3Com MSR 50 Series Configuration Manual page 2273

Tunneling means that in fast connection mode, non-standard H.245 messages
■
(e.g., transparent transmission capability of DTMF digit) are encapsulated in an
H.225.0 Facility message to complete capability negotiation and call
forwarding, which makes it unnecessary to establish an independent H.245
TCP connection for transmission of H.245 message.
Enable fast connection and tunneling on the originating GW
Follow these steps to configure the fast connection and tunneling on the
originating GW:
To do...
Enter system view
Enter voice view
Enter voice dial program
view
Enter VoIP entity view
Enable fast connection
Enable the local end to
play ringback tones
Enable tunneling
Enable fast connection and tunneling on the terminating GW
You can enable or disable fast connection for each outgoing call on the originating
GW. If fast connection is enabled on the originating GW, the terminating GW will
determine whether to enable fast connection for call initialization or enable
tunneling, depending on the configurations of the voip called-start and voip
called-tunnel enable commands.
Follow these steps to enable fast connection and tunneling on the terminating
GW:
To do...
Enter system view
Enter voice view
Enter voice dial program view dial-program
Configure the call
initialization method for the
terminating GW
Use the command...
system-view
voice-setup
dial-program
entity entity-number
voip
fast-connect
send-ring
tunnel-on
Use the command...
system-view
voice-setup
voip called-start { fast |
normal }
Configuring VoIP Entity
Remarks
-
-
-
-
Required
Disabled by default.
Optional
In the fast connection mode, the
remote end plays ringback tones by
default.
This command is applicable only after
the fast connection is enabled in VoIP
entity view.
If you want the local end to play
ringback tones, carry out this
command.
Optional
Disabled by default.
This command is applicable only after
the fast connection is enabled.
Remarks
-
-
-
Optional
Fast connection by default.
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