User`s guide

Chapter Five: Minimizing ISDN Charges Configuring AO/DI
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• Mode: Determines ISDN line usage when AO/DI is enabled.
• D-Channel Only: Data is only transferred on the D-channel.
• Normal: Data is transferred on the D-channel, plus both B-channels if required.
• Dial prefix: Specifies the prefix to dial when making a call. For example, 1 to call long distance, or 9 to
obtain an external line
• X.25 transmit queue threshold: Specifies the transmit queue threshold, in bytes, for X.25 on the
D-channel. When queued data exceeds this limit, for the period of time specified for the parameter Delay
for opening the 1st B-channel, the first B-channel is brought up. This parameter performs a similar
function to Threshold for opening the 1st B-channel, and can be used concurrently with that parameter.
To configure AO/DI
1.
On the Configuration main menu, click Connection Profiles.
2.
Click Edit for the profile you want to configure AO/DI for. You will see the following page.
3.
If you have not selected MLPPP + AO/DI as the Protocol, do so now.
4.
Click the More button next to the Protocol field. You will see the following page.
5.
Set the AO/DI parameters as required.
6.
Click Save.
7.
You are now ready to configure the X.25 parameters. See the next section in this chapter.