button to save your changes.
4. To save the changes so they are available after a power fail refer to Section
5.12 on page
140.
Table
5-1: Protocol Definition, General Parameters (continues on pages 45 to 47)
Parameter Description
Connection Mode
[IsFastConnectUsed,
IsTunnelingUsed]
Gateway’s connection modes:
Normal [IsFastConnectUsed=0, IsTunnelingUsed=0] (default).
Tunneling [IsFastConnectUsed=0, IsTunnelingUsed=1].
Fast Start [IsFastConnectUsed=1, IsTunnelingUsed=0].
Fast Start + Tunneling [IsFastConnectUsed=1, IsTunnelingUsed=1].
The Fast Start connection mode allows a media path to be established using H.225,
without having to start the full H.245 protocol session. In some situations, you need to
use fast start in order to cut through the voice path before the called party answers the
call.
ini file note: The single Web parameter is represented by two ini file parameters.
Channel Select Mode
[ChannelSelectMode]
Port allocation algorithm for IP to Tel calls.
You can select one of the following methods:
• By phone number [0] = Select the gateway port according to the called number
(called number is defined in the ‘Endpoint Phone Number’ table).
• Cyclic Ascending [1] = Select the next available channel in an ascending cycle
order. Always select the next higher channel number in the hunt group. When the
gateway reaches the highest channel number in the hunt group, it selects the
lowest channel number in the hunt group and then starts ascending again.
• Ascending [2] = Select the lowest available channel. Always start at the lowest
channel number in the hunt group and if that channel is not available, select the
next higher channel.
• Cyclic Descending [3] = Select the next available channel in descending cycle
order. Always select the next lower channel number in the hunt group. When the
gateway reaches the lowest channel number in the hunt group, it selects the
highest channel number in the hunt group and then start descending again.
• Descending [4] = Select the highest available channel. Always start at the highest
channel number in the hunt group and if that channel is not available, select the
next lower channel.
• Number + Cyclic Ascending [5] = First select the gateway port according to the
called number (called number is defined in the ‘Endpoint Phone Number’ table). If
the called number isn’t found, then select the next available channel in ascending
cyclic order. Note that if the called number is found, but the port associated with this
number is busy, the call is released.
The default method is ‘By Phone Number’.
H.323 ID
[H323IDString]
Gateway H.323 ID used for registration to the Gatekeeper (RRQ) (when GWRegistrType
= 1 or 2), for Gatekeeper admission (ARQ) and call initialization (when
‘SourceEncodeType’ = 1 or 2).
You can enter a string up to 25 characters long.
Open H.245
[OpenH245onFS]
No [0] = The gateway doesn’t open an H.245 channel when making a Fast Start
connection (default).
After Connect Message [1] = The gateway opens an H.245 channel immediately after
the Fast Start connection is established.
Before Connect Message [2] = (Early Media) The gateway opens an H.245 channel as
soon as it can. This option applies to Normal and Fast Start.
The opening of an H.245 channel may be needed for relaying DTMF digits over H.245
channel during a call.
Open Media on Connect
[IsFSOpenMediaOnConnect]
No [0] = Voice channel is opened after an Alert message is sent (default).
Yes [1] = Voice channel is opened after the call is answered and a Connect message
is sent.
After a Setup message is received, the gateway can immediately open a voice channel,
or it can wait until the call is answered and Connect message is sent.
Note: This option is only relevant if you use Fast Start or Tunneling.